Performance information

• Synthesis of a dilithiobutadiene bearing extremely bulky silyl substituents and its reactivity toward functionalized silanes　　　　　　　　　　　　　　　
  Katharina Münster; Shunsuke Kudo; Takuya Kuwabara; Eriko Shimamura; Shunsuke Furukawa; Yusuke Yoshida; Shintaro Ishida; Takeaki Iwamoto; Kazuki Tanifuji; Yasuhiro Ohki; Mao Minoura; Masaichi Saito
  Dalton Transactions, 2025
  Scientific journal
  DOI：https://doi.org/10.1039/D4DT03537B
  DOI ID：10.1039/D4DT03537B, ORCID：177719608
• Charge Transport through Single-Molecule Junctions with σ-Delocalized Systems
  Shintaro Fujii; Saya Seko; Taichi Tanaka; Yuki Yoshihara; Shunsuke Furukawa; Tomoaki Nishino; Masaichi Saito
  Journal of the American Chemical Society, Volume：146, Number：28, Jul. 2024
  Scientific journal
  DOI：https://doi.org/10.1021/jacs.4c06732
  DOI ID：10.1021/jacs.4c06732, ISSN：1520-5126, ORCID：162867015, SCOPUS ID：85199125072
• Synthesis of O- and N-substituted pentaiodobenzenes bearing σ-symmetric delocalized orbitals using site-selective nucleophilic aromatic substitution reactions
  Takada, Y.; Minoura, M.; Furukawa, S.; Saito, M.
  Chemistry Letters, Volume：53, Number：2, 2024
  Scientific journal
  DOI：https://doi.org/10.1093/chemle/upad040
  DOI ID：10.1093/chemle/upad040, ISSN：1348-0715, ORCID：165904606, SCOPUS ID：85185764073
• Synthesis of a highly iodinated biphenyl with extension of σ-delocalization
  Takada, Y.; Furukawa, S.; Saito, M.
  Chemistry Letters, Volume：53, Number：3, 2024
  Scientific journal
  DOI：https://doi.org/10.1093/chemle/upae032
  DOI ID：10.1093/chemle/upae032, ISSN：1348-0715, ORCID：165904604, SCOPUS ID：85187641544
• σ-Delocalization between Non-bonded Selenium Atoms on Multiply Se-substituted Benzenes
  Saito, M.; Suzuki, T.; Takahashi, K.; Seko, S.; Furukawa, S.; Ishimura, K.
  Chemistry Letters, Volume：52, Number：2, First page：97, Last page：99, Feb. 2023
  The Chemical Society of Japan, English, Scientific journal
  DOI：https://doi.org/10.1246/cl.220489
  DOI ID：10.1246/cl.220489, ISSN：1348-0715, ORCID：165904609, SCOPUS ID：85151278172
• Creation of (σ+π)-Mixed Delocalization
  Saito, M.; Suzuki, T.; Takahashi, K.; Seko, S.; Furukawa, S.; Fujii, S.
  Chemistry Letters, Volume：52, Number：9, 2023
  Scientific journal
  DOI：https://doi.org/10.1246/cl.230279
  DOI ID：10.1246/cl.230279, ISSN：1348-0715, ORCID：165904633, SCOPUS ID：85175713898
• Frontispiz: Aktivierung eines biomimetischen [FeFe]‐Hydrogenase‐Komplexes für die H2‐Produktion mit sichtbarem Licht　　　　　　　　　　　　　　　
  Philipp Buday; Chizuru Kasahara; Elisabeth Hofmeister; Daniel Kowalczyk; Micheal K. Farh; Saskia Riediger; Martin Schulz; Maria Wächtler; Shunsuke Furukawa; Masaichi Saito; Dirk Ziegenbalg; Stefanie Gräfe; Peter Bäuerle; Stephan Kupfer; Benjamin Dietzek‐Ivanšić; Wolfgang Weigand
  Angewandte Chemie, May 2022
  Scientific journal
  DOI：https://doi.org/10.1002/ange.202282061
  DOI ID：10.1002/ange.202282061, ORCID：112373522
• Aktivierung eines biomimetischen [FeFe]‐Hydrogenase‐Komplexes für die H2‐Produktion mit sichtbarem Licht**　　　　　　　　　　　　　　　
  Philipp Buday; Chizuru Kasahara; Elisabeth Hofmeister; Daniel Kowalczyk; Micheal K. Farh; Saskia Riediger; Martin Schulz; Maria Wächtler; Shunsuke Furukawa; Masaichi Saito; Dirk Ziegenbalg; Stefanie Gräfe; Peter Bäuerle; Stephan Kupfer; Benjamin Dietzek‐Ivanšić; Wolfgang Weigand
  Angewandte Chemie, May 2022
  Scientific journal
  DOI：https://doi.org/10.1002/ange.202202079
  DOI ID：10.1002/ange.202202079, ORCID：110558821
• Activating a [FeFe] Hydrogenase Mimic for Hydrogen Evolution under Visible Light**
  Buday, P.; Kasahara, C.; Hofmeister, E.; Kowalczyk, D.; Farh, M.K.; Riediger, S.; Schulz, M.; W{\"a}chtler, M.; Furukawa, S.; Saito, M.; Ziegenbalg, D.; Gr{\"a}fe, S.; B{\"a}uerle, P.; Kupfer, S.; Dietzek-Ivan?i?, B.; Weig; , W.
  Angewandte Chemie - International Edition, Volume：61, Number：20, 2022
  Scientific journal
  DOI：https://doi.org/10.1002/anie.202202079
  DOI ID：10.1002/anie.202202079, ISSN：1521-3773, ORCID：165904620, SCOPUS ID：85126843459
• Ferroelectric columnar assemblies from the bowl-to-bowl inversion of aromatic cores
  Shunsuke Furukawa; Jianyun Wu; Masaya Koyama; Keisuke Hayashi; Norihisa Hoshino; Takashi Takeda; Yasutaka Suzuki; Jun Kawamata; Masaichi Saito; Tomoyuki Akutagawa
  Nature Communications, Volume：12, Number：1, Dec. 2021
  Organic ferroelectrics, in which the constituent molecules retain remanent polarization, represent an important topic in condensed-matter science, and their attractive properties, which include lightness, flexibility, and non-toxicity, are of potential use in state-of-the-art ferroelectric devices. However, the mechanisms for the generation of ferroelectricity in such organic compounds remain limited to a few representative concepts, which has hitherto severely hampered progress in this area. Here, we demonstrate that a bowl-to-bowl inversion of a relatively small organic molecule with a bowl-shaped π-aromatic core generates ferroelectric dipole relaxation. The present results thus reveal an unprecedented concept to produce ferroelectricity in small organic molecules, which can be expected to strongly impact materials science.
  Springer Science and Business Media LLC, Scientific journal
  DOI：https://doi.org/10.1038/s41467-021-21019-4
  DOI ID：10.1038/s41467-021-21019-4, eISSN：2041-1723, ORCID：88040012
• Transition-Metal Capping to Suppress Back-Donation to Enhance Donor Ability
  Saito, M.; Hamada, J.; Furukawa, S.; Hada, M.; Dost{\'a}l, L.; R??i?ka, A.
  Organometallics, Volume：39, Number：23, Dec. 2020
  American Chemical Society ({ACS}), Scientific journal
  DOI：https://doi.org/10.1021/acs.organomet.0c00534
  DOI ID：10.1021/acs.organomet.0c00534, ISSN：1520-6041, ORCID：165904613, SCOPUS ID：85094603012
• Hybrid Molecular Junctions Using Au–S and Au−π Bindings　　　　　　　　　　　　　　　
  Shintaro Fujii; Madoka Iwane; Shunsuke Furukawa; Tomofumi Tada; Tomoaki Nishino; Masaichi Saito; Manabu Kiguchi
  The Journal of Physical Chemistry C, Volume：124, Number：17, First page：9261, Last page：9268, Apr. 2020
  Electrically conductive molecular junctions are highly desirable components for applications in future molecular-scale electronic circuits. Here, we demonstrate an electrically conductive hybrid molecular junction that consists of Au-S and Au-πbindings using a sumanene derivative with three phosphine-sulfide anchoring groups at the periphery of the sumanene backbone. The molecular junction was prepared between the Au electrodes by the scanning tunneling microscopy-based break junction method. The three anchoring groups and the sumanene backbone in the junction form the Au-S chemical bonds and Au-πdirect bonds, respectively. The Au-S chemical binding immobilized the molecule on the Au electrode and provided the high mechanical stability of the junction, while the direct Au-πbinding led to the large metal-molecule electric coupling and high electronic conductance of the molecular junction. This study analyzes the molecular design of the electrically conductive molecular junctions based on the hybrid binding groups.
  American Chemical Society ({ACS}), Scientific journal
  DOI：https://doi.org/10.1021/acs.jpcc.9b11725
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85085063009&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85085063009&origin=inward
  DOI ID：10.1021/acs.jpcc.9b11725, ISSN：1932-7447, eISSN：1932-7455, ORCID：72294607, SCOPUS ID：85085063009
• Stereoselective thermal isomerization of triphosphasumanenes, utilized for stereocontrolled synthesis　　　　　　　　　　　　　　　
  Yuki Suda; Shunsuke Furukawa; Masaichi Saito
  Chemistry Letters, Volume：49, Number：4, First page：419, Last page：422, Apr. 2020
  We found stereoselective thermal isomerizations at the phosphorous centers of triphosphasumanenes in the solid state. Theoretical calculations and thermal analysis indicate that the isomerization is dominated by the thermodynamic stabilities of crystals depending on the alkoxy groups on their skeleton. The stereoselective isomerization of triphosphasumanene was utilized for the synthesis of a high out-of-plane anisotropic synderivative from a less out-of-plane anisotropic anti-derivative.
  Chemical Society of Japan, English, Scientific journal
  DOI：https://doi.org/10.1246/cl.200032
  DOI ID：10.1246/cl.200032, ISSN：1348-0715, SCOPUS ID：85083728766
• Synthesis and properties of perfluoroalkylated TIPS-pentacenes
  Agou, T.; Suzuki, S.; Kanno, Y.; Hosoya, T.; Fukumoto, H.; Mizuhata, Y.; Tokitoh, N.; Suda, Y.; Furukawa, S.; Saito, M.; Kubota, T.
  Tetrahedron, Volume：75, Number：47, First page：130678, Last page：130678, Nov. 2019
  Elsevier {BV}, Scientific journal
  DOI：https://doi.org/10.1016/j.tet.2019.130678
  DOI ID：10.1016/j.tet.2019.130678, ISSN：1464-5416, ORCID：165904615, SCOPUS ID：85073541463
• Inverted Sandwich Rh Complex Bearing a Plumbole Ligand and Its Catalytic Activity　　　　　　　　　　　　　　　
  Masaichi Saito; Marisa Nakada; Takuya Kuwabara; Ryota Owada; Shunsuke Furukawa; Radhika Narayanan; Minori Abe; Masahiko Hada; Ken Tanaka; Yoshihiko Yamamoto
  Organometallics, Volume：38, Number：16, First page：3099, Last page：3103, Aug. 2019
  A new possibility of a Rh(I) complex is demonstrated. An inverted sandwich Rh(I) complex bearing a dianionic plumbole ligand was synthesized by the reaction a dilithioplumbole with [Rh(cod)Cl](2). The plumbole ligand functions as a pi-donor stronger than the cyclopentadienyl ligand, as evidenced by quantum-chemical calculations. The Rh(I)-plumbole complex can be applied as a catalyst for an intramolecular [2+2+2] cycloaddition reaction of a triyne.
  American Chemical Society ({ACS}), English, Scientific journal
  DOI：https://doi.org/10.1021/acs.organomet.9b00339
  DOI ID：10.1021/acs.organomet.9b00339, ISSN：0276-7333, eISSN：1520-6041, ORCID：59307625, Web of Science ID：WOS:000483435900001
• Anionic stannaferrocene and its unique electronic state
  Saito, M.; Matsunaga, N.; Hamada, J.; Furukawa, S.; Tada, T.; Herber, R.H.
  Chemistry Letters, Volume：48, Number：2, First page：163, Last page：165, Jan. 2019, [Reviewed], ［International magazine］
  English, Scientific journal
  DOI：https://doi.org/10.1246/cl.180880
  DOI ID：10.1246/cl.180880, ISSN：1348-0715, ORCID：165904608, SCOPUS ID：85060582064
• Double aromaticity arising from σ- and π-rings
  Shunsuke Furukawa; Masahiro Fujita; Yoshihiko Kanatomi; Mao Minoura; Miho Hatanaka; Keiji Morokuma; Kazuya Ishimura; Masaichi Saito
  Communications Chemistry, Volume：1, Number：1, Sep. 2018
  Springer Science and Business Media LLC, Scientific journal
  DOI：https://doi.org/10.1038/s42004-018-0057-4
  DOI ID：10.1038/s42004-018-0057-4, ISSN：2399-3669, eISSN：2399-3669, ORCID：88480870
• Disodium Benzodipyrrole Sulfonate as Neutral Hole-Transporting Materials for Perovskite Solar Cells　　　　　　　　　　　　　　　
  Rui Shang; Zhongmin Zhou; Hiroki Nishioka; Henry Halim; Shunsuke Furukawa; Izuru Takei; Naoya Ninomiya; Eiichi Nakamura
  Journal of the American Chemical Society, Volume：140, Number：15, First page：5018, Last page：5022, Apr. 2018
  Hole-transporting material (HTM) is an indispensable constituent in organic electronic devices, generally comprising a donor/dopant combination. We report that a disodium salt of substituted benzo[1,2-b:4,5-b']dipyrrole bearing two racemic alkanediylsulfonate anion side chains (BDPSOs) serves as a neutral, nonhygroscopic, dopant-free HTM for lead perovskite (MAPbI(3)) solar cells. These organic/inorganic hybrid molecules are useful for tunable orbital level and controllable solubility. A fluorinated BDPSO has an energy level matched with MAPbI3, affording an inverted-structure solar cell that performs with 17.2% efficiency with minimal hysteresis. The solar cell devices fabricated using BDPSOs showed remarkable storage and operational stability.
  American Chemical Society ({ACS}), English, Scientific journal
  DOI：https://doi.org/10.1021/jacs.8b01783
  DOI ID：10.1021/jacs.8b01783, ISSN：0002-7863, eISSN：1520-5126, ORCID：43357982, Web of Science ID：WOS:000430642000015
• Heterobimetallic triple-decker complexes derived from a dianionic aromatic stannole ligand　　　　　　　　　　　　　　　
  Masaichi Saito; Naoki Matsunaga; Jumpei Hamada; Shunsuke Furukawa; Mao Minoura; Susann Wegner; Juri Barthel; Christoph Janiak
  Dalton Transactions, Volume：47, Number：27, First page：8892, Last page：8896, 2018
  A neutral heterobimetallic triple-decker stannole complex was prepared by the reaction of an anionic ruthenocene bearing a stannole dianionic ligand with [Rh(cod)Cl]2 (cod = 1,5-cyclooctadiene), and the resulting Ru-Rh complex exhibits an electronic property different from those of the corresponding Ru-Ru and Rh-Rh complexes. The Ru-Rh complex can be decomposed in ionic liquids to metal nanoparticles.
  Royal Society of Chemistry ({RSC}), Scientific journal
  DOI：https://doi.org/10.1039/C8DT01455H
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85049339612&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85049339612&origin=inward
  DOI ID：10.1039/C8DT01455H, ISSN：1477-9226, eISSN：1477-9234, ORCID：44839236, PubMed ID：29774331, SCOPUS ID：85049339612
• Synthesis and properties of spiro-type heterasumanenes containing group 14 elements as bridging atoms†
  Furukawa, S.; Hayashi, K.; Yamagishi, K.; Saito, M.
  Materials Chemistry Frontiers, Volume：2, Number：5, 2018
  Royal Society of Chemistry ({RSC}), Scientific journal
  DOI：https://doi.org/10.1039/C7QM00590C
  DOI ID：10.1039/C7QM00590C, ISSN：2052-1537, ORCID：165904625, SCOPUS ID：85054124124
• Anisotropic Crystals Based on a Main-Group Coordination Polymer with Alignment of Rigid π Skeletons　　　　　　　　　　　　　　　
  Masaichi Saito; Tomoki Akiba; Shunsuke Furukawa; Mao Minoura; Masahiko Hada; Hiroshi Y. Yoshikawa
  Organometallics, Volume：36, Number：14, First page：2487, Last page：2490, Jul. 2017
  We succeeded in the alignment of π skeletons, resulting in the formation of anisotropic crystals. The combination of plumbacyclopentadienylidene, which has a divalent lead atom incorporated into the π skeleton, and 1,4-dioxane afforded a coordination polymer, where the π skeletons are completely aligned in the same direction. The resulting plumbylene chains are also aligned in the same direction in the solid state, and therefore the crystals are noncentrosymmetric, showing second-harmonic generation (SHG) properties. Using pyrazine instead of 1,4-dioxane afforded an adduct composed of three plumbole units and two pyrazine molecules, and the crystals are symmetric and exhibit no SHG properties. The solid-state structures and optical properties are highly dependent on the Lewis base utilized. The present findings spotlight the use of group 14 divalent species incorporated into a π skeleton as a novel, useful method for the creation of a π-aligned coordination polymer with NLO properties.
  American Chemical Society ({ACS}), Scientific journal
  DOI：https://doi.org/10.1021/acs.organomet.7b00217
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85025679539&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85025679539&origin=inward
  DOI ID：10.1021/acs.organomet.7b00217, ISSN：0276-7333, eISSN：1520-6041, ORCID：34611345, SCOPUS ID：85025679539
• Formation of dibenzopentalene-linking polymers under the two-zone CVD and wet conditions
  Saito, M.; Suda, Y.; Furukawa, S.; Nakae, T.; Kojima, T.; Sakaguchi, H.
  Chemistry Letters, Volume：46, Number：8, May 2017
  The Chemical Society of Japan, Scientific journal
  DOI：https://doi.org/10.1246/cl.170396
  DOI ID：10.1246/cl.170396, ISSN：1348-0715, ORCID：165904617, SCOPUS ID：85026625804
• Triphosphasumanene Trisulfide: High Out-of-Plane Anisotropy and Janus-Type π-Surfaces　　　　　　　　　　　　　　　
  Shunsuke Furukawa; Yuki Suda; Junji Kobayashi; Takayuki Kawashima; Tomofumi Tada; Shintaro Fujii; Manabu Kiguchi; Masaichi Saito
  Journal of the American Chemical Society, Volume：139, Number：16, First page：5787, Last page：5792, Apr. 2017
  A triphosphasumanene trisulfide was designed and synthesized as an out-of-plane anisotropic π-conjugated molecule. Incorporating three anisotropic phosphine sulfide moieties into a sumanene skeleton induced a cumulative anisotropy with a large dipole moment (12.0 D), which is aligned in perpendicular direction with respect to the π-framework and more than twice as large as those of conventional out-of-plane anisotropic molecules. In the crystal, the molecules align to form columnar structures, in which electron-rich and electron-deficient sides of the π-framework face each other. The interactions between the electron-rich surfaces, which contain three sulfur atoms, and Au(111) were examined by X-ray photoelectron spectroscopy.
  American Chemical Society ({ACS}), Scientific journal
  DOI：https://doi.org/10.1021/jacs.6b12119
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85018319574&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85018319574&origin=inward
  DOI ID：10.1021/jacs.6b12119, ISSN：0002-7863, eISSN：1520-5126, ORCID：33184063, PubMed ID：28387119, SCOPUS ID：85018319574
• Cover Picture: Efficient Synthesis of 1,4-Bis-heteroatom-substituted Tetraselanylbenzenes via 1,4-Dilithiation of Hexaselanylbenzene and Investigation on Their Electronic Properties (Chem. Asian J. 9/2017)　　　　　　　　　　　　　　　
  Masahiro Fujita; Shunsuke Furukawa; Masaichi Saito
  Chemistry - An Asian Journal, Volume：12, Number：9, First page：947, Last page：947, Apr. 2017
  Wiley-Blackwell, Scientific journal
  DOI：https://doi.org/10.1002/asia.201700309
  DOI ID：10.1002/asia.201700309, ORCID：33184139
• Efficient Synthesis of 1,4-Bis-heteroatom-substituted Tetraselanylbenzenes via 1,4-Dilithiation of Hexaselanylbenzene and Investigation on Their Electronic Properties
  Fujita, M.; Furukawa, S.; Saito, M.
  Chemistry - An Asian Journal, Volume：12, Number：9, First page：954, Last page：957, Mar. 2017
  Wiley-Blackwell, Scientific journal
  DOI：https://doi.org/10.1002/asia.201700164
  DOI ID：10.1002/asia.201700164, ISSN：1861-471X, ORCID：165904605, SCOPUS ID：85015308443
• Synthesis and reactivity of a ruthenocene-type complex bearing an aromatic π-ligand with the heaviest group 14 element　　　　　　　　　　　　　　　
  Marisa Nakada; Takuya Kuwabara; Shunsuke Furukawa; Masahiko Hada; Mao Minoura; Masaichi Saito
  Chem. Sci., Volume：8, Number：4, First page：3092, Last page：3097, 2017
  An anionic ruthenocene derived from a dilithioplumbole complex was prepared. In the complex, the plumbole ligand coordinates a ruthenium atom in an η5-fashion, similar to the cyclopentadienyl ligand in ferrocene. The ruthenocene that has the aromatic π-ligand with the heaviest group 14 element reacted with electrophiles to afford the plumbole complexes wherein the plumbole ligands show deviation from planarity, in contrast to the planar plumbole ring in the anionic ruthenocene. The bent angles of the plumbole ligands are dependent on the substituents on the lead atoms. Cyclic voltammetry measurements revealed that the plumbole complexes are oxidized more easily than the corresponding stannole complexes.
  Royal Society of Chemistry ({RSC}), Scientific journal
  DOI：https://doi.org/10.1039/c6sc04843a
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85016458912&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85016458912&origin=inward
  DOI ID：10.1039/c6sc04843a, ISSN：2041-6520, eISSN：2041-6539, ORCID：33184138, SCOPUS ID：85016458912
• Benzodipyrrole-based Donor–Acceptor-type Boron Complexes as Tunable Near-infrared-Absorbing Materials　　　　　　　　　　　　　　　
  Nakamura, T.; Furukawa, S.; Nakamura, E.
  Chemistry - An Asian Journal, Volume：11, Number：14, Jul. 2016
  Scientific journal
  DOI：https://doi.org/10.1002/asia.201600673
  DOI ID：10.1002/asia.201600673, ISSN：1861-471X, ORCID：165904616, PubMed ID：27311060, SCOPUS ID：84978032326
• The Chemistry of Heterasumanenes　　　　　　　　　　　　　　　
  Saito, Masaichi; Furukawa, Shunsuke; Kobayashi, Junji; Kawashima, Takayuki
  Chemical Record, Volume：16, Number：1, First page：64, Last page：72, 2016
  Our studies on the synthesis of heterasumanenes, where benzylic carbon atoms of the sumanene are replaced by heteroatom functionalities, are summarized. Starting from triphenylene, repetitive lithiation at a bay position followed by introduction of silylene or germylene units provided the first trisila- and trigermasumanenes with no substituents on the skeletal carbon atoms. The synthesis of a trisilasumanene bearing six butoxy groups on the skeletal carbon atoms was also accomplished by our original sila-Friedel-Crafts reaction. A heterasumanene bearing three different heteroatom functionalities was also prepared from triphenylenothiophene by a sequential lithiation method, even though protecting groups were necessary to prevent lithiation at the -carbon atoms of the dibenzothiophene unit. Structural analysis and optical properties of the novel heterasumanenes are also described.
  WILEY-V C H VERLAG GMBH, English, Scientific journal
  DOI：https://doi.org/10.1002/tcr.201500211
  DOI ID：10.1002/tcr.201500211, ISSN：1527-8999, eISSN：1528-0691, ORCID：28346160, Web of Science ID：WOS:000371261600006
• Hexaaryl-benzodipyrroles: Properties and application as amorphous carrier-transporting materials　　　　　　　　　　　　　　　
  Tsuji, H.; Yokoi, Y.; Furukawa, S.; Nakamura, E.
  Heterocycles, Volume：90, Number：1, 2015
  Scientific journal
  DOI：https://doi.org/10.3987/COM-14-S(K)16
  DOI ID：10.3987/COM-14-S(K)16, ISSN：1881-0942, ORCID：165904621, SCOPUS ID：84923306345, Web of Science ID：WOS:000349505800025
• Synthesis of pi-Extended Dibenzophospholes by Intramolecular Radical Cyclization and Their Properties　　　　　　　　　　　　　　　
  Furukawa, Shunsuke; Haga, Shunsuke; Kobayashi, Junji; Kawashima, Takayuki
  Organic Letters, Volume：16, Number：12, First page：3228, Last page：3231, 2014
  American Chemical Society (ACS), Scientific journal
  DOI：https://doi.org/10.1021/ol501189u
  DOI ID：10.1021/ol501189u, ISSN：1523-7060, eISSN：1523-7052, ORCID：28346164, Web of Science ID：WOS:000337869800015
• Synthesis of Triphosphatruxene via Sextuple Aromatic Nucleophilic Substitution and Simple Isolation of Stereoisomers　　　　　　　　　　　　　　　
  Kojima, Tatsuo; Furukawa, Shunsuke; Tsuji, Hayato; Nakamura, Eiichi
  Chemistry Letters, Volume：43, Number：5, First page：676, Last page：677, 2014
  The phosphorus analog of truxene, triphosphatruxene, was effectively synthesized by a sextuple aromatic nucleophilic substitution reaction with phenylphosphine. The vacuum sublimation process completely converted the mixture of stereoisomers into the thermodynamically unpreferred syn-isomer.
  The Chemical Society of Japan, English, Scientific journal
  DOI：https://doi.org/10.1246/cl.131195
  DOI ID：10.1246/cl.131195, ISSN：0366-7022, CiNii Articles ID：130004868120, ORCID：28346165, Web of Science ID：WOS:000335619600036
• Near-infrared absorbing heterocyclic quinoid donors for organic solar cell devices　　　　　　　　　　　　　　　
  Ay, E.; Furukawa, S.; Nakamura, E.
  Organic Chemistry Frontiers, Volume：1, Number：8, 2014
  Scientific journal
  DOI：https://doi.org/10.1039/c4qo00182f
  DOI ID：10.1039/c4qo00182f, ISSN：2052-4129, ORCID：165904632, SCOPUS ID：84939554026, Web of Science ID：WOS:000364429800016
• Formation of a polycrystalline film of donor material on PEDOT:PSS buffer induced by crystal nucleation　　　　　　　　　　　　　　　
  Harano, K.; Okada, S.; Furukawa, S.; Tanaka, H.; Nakamura, E.
  Journal of Polymer Science, Part B: Polymer Physics, Volume：52, Number：12, 2014
  Scientific journal
  DOI：https://doi.org/10.1002/polb.23493
  DOI ID：10.1002/polb.23493, ISSN：1099-0488, ORCID：165904601, SCOPUS ID：84900481023, Web of Science ID：WOS:000335977500005
• Tripyridyltruxenes: Thermally stable cathode buffer materials for organic thin-film Solar Cells　　　　　　　　　　　　　　　
  Tsuji, H.; Ota, Y.; Furukawa, S.; Mitsui, C.; Sato, Y.; Nakamura, E.
  Asian Journal of Organic Chemistry, Volume：1, Number：1, 2012
  Scientific journal
  DOI：https://doi.org/10.1002/ajoc.201200021
  DOI ID：10.1002/ajoc.201200021, ISSN：2193-5807, ORCID：165904602, SCOPUS ID：84896544221, Web of Science ID：WOS:000325943800005
• The first observation of electroluminescence from di(2-naphthyl)disilene, an Si=Si double bond-containing pi-conjugated compound　　　　　　　　　　　　　　　
  Tamao, Kohei; Kobayashi, Megumi; Matsuo, Tsukasa; Furukawa, Shunsuke; Tsuji, Hayato
  Chemical Communications, Volume：48, Number：7, First page：1030, Last page：1032, 2012
  Air-stable, room-temperature emissive di(2-naphthyl)disilene, protected by the bulky 1,1,3,3,5,5,7,7-octaethyl-s-hydrindacen-4-yl (Eind) groups, can emit light in an organic light-emitting diode, thus providing the first experimental demonstration of electroluminescence from the heavy group 14 unsaturated compounds. © 2012 The Royal Society of Chemistry.
  Scientific journal
  DOI：https://doi.org/10.1039/c1cc16067b
  Scopus：https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84855376343&origin=inward
  Scopus Citedby：https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84855376343&origin=inward
  DOI ID：10.1039/c1cc16067b, ISSN：1359-7345, eISSN：1364-548X, ORCID：28346166, SCOPUS ID：84855376343, Web of Science ID：WOS:000299649900027
• Design, Synthesis, and Characterization of Functionalized Silepins: High Quantum Yield Blue Emitters　　　　　　　　　　　　　　　
  Mercier, Lauren G.; Furukawa, Shunsuke; Piers, Warren E.; Wakamiya, Atsushi; Yamaguchi, Shigehiro; Parvez, Masood; Harrington, Ross W.; Clegg, William
  Organometallics, Volume：30, Number：6, First page：1719, Last page：1729, 2011
  The synthesis of a family of 1,1-dimethyldibenzo-[bf]silepin derivatives, substituted with. donor groups of various donor strength and conjugation length in the positions meta or para to the silepin silicon, is presented. The compounds were characterized by NMR, UV-vis, and fluorescence spectroscopy, as well as with cyclic voltammetry and DFT computations. One of the meta series was characterized by X-ray crystallography. All compounds show red-shifts in onset absorption and emission maxima compared to the parent 1,1-dimethyldibenzo[bf]silepin, but all exhibit blue fluorescence with quantum yields ranging from 0.46 to 0.93 for the meta series and from 0.09 to 0.46 for the para derivatives. The data suggest that, for the meta series, the primary absorption is of pi-pi* character, while in the para series, for strongly donating groups, transitions from low-lying pi orbitals to the LUMO+1 orbital, which has contributions from the C-Si-C sigma* orbitals, are charge-transfer in character. The phenyl-substituted derivatives can be converted to borepins via transmetalation with BBr3, but other strategies are necessary to prepare borepins with other donor groups.
  AMER CHEMICAL SOC, English, Scientific journal
  DOI：https://doi.org/10.1021/om2000597
  DOI ID：10.1021/om2000597, ISSN：0276-7333, eISSN：1520-6041, ORCID：28346168, Web of Science ID：WOS:000288470900055
• Application of the sila-Friedel-Crafts reaction to the synthesis of pi-extended silole derivatives and their properties　　　　　　　　　　　　　　　
  Furukawa, Shunsuke; Kobayashi, Junji; Kawashima, Takayuki
  Dalton Transactions, Volume：39, Number：39, First page：9329, Last page：9329, 2010
  Royal Society of Chemistry (RSC), Scientific journal
  DOI：https://doi.org/10.1039/c0dt00136h
  DOI ID：10.1039/c0dt00136h, ISSN：1477-9226, eISSN：1477-9234, ORCID：28346169, Web of Science ID：WOS:000282220500024
• Development of a Sila-Friedel-Crafts Reaction and Its Application to the Synthesis of Dibenzosilole Derivatives　　　　　　　　　　　　　　　
  Furukawa, Shunsuke; Kobayashi, Junji; Kawashima, Takayuki
  Journal of the American Chemical Society, Volume：131, Number：40, First page：14192, Last page：+, 2009
  An intramolecular sila-Friedel-Crafts reaction was developed and applied to the synthesis of dibenzosilole derivatives. This reaction proceeds under mild conditions to afford the target in relatively high yield, indicating its availabilty as a versatile synthetic method. The synthesis of trisilasumanene, a silicon analogue of sumanene, was achieved using the present reaction.
  AMER CHEMICAL SOC, English, Scientific journal
  DOI：https://doi.org/10.1021/ja906566r
  DOI ID：10.1021/ja906566r, ISSN：0002-7863, ORCID：28346170, Web of Science ID：WOS:000271271500033
• Formation of a stable sulfenic acid by hydrolysis of a thionitrate and a sulfenyl bromide　　　　　　　　　　　　　　　
  Goto, Kei; Shimada, Keiichi; Furukawa, Shunsuke; Miyasaka, Shinji; Takahashi, Yusuke; Kawashima, Takayuki
  Chemistry Letters, Volume：35, Number：8, First page：862, Last page：863, 2006
  Alkaline hydrolysis of a thionitrate and a sulfenyl bromide bearing a bowl-type steric protection group produced a stable sulfenic acid. This provides a conclusive demonstration of these elementary processes. It was shown that a very efficient steric protection group is necessary to prevent the condensation of the sulfenate anion generated during the hydrolysis.
  The Chemical Society of Japan, English, Scientific journal
  DOI：https://doi.org/10.1246/cl.2006.862
  DOI ID：10.1246/cl.2006.862, ISSN：0366-7022, CiNii Articles ID：10018187382, CiNii Books ID：AA00603318, ORCID：28346171, Web of Science ID：WOS:000240713700018

• THE SOCIETY OF SYNTHETIC ORGANIC CHEMISTRY, JAPAN

• 電荷輸送性を有するσ非局在系分子の開発と電子状態の解明　　　　　　　　　　　　　　　
  01 Apr. 2024 - 31 Mar. 2027
  Grant amount(Total)：4680000, Direct funding：3600000, Indirect funding：1080000
  Grant number：24K08378
• Comprehensive structure determination of carbon nanotubes　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 01 Apr. 2021 - 31 Mar. 2024
  Grant amount(Total)：16510000, Direct funding：12700000, Indirect funding：3810000
  Grant number：21H01758
• σ非局在系開殻分子を鍵とする多次元分子ネットワークの構築　　　　　　　　　　　　　　　
  01 Apr. 2020 - 31 Mar. 2023
  Grant amount(Total)：4290000, Direct funding：3300000, Indirect funding：990000
  Grant number：20K05459
• Creation of Carrier Transporting Molecules utilizing Interactions between sigma-Symmetric Orbitals　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Challenging Research (Exploratory), 29 Jun. 2018 - 31 Mar. 2020
  FURUKAWA Shunsuke, Saitama University
  Grant amount(Total)：6370000, Direct funding：4900000, Indirect funding：1470000
  The purpose of this study is to construct the theory of charge transporting organic molecules utilizing the interaction between σ-symmetric orbitals.
  In this study, new molecular systems of "orthogonal σ-conjugated molecule" and "σ-π mixed conjugated molecule" were synthesized, and the charge transporting ability was evaluated.
  The synthesis of the orthogonal σ-conjugated molecules were very difficult, and the target compounds could not be obtained. Some of the σ-π mixed conjugated molecules could be synthesized by optimizing the reaction conditions, and that these molecular orbitals formed a network structure showing three-dimensional interaction.
  Grant number：18K19067
• Creation of Main Group Compounds Behaving Like Transition-metal Compounds and Their Reactivity　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Challenging Research (Exploratory), Jun. 2017 - Mar. 2019
  Saito Masaichi; Furukawa Shunsuke, Saitama University
  Grant amount(Total)：6500000, Direct funding：5000000, Indirect funding：1500000
  We have focused on the reactivity of a zero-valent main group compounds stabilized by a butadiene as a 4pi electron donor that we have already synthesized and is still the only one example of a zero-valent main group compounds stabilized by a butadiene ligand. We have found a unique ligand exchange reaction in the zero-valent tin compound, which is normally observed in the zero-valent transition-metal compounds. The stability of the zero-valent tin compounds is highly dependent on substituents on the carbon atoms. We have also succeeded in the synthesis of the first example of a zero-valent lead compound stabilized by a butadiene ligand.
  Grant number：17K19113
• Main Group pi-Figuration　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area), Jul. 2014 - Mar. 2019
  Saito Masaichi; Furukawa Shunsuke, Saitama University
  Grant amount(Total)：38090000, Direct funding：29300000, Indirect funding：8790000
  We have accomplished the creation of pi-systems that cannot be accessed by the use of only carbon atoms but can be synthesized by taking advantage of heavy main group atoms, which adopt a wide variety of structures and exhibit a wide variety of reactivities. We have succeeded in the creation of a out-of-plane anisotropic pi-conjugated compound by the introduction of phosphorus functionalities. We have demonstrated a bowl-to-bowl inversion of a pi-conjugated compound bearing long C-main group atom bonds as a new strategy for the creation of organoferroelectric compounds. We have succeeded in the synthesis of a coordination polymer by the use of a vacant orbital of a divalent tin compound and a wide variety of transition-metal complexes that bear unique electronic structures derived from an aromatic dianionic tin compound.
  Grant number：26102006
• Creation of pi-Conjugated System Possessing a Long Exciton Diffusion Length toward Efficient Organic Solar Cells　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Challenging Exploratory Research, 01 Apr. 2016 - 31 Mar. 2018
  FURUKAWA Shunsuke; SAEKI Akinori, Saitama University
  Grant amount(Total)：3770000, Direct funding：2900000, Indirect funding：870000
  During this research, we found two unexpected results. First, we have succeeded in synthesizing new organolead compounds known as plumbylenoid. We revealed the structures and properties of the obtained the species. Second, we have created a new pi-conjugated molecules having front/back two-faced character. We elucidated its electronic character, and demonstrated the surface treatment of metal surfaces by using the obtained compound.
  Grant number：16K13945
• 光感応性大環状へテラスマネンの創製と高効率光電荷移動システムの開発　　　　　　　　　　　　　　　
  01 Apr. 2015 - 31 Mar. 2017
  Grant amount(Total)：6240000, Direct funding：4800000, Indirect funding：1440000
  Grant number：15H00918
• Development of Near-Infrared Absorbing Materials for Effcient Organic Solar Cells　　　　　　　　　　　　　　　
  Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), 01 Apr. 2014 - 31 Mar. 2016
  FURUKAWA Shunsuke, Saitama University
  Grant amount(Total)：3640000, Direct funding：2800000, Indirect funding：840000
  The purpose of this research is to develop new class of near-infrared absorbing materials, which are beneficial for efficient organic solar cells. In this study, new quinoid-type materials have been synthesized, and were found to be efficient near-infrared absorbing materials (absorption wavelength: ~890 nm). By applying these materials to donor layers of organic solar cells, a photocurrent conversion at near-infrared region has been achieved.
  As a new class of the longer wavelength absorbing materials, donor-acceptor type boron complexes has been designed and synthesized. These boron complexes showed longer wavelength absorptions up to 1050 nm, which are essential for absorbing the sunlight.
  Grant number：26870144
• 典​型​元​素​を​活​用​し​た​ヘ​テ​ロ​ー​π​共​役​化​合​物​群​の​創​製　　　　　　　　　　　　　　　
  Competitive research funding
• 有機機能性材料、有​機​​デバイス​の​研​究　　　　　　　　　　　　　　　
  Competitive research funding