1
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Kawase Y, Tsujimoto S, Obayashi T, Kimura S, Ito K, Ikoma S, Ota K, Hashizume D, Matsuo T. Selective monooxygenation of diphosphenes with molecular oxygen. Dalton Trans 2024; 53:1956-1960. [PMID: 38235826 DOI: 10.1039/d3dt04348g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
The O2 splitting mediated by the bulky Rind-based diphosphenes resulted in the clean formation of the mixed-valent diphosphorus compounds, diphosphene oxides, with P2O moieties. Their structural features and electronic properties have been clearly characterized by experimental and theoretical methods.
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Affiliation(s)
- Yuria Kawase
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Shota Tsujimoto
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Tomohiro Obayashi
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Satoshi Kimura
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Kanta Ito
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Shotaro Ikoma
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Kei Ota
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tsukasa Matsuo
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
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2
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Kuroda A, Fujita N, Horita T, Ota K, Rosas-Sánchez A, Hoshino M, Hashizume D, Matsuo T. Formation and Reactions of Ge=O Double-Bonded Species Bearing EMind Groups. CHEM LETT 2022. [DOI: 10.1246/cl.220222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Airi Kuroda
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Naoko Fujita
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Tomomi Horita
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Kei Ota
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Alfredo Rosas-Sánchez
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Departamento de Química, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Blvd. Marcelino García Barragán #1421, esq. Olímpica, C.P. 44430 Guadalajara, Jalisco, México
| | - Manabu Hoshino
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tsukasa Matsuo
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
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3
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Weakly Bound Dimer of a Diaryloxygermylene Derived from a tBuPh2Si-Substituted 2,2′-Methylenediphenol. CRYSTALS 2022. [DOI: 10.3390/cryst12050605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Novel diaryloxygermylenes have been prepared by the reaction of Lappert’s germylene, Ge[N(SiMe3)2]2, with 2,2′-methylenediphenols bearing different substituents. The bulkiness of the substituents on the ortho positions of the phenolic oxygen (6 and 6′ positions) affects the structure of the products both in the solid-state and in solution. When the ortho substituents are SitBuPh2, the diaryloxygemylene crystalizes as a weakly bound dimer with intermolecular Ge…O distances of ca. 3.0 Å and exists as a monomer in solution. In contrast, the germylene with SiMePh2 groups as the ortho substituents form a tightly bound dimer featuring a Ge2O2 rhombus with cis-oriented terminal aryloxy groups in the crystalline state, which is confirmed to be maintained in solution through the VT (variable-temperature)-1H NMR studies. To the best of our knowledge, the former dimeric structure is unprecedented in the family of dioxytetrylenes.
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4
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Koshino K, Kojima KM, McKenzie I, Ito S. Muonium Addition to a peri-Trifluoromethylated 9-Phosphaanthracene Producing a High-Energy Paramagnetic π-Conjugated Fused Heterocycle. Angew Chem Int Ed Engl 2021; 60:24034-24038. [PMID: 34409713 DOI: 10.1002/anie.202109784] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Indexed: 01/08/2023]
Abstract
In this communication, we report muon spin rotation/resonance (μSR) studies for understanding radical reactivity of 10-mesityl-1,8-bis(trifluoromethyl)-9-phosphaanthracene. Transverse-field muon spin rotation (TF-μSR) and muon avoided level-crossing resonance (μLCR) measurements successfully visualized a paramagnetic species produced by regioselective addition of muonium (Mu) to the skeletal phosphorus atom. Density functional theory (DFT) calculations for the P-muoniation product suggested two possible isomers. Whereas the most stable isomer including the envelope-type phosphorus heterocycle shows considerably different hyperfine coupling constants (hfcs) from those of the TF-μSR and μLCR, the metastable structure accompanying the almost planar tricyclic π-conjugated skeleton could simulate the experimentally determined hfcs. The metastable planar π-conjugated paramagnetic tricyclic-fused skeleton is promoted by the larger zero-point energy due to the light muon (μ+ ), one ninth of the proton mass.
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Affiliation(s)
- Kota Koshino
- Department of Applied Chemistry, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-H113 Ookayama, Meguro-ku, Tokyo, 152-8552, Japan.,Present address: Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Kenji M Kojima
- Centre for Molecular and Materials Science, TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, V6T 2A3, Canada
| | - Iain McKenzie
- Centre for Molecular and Materials Science, TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, V6T 2A3, Canada
| | - Shigekazu Ito
- Department of Applied Chemistry, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-H113 Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
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5
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Koshino K, Kojima KM, McKenzie I, Ito S. Muonium Addition to a
peri
‐Trifluoromethylated 9‐Phosphaanthracene Producing a High‐Energy Paramagnetic π‐Conjugated Fused Heterocycle. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kota Koshino
- Department of Applied Chemistry School of Materials and Chemical Technology Tokyo Institute of Technology 2-12-1-H113 Ookayama, Meguro-ku Tokyo 152-8552 Japan
- Present address: Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Kenji M. Kojima
- Centre for Molecular and Materials Science TRIUMF 4004 Wesbrook Mall Vancouver BC V6T 2A3 Canada
| | - Iain McKenzie
- Centre for Molecular and Materials Science TRIUMF 4004 Wesbrook Mall Vancouver BC V6T 2A3 Canada
| | - Shigekazu Ito
- Department of Applied Chemistry School of Materials and Chemical Technology Tokyo Institute of Technology 2-12-1-H113 Ookayama, Meguro-ku Tokyo 152-8552 Japan
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6
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Wang Z, Yadav P, Abe M. Long-lived localised singlet diradicaloids with carbon-carbon π-single bonding (C-π-C). Chem Commun (Camb) 2021; 57:11301-11309. [PMID: 34633003 DOI: 10.1039/d1cc04581d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Localised singlet cyclopentane-1,3-diyl diradicaloids have been considered promising candidates for constructing carbon-carbon π-single bonds (C-π-C). However, the high reactivity during formation of the σ-bond has limited a deeper investigation of its unique chemical properties. In this feature article, recent progress in kinetic stabilisation based on the "stretch effect" and the "solvent dynamic effect" induced by the macrocyclic system is summarised. Singlet diradicaloids S-DR4a/b and S-DR4d containing macrocyclic rings showed much longer lifetimes at 293 K (14 μs for S-DR4a and 156 μs for S-DR4b in benzene) compared to the parent singlet diradicaloid S-DR2 having no macrocyclic ring (209 ns in benzene). Furthermore, the dynamic solvent effect in viscous solvents was observed for the first time in intramolecular σ-bond formation, the lifetime of S-DR4d increased to 400 μs in the viscous solvent glycerin triacetin at 293 K. The experimental results proved the validity of the "stretch effect" and the "solvent dynamic effect" on the kinetic stabilisation of singlet cyclopentane-1,3-diyl diradicaloids, and provided a strategy for isolating the carbon-carbon π-single bonded species (C-π-C), and towards a deeper understanding of the nature of chemical bonding.
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Affiliation(s)
- Zhe Wang
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan.
| | - Pinky Yadav
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan.
| | - Manabu Abe
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan.
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7
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Ohno R, Numata Y, Konaka S, Yagura S, Kuroda A, Harada M, Fujita N, Hayakawa N, Nakai H, Rosas-Sánchez A, Hashizume D, Matsuo T. Synthesis and Characterization of a Series of Diarylgermylenes and Dihalodigermenes Having Fused-Ring Bulky “Rind” Groups. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ryoma Ohno
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Yasuyuki Numata
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Shigeaki Konaka
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Shogo Yagura
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Airi Kuroda
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Mao Harada
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Naoko Fujita
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Naoki Hayakawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Hidetaka Nakai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Alfredo Rosas-Sánchez
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tsukasa Matsuo
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
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8
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Numata Y, Nishikawa Y, Inoue K, Ohnishi H, Konaka S, Tanikawa T, Hashizume D, Matsuo T. A Series of Room-Temperature Thermally Stable Bromostannylenes Bearing the Bulky Rind Group: Synthesis, Characterization, and Crystal Structures. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yasuyuki Numata
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Yuri Nishikawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Konan Inoue
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Hiroaki Ohnishi
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Shigeaki Konaka
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Tomoharu Tanikawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tsukasa Matsuo
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
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9
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Kuriki R, Kuwabara T, Ishii Y. Synthesis and structures of diaryloxystannylenes and -plumbylenes embedded in 1,3-diethers of thiacalix[4]arene. Dalton Trans 2020; 49:12234-12241. [PMID: 32853307 DOI: 10.1039/d0dt02496a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
New types of diaryloxystannylenes and -plumbylenes have been synthesized and structurally characterized. Lappert's diaminostannylene and -plumbylene E[N(SiMe3)2]2 (E = Sn, Pb) react with 1,3-diethers of tetrathiacalix[4]arene bearing benzyl or SiiPr3 groups to give the corresponding diaryloxystannylenes and -plumbylenes embedded in thiacalix[4]arene, respectively. X-ray diffraction analysis revealed that these tetrylenes exist as monomers in the solid-state. The structure of the thiacalix[4]arene scaffold is highly dependent on the substituents on the phenolic oxygen atoms. The benzyl derivatives adopt apparently C2-symmetric structures with a strong intramolecular SnOBn coordination, whereas the SiiPr3 derivatives have a distorted thiacalix[4]arene skeleton with relatively weak intramolecular EOSiiPr3 and ES interactions. On the basis of the 119Sn{1H} and 207Pb NMR studies in solution, the tin and lead atoms in the benzyl derivatives are strongly coordinated by the ethereal oxygen atoms, whereas those in the SiiPr3 derivatives are weakly coordinated by the bridging sulfur atoms or ethereal oxygen atoms. The tetrylene complexes of thiacalix[4]arene presented here do not show any isomerization in a temperature range from 20 to 110 °C, which is in sharp contrast to the fact that related diaryloxygermylenes and -stannylenes embedded in calix[4]arene underwent isomerization under heating conditions. This difference could be attributable to the ring size of thiacalix[4]arene larger than that of calix[4]arene.
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Affiliation(s)
- Ryunosuke Kuriki
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27, Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan.
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10
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Carsch KM, DiMucci IM, Iovan DA, Li A, Zheng SL, Titus CJ, Lee SJ, Irwin KD, Nordlund D, Lancaster KM, Betley TA. Synthesis of a copper-supported triplet nitrene complex pertinent to copper-catalyzed amination. Science 2020; 365:1138-1143. [PMID: 31515388 DOI: 10.1126/science.aax4423] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 05/29/2019] [Accepted: 08/13/2019] [Indexed: 01/17/2023]
Abstract
Terminal copper-nitrenoid complexes have inspired interest in their fundamental bonding structures as well as their putative intermediacy in catalytic nitrene-transfer reactions. Here, we report that aryl azides react with a copper(I) dinitrogen complex bearing a sterically encumbered dipyrrin ligand to produce terminal copper nitrene complexes with near-linear, short copper-nitrenoid bonds [1.745(2) to 1.759(2) angstroms]. X-ray absorption spectroscopy and quantum chemistry calculations reveal a predominantly triplet nitrene adduct bound to copper(I), as opposed to copper(II) or copper(III) assignments, indicating the absence of a copper-nitrogen multiple-bond character. Employing electron-deficient aryl azides renders the copper nitrene species competent for alkane amination and alkene aziridination, lending further credence to the intermediacy of this species in proposed nitrene-transfer mechanisms.
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Affiliation(s)
- Kurtis M Carsch
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Ida M DiMucci
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA
| | - Diana A Iovan
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Alex Li
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Shao-Liang Zheng
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Charles J Titus
- Department of Physics, Stanford University, Stanford, CA, USA
| | - Sang Jun Lee
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Kent D Irwin
- Department of Physics, Stanford University, Stanford, CA, USA.,SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Dennis Nordlund
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Kyle M Lancaster
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA.
| | - Theodore A Betley
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA.
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11
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Takeuchi K, Tanaka Y, Tanigawa I, Ozawa F, Choi JC. Cu(i) complex bearing a PNP-pincer-type phosphaalkene ligand with a bulky fused-ring Eind group: properties and applications to FLP-type bond activation and catalytic CO 2 reduction. Dalton Trans 2020; 49:3630-3637. [PMID: 32129407 DOI: 10.1039/d0dt00276c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Herein, we report the synthesis of [Cu(Eind2-BPEP)][PF6] (2) (Eind2-BPEP = 2,6-bis(2-Eind-2-phosphaethenyl)pyridine, Eind = 1,1,3,3,5,5,7,7-octaethyl-1,2,3,5,6,7-hexahydro-s-indacen-4-yl), a three-coordinated Cu(i) complex bearing a PNP-pincer-type phosphaalkene ligand with bulky fused-ring Eind groups. The Gutmann-Beckett test revealed that complex 2 is highly Lewis acidic and comparable in strength to B(C6F5)3, which is a relatively strong Lewis acid. In addition, 2 is more Lewis acidic than [Cu(Mes*2-BPEP)][PF6] (3), the analogous complex with less-bulky Mes* instead of Eind groups. DFT calculations using model compounds revealed that the higher Lewis acidity of 2 compared to 3 is not due to the electronic effects of the ligand, but due to a reduction in the LUMO energy caused by the steric effect of the bulky Eind groups. When combined with a tertiary amine, the highly Lewis acidic and bulky 2 exhibits the reactivity of a frustrated Lewis pair (FLP) and can activate hydrogen and phenylacetylene. Complexes 2 and 3 were found to catalyze the hydrogenation and hydrosilylation of CO2 in the presence of DBU under relatively mild conditions.
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Affiliation(s)
- Katsuhiko Takeuchi
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan.
| | - Yuto Tanaka
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Ippei Tanigawa
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Fumiyuki Ozawa
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Jun-Chul Choi
- National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8565, Japan.
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12
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Fujita N, Li L, Lentz N, Konaka S, Kuroda A, Ohno R, Hayakawa N, Tamao K, Madec D, Kato T, Rosas-Sánchez A, Hashizume D, Matsuo T. Comparison of the Chemical Bonding in (Eind)2Ge=E (E = O and S): Synthesis and Characterization of Germanethione Bearing Bulky Eind Groups. CHEM LETT 2020. [DOI: 10.1246/cl.190795] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Naoko Fujita
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Liangchun Li
- Functional Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Nicolas Lentz
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 31062 Toulouse, France
| | - Shigeaki Konaka
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Airi Kuroda
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Ryoma Ohno
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Naoki Hayakawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Kohei Tamao
- Functional Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - David Madec
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 31062 Toulouse, France
| | - Tsuyoshi Kato
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 31062 Toulouse, France
| | - Alfredo Rosas-Sánchez
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tsukasa Matsuo
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
- Functional Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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13
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Hupf E, Kaiser F, Lummis PA, Roy MMD, McDonald R, Ferguson MJ, Kühn FE, Rivard E. Linking Low-Coordinate Ge(II) Centers via Bridging Anionic N-Heterocyclic Olefin Ligands. Inorg Chem 2020; 59:1592-1601. [PMID: 31247823 DOI: 10.1021/acs.inorgchem.9b01449] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We introduce a large-scale synthesis of a sterically encumbered N-heterocyclic olefin (NHO) and illustrate the ability of its deprotonated form to act as an anionic four-electron bridging ligand. The resulting multicenter donating ability has been used to link two low oxidation state Ge(II) centers in close proximity, leading to bridging Ge-Cl-Ge and Ge-H-Ge bonding environments supported by Ge2C2 heterocyclic manifolds. Reduction of a dimeric [RGeCl]2 species (R = anionic NHO, [(MeCNDipp)2C═CH]-; Dipp = 2,6-iPr2C6H3) did not give the expected acyclic RGeGeR analogue of an alkyne, but rather ligand migration/disproportionation transpired to yield the known diorganogermylene R2Ge and Ge metal. This process was examined computationally, and the ability of the reported anionic NHO to undergo atom migration chemistry contrasts with what is typically found with bulky monoanionic ligands (such as terphenyl ligands).
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Affiliation(s)
- Emanuel Hupf
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Felix Kaiser
- Catalysis Research Center and Department of Chemistry , Technische Universität München , Lichtenbergstraβe 4 , 85748 Garching bei München , Germany
| | - Paul A Lummis
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Matthew M D Roy
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Robert McDonald
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Michael J Ferguson
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Fritz E Kühn
- Catalysis Research Center and Department of Chemistry , Technische Universität München , Lichtenbergstraβe 4 , 85748 Garching bei München , Germany
| | - Eric Rivard
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
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14
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Shinozaki T, Rosas-Sánchez A, Hashizume D, Ito S. Incomplete Electrocyclization of a Sterically Hindered 1,4-Diphosphabutadiene. Chempluschem 2020; 84:1761-1766. [PMID: 31943877 DOI: 10.1002/cplu.201900632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 10/26/2019] [Indexed: 11/05/2022]
Abstract
Butadiene is the simplest neutral acyclic closed-shell π-conjugated system and is typically sufficiently stable enough to avoid electrocyclization to cyclobutene. In contrast, most congeners of butadiene containing heavier elements are easily converted into the corresponding 4-membered cyclobutene system. Herein, we demonstrate that the gauche 1,4-diphosphabutadiene (P=C-C=P) skeleton in a sterically encumbered 2,3-bis(phosphanylidene)-1,4-disilinane can be remarkably perturbed due to "incomplete electrocyclization" where P=C-C=P partially form the corresponding 1,2-dihydrodiphosphete (3,4-diphosphacyclobutene) by [2+2] electrocyclization. 31 P NMR data obtained in solution indicated that the coexistence of a closed ring substantially reduces the open-ring characteristics of the P=C-C=P moiety. However, the 31 P CP-MAS spectrum of 2,3-bis(phosphanylidene)-1,4-disilinane showed that the P=C-C=P structure is predominant in the solid-state. Single-crystal X-ray analysis revealed that decreasing the temperature promoted the generation of small amounts of incomplete 1,2-dihydrodiphosphete system in the crystalline state. Furthermore, the 1,2-dihydrodiphosphete units disappeared upon warming the single crystal, and this unique solid-state electrocyclization reaction was reversible.
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Affiliation(s)
- Tomokazu Shinozaki
- Department of Chemical Science and Engineering School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-H113, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Alfredo Rosas-Sánchez
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Shigekazu Ito
- Department of Chemical Science and Engineering School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-H113, Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
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15
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Akisaka R, Abe M. Bulky Substituent Effect on Reactivity of Localized Singlet Cyclopentane‐1,3‐diyls with π‐Single Bonding (C‐π‐C) Character. Chem Asian J 2019; 14:4223-4228. [DOI: 10.1002/asia.201901253] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/01/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Rikuo Akisaka
- Department of ChemistryGraduate School of ScieneceHiroshima University 1-3-1 Kagamiyama, Higashi-Hiroshima Hiroshima 739-8526 Japan
| | - Manabu Abe
- Department of ChemistryGraduate School of ScieneceHiroshima University 1-3-1 Kagamiyama, Higashi-Hiroshima Hiroshima 739-8526 Japan
- Hiroshima UniversityResearch Center for Photo-Drug-Delivery System (HiU-P-DDS) 1-3-1 Kagamiyama, Higashi-Hiroshima Hiroshima 739-8526 Japan
- JST-CREST K's Gobancho 6F, 7, Gobancho, Chiyoda-ku Tokyo 102-0075 Japan
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16
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The Construction and Application of C=S Bonds. Top Curr Chem (Cham) 2018; 376:31. [DOI: 10.1007/s41061-018-0209-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 06/24/2018] [Indexed: 01/30/2023]
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17
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Yukimoto M, Minoura M. The Synthesis of a Novel Bulky Primary Alkyl Group and Its Application toward the Kinetic Stabilization of a Tetraalkyldisilene. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20170422] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Mariko Yukimoto
- Department of Chemistry, College of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Mao Minoura
- Department of Chemistry, College of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
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18
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Yukimoto M, Nishino R, Suzuki F, Ishihara M, Sugamata K, Minoura M. Synthesis of a Peripherally Extended Triptycyl Group as an Aliphatic Steric Protection Group and Its Application to the Kinetic Stabilization of an Aliphatic Sulfenic Acid. CHEM LETT 2018. [DOI: 10.1246/cl.171230] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Mariko Yukimoto
- Department of Chemistry, College of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Ryohei Nishino
- Department of Chemistry, College of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Fumiaki Suzuki
- Department of Chemistry, College of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Michihiro Ishihara
- Department of Chemistry, College of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Koh Sugamata
- Department of Chemistry, College of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Mao Minoura
- Department of Chemistry, College of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
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19
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Suzuki K, Numata Y, Fujita N, Hayakawa N, Tanikawa T, Hashizume D, Tamao K, Fueno H, Tanaka K, Matsuo T. A stable free tetragermacyclobutadiene incorporating fused-ring bulky EMind groups. Chem Commun (Camb) 2018; 54:2200-2203. [PMID: 29354837 DOI: 10.1039/c7cc09443d] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first free cyclobutadiene (CBD) germanium analogue was obtained as room-temperature stable dark red crystals via the reaction of the bulky EMind-substituted 1,2-dichlorodigermene with lithium naphthalenide. The cyclic 4π-electron antiaromaticity is essentially stabilized by the polar Jahn-Teller distortion in the germanium CBD producing a planar rhombic-shaped charge-separated structure.
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Affiliation(s)
- Katsunori Suzuki
- Functional Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute (ASI), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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20
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Synthesis and Characterization of N-Heterocyclic Carbene-Coordinated Silicon Compounds Bearing a Fused-Ring Bulky Eind Group. INORGANICS 2018. [DOI: 10.3390/inorganics6010030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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21
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Matsuo T, Hayakawa N. π-Electron systems containing Si=Si double bonds. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2018; 19:108-129. [PMID: 29467912 PMCID: PMC5814778 DOI: 10.1080/14686996.2017.1414552] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 12/05/2017] [Accepted: 12/05/2017] [Indexed: 06/08/2023]
Abstract
Sterically large substituents can provide kinetic stabilization to various types of low-coordinate compounds. For example, regarding the chemistry of the group 14 elements, since West et al. introduced the concept of kinetic protection of the otherwise highly reactive Si=Si double bond by bulky mesityl (2,4,6-trimethylphenyl) groups in 1981, a number of unsaturated compounds of silicon and its group homologs have been successfully isolated by steric effects using the appropriate large substituents. However, the functions and applications of the Si-Si π-bonds consisting of the 3pπ electrons on the formally sp2-hybridized silicon atoms have rarely been explored until 10 years ago, when Scheschkewitz and Tamao independently reported the model systems of the oligo(p-phenylenedisilenylene)s (Si-OPVs) in 2007. This review focuses on the recent advances in the chemistry of π-electron systems containing Si=Si double bonds, mainly published in the last decade. The synthesis, characterization, and potential application of a variety of donor-free π-conjugated disilene compounds are described.
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Affiliation(s)
- Tsukasa Matsuo
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, Osaka, Japan
| | - Naoki Hayakawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, Osaka, Japan
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22
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Hayakawa N, Sugahara T, Numata Y, Kawaai H, Yamatani K, Nishimura S, Goda S, Suzuki Y, Tanikawa T, Nakai H, Hashizume D, Sasamori T, Tokitoh N, Matsuo T. 1,2-Dihalodigermenes bearing bulky Eind groups: synthesis, characterization, and conversion to halogermylenoids. Dalton Trans 2018; 47:814-822. [PMID: 29250632 DOI: 10.1039/c7dt03819d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present the transformation of low-coordinate germanium(ii) compounds.
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23
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Khachatryan AN, Tamazyan RA, Aivazyan AS, Danagulyan GG, Attaryan OS. Complex formation of PdCl2 with 1-substituted 3,5-dimethylpyrazoles. RUSS J COORD CHEM+ 2017. [DOI: 10.1134/s1070328417110045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Komiyama M, Yoshimoto K, Sisido M, Ariga K. Chemistry Can Make Strict and Fuzzy Controls for Bio-Systems: DNA Nanoarchitectonics and Cell-Macromolecular Nanoarchitectonics. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2017. [DOI: 10.1246/bcsj.20170156] [Citation(s) in RCA: 238] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Makoto Komiyama
- World Premier International (WPI) Research Centre for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044
- Life Science Center of Tsukuba Advanced Research Alliance, University of Tsukuba, 1-1-1 Ten-noudai, Tsukuba, Ibaraki 305-8577
| | - Keitaro Yoshimoto
- Department of Life Sciences, Graduate School of Arts and Science, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902
| | - Masahiko Sisido
- Professor Emeritus, Research Core for Interdisciplinary Sciences, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530
| | - Katsuhiko Ariga
- World Premier International (WPI) Research Centre for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-0827
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25
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Hayakawa N, Nishimura S, Kazusa N, Shintani N, Nakahodo T, Fujihara H, Hoshino M, Hashizume D, Matsuo T. π-Conjugation between a Si═Si Double Bond and Thiophene Rings: Synthesis, Structural Characteristics, and Photophysical Properties of 1,2-Bis(thiophen-2-yl)disilene and 1,2-Bis(2,2′-bithiophen-5-yl)disilene. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00370] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Naoki Hayakawa
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Shogo Nishimura
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Nobuhiro Kazusa
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Nozomu Shintani
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Tsukasa Nakahodo
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Hisashi Fujihara
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Manabu Hoshino
- Materials
Characterization Support Unit, RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- Materials
Characterization Support Unit, RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tsukasa Matsuo
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
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26
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Nesterov V, Breit NC, Inoue S. Advances in Phosphasilene Chemistry. Chemistry 2017; 23:12014-12039. [DOI: 10.1002/chem.201700829] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Vitaly Nesterov
- Department of Chemistry; Institute of Silicon Chemistry and Catalysis Research Center Technische Universität München; Lichtenbergstr. 4 85748 Garching Germany
| | - Nora C. Breit
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 115 10623 Berlin Germany
| | - Shigeyoshi Inoue
- Department of Chemistry; Institute of Silicon Chemistry and Catalysis Research Center Technische Universität München; Lichtenbergstr. 4 85748 Garching Germany
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27
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Otani T, Miyoshi M, Shibata T, Matsuo T, Hashizume D, Tamao K. Thermally Stable Monosubstituted Thiophene 1-Oxide and 1-Imides Stabilized by a Bulky Rind Group at Their 3-Position: Synthesis, Structure, and Inversion Barriers on the Sulfur Atom. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2017. [DOI: 10.1246/bcsj.20170042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Takashi Otani
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555
- Functional Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198
- Course of Chemical Engineering, National Institute of Technology, Anan College, 265 Aoki Minobayashi, Anan, Tokushima 774-0017
| | - Mayu Miyoshi
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555
| | - Takanori Shibata
- Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555
| | - Tsukasa Matsuo
- Functional Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502
| | - Daisuke Hashizume
- Materials Characterization Support Unit, RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198
| | - Kohei Tamao
- Functional Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198
- RIKEN Global Research Cluster, 2-1 Hirosawa, Wako, Saitama 351-0198
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28
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Hayakawa N, Sadamori K, Tsujimoto S, Hatanaka M, Wakabayashi T, Matsuo T. Cleavage of a P=P Double Bond Mediated by N-Heterocyclic Carbenes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701201] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Naoki Hayakawa
- Department of Applied Chemistry; Faculty of Science and Engineering; Kindai University; 3-4-1 Kowakae, Higashi-Osaka Osaka 577-8502 Japan
| | - Kazuya Sadamori
- Department of Applied Chemistry; Faculty of Science and Engineering; Kindai University; 3-4-1 Kowakae, Higashi-Osaka Osaka 577-8502 Japan
| | - Shota Tsujimoto
- Department of Applied Chemistry; Faculty of Science and Engineering; Kindai University; 3-4-1 Kowakae, Higashi-Osaka Osaka 577-8502 Japan
| | - Miho Hatanaka
- Department of Chemistry; Faculty of Science and Engineering; Kindai University; 3-4-1 Kowakae, Higashi-Osaka Osaka 577-8502 Japan
- PRESTO (Japan) Science and Technology Agency (JST); 4-1-8 Honcho, Kawaguchi Saitama 332-0012 Japan
- Present address: Graduate School of Materials Science and Institute for Research Initiatives; Nara Institute of Science and Technology; 8916-5 Takayama-cho, Ikoma Nara 630-0192 Japan
| | - Tomonari Wakabayashi
- Department of Chemistry; Faculty of Science and Engineering; Kindai University; 3-4-1 Kowakae, Higashi-Osaka Osaka 577-8502 Japan
| | - Tsukasa Matsuo
- Department of Applied Chemistry; Faculty of Science and Engineering; Kindai University; 3-4-1 Kowakae, Higashi-Osaka Osaka 577-8502 Japan
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29
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Hayakawa N, Sadamori K, Tsujimoto S, Hatanaka M, Wakabayashi T, Matsuo T. Cleavage of a P=P Double Bond Mediated by N-Heterocyclic Carbenes. Angew Chem Int Ed Engl 2017; 56:5765-5769. [PMID: 28429503 DOI: 10.1002/anie.201701201] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Indexed: 11/06/2022]
Abstract
The reaction of the bulky diphosphenes (Rind)P=P(Rind) (1; Rind=1,1,3,3,5,5,7,7-octa-R-substituted s-hydrindacen-4-yl) with two molecules of N-heterocyclic carbene (NHC; 1,3,4,5-tetramethylimidazol-2-ylidene) resulted in the quantitative formation of the NHC-bound phosphinidenes NHC→P(Rind) (2), along with the cleavage of the P=P double bond. The reaction times are dependent on the steric size of the Rind groups (11 days for 2 a (R=Et) and 2 h for 2 b (R=Et, Me) at room temperature). The mechanism for the double bond-breaking is proposed to proceed via the formation of the NHC-coordinated, highly polarized diphospehenes 3 as an intermediate. Approach of a second NHC to 3 induces P-P bond cleavage and P-C bond formation, which proceeds through a transition state with a large negative Gibbs energy change to afford the two molecules of 2, thus being the rate-determining step of the overall reaction with the activation barriers of 80.4 for 2 a and 29.1 kJ mol-1 for 2 b.
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Affiliation(s)
- Naoki Hayakawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka, 577-8502, Japan
| | - Kazuya Sadamori
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka, 577-8502, Japan
| | - Shota Tsujimoto
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka, 577-8502, Japan
| | - Miho Hatanaka
- Department of Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka, 577-8502, Japan.,PRESTO (Japan) Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan.,Present address: Graduate School of Materials Science and Institute for Research Initiatives, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara, 630-0192, Japan
| | - Tomonari Wakabayashi
- Department of Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka, 577-8502, Japan
| | - Tsukasa Matsuo
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka, 577-8502, Japan
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30
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Ariga K, Mori T, Nakanishi W, Hill JP. Solid surface vs. liquid surface: nanoarchitectonics, molecular machines, and DNA origami. Phys Chem Chem Phys 2017; 19:23658-23676. [DOI: 10.1039/c7cp02280h] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Comparisons of science and technology between these solid and liquid surfaces would be a good navigation for current-to-future developments.
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Affiliation(s)
- Katsuhiko Ariga
- World Premier International (WPI) Research Centre for Materials Nanoarchitectonics (MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba 305-0044
- Japan
- Graduate School of Frontier Science
| | - Taizo Mori
- World Premier International (WPI) Research Centre for Materials Nanoarchitectonics (MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba 305-0044
- Japan
| | - Waka Nakanishi
- World Premier International (WPI) Research Centre for Materials Nanoarchitectonics (MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba 305-0044
- Japan
| | - Jonathan P. Hill
- World Premier International (WPI) Research Centre for Materials Nanoarchitectonics (MANA)
- National Institute for Materials Science (NIMS)
- Tsukuba 305-0044
- Japan
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31
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Takeuchi K, Taguchi HO, Tanigawa I, Tsujimoto S, Matsuo T, Tanaka H, Yoshizawa K, Ozawa F. A Square-Planar Complex of Platinum(0). Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609515] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Katsuhiko Takeuchi
- International Research Center for Elements Science (IRCELS); Institute for Chemical Research & IRCCS; Kyoto University; Uji Kyoto 611-0011 Japan
| | - Hiro-omi Taguchi
- International Research Center for Elements Science (IRCELS); Institute for Chemical Research & IRCCS; Kyoto University; Uji Kyoto 611-0011 Japan
| | - Ippei Tanigawa
- International Research Center for Elements Science (IRCELS); Institute for Chemical Research & IRCCS; Kyoto University; Uji Kyoto 611-0011 Japan
| | - Shota Tsujimoto
- Department of Applied Chemistry; Faculty of Science and Engineering; Kindai University; Higashi-Osaka Osaka 577-8502 Japan
| | - Tsukasa Matsuo
- Department of Applied Chemistry; Faculty of Science and Engineering; Kindai University; Higashi-Osaka Osaka 577-8502 Japan
| | - Hiromasa Tanaka
- Institute for Materials Chemistry and Engineering; International Research Center for Molecular Systems & IRCCS; Kyushu University; Nishi-ku Fukuoka 819-0395 Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering; International Research Center for Molecular Systems & IRCCS; Kyushu University; Nishi-ku Fukuoka 819-0395 Japan
| | - Fumiyuki Ozawa
- International Research Center for Elements Science (IRCELS); Institute for Chemical Research & IRCCS; Kyoto University; Uji Kyoto 611-0011 Japan
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32
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Takeuchi K, Taguchi HO, Tanigawa I, Tsujimoto S, Matsuo T, Tanaka H, Yoshizawa K, Ozawa F. A Square-Planar Complex of Platinum(0). Angew Chem Int Ed Engl 2016; 55:15347-15350. [PMID: 27860032 DOI: 10.1002/anie.201609515] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Indexed: 11/09/2022]
Abstract
The Pt0 complex [Pt(PPh3 )(Eind2 -BPEP)] with a pyridine-based PNP-pincer-type phosphaalkene ligand (Eind2 -BPEP) has a highly planar geometry around Pt with ∑(Pt)=358.6°. This coordination geometry is very uncommon for formal d10 complexes, and the Pd and Ni homologues with the same ligands adopt distorted tetrahedral geometries. DFT calculations reveal that both the Pt and Pd complexes are M0 species with nearly ten valence electrons on the metals whereas their atomic orbital occupancies are evidently different from one another. The Pt complex has a higher occupancy of the atomic 6s orbital because of strong s-d hybridization due to relativistic effects, thereby adopting a highly planar geometry reflecting the shape and orientation of the partially unoccupied dx2-y2 orbital.
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Affiliation(s)
- Katsuhiko Takeuchi
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research & IRCCS, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Hiro-Omi Taguchi
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research & IRCCS, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Ippei Tanigawa
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research & IRCCS, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Shota Tsujimoto
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, Higashi-Osaka, Osaka, 577-8502, Japan
| | - Tsukasa Matsuo
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, Higashi-Osaka, Osaka, 577-8502, Japan
| | - Hiromasa Tanaka
- Institute for Materials Chemistry and Engineering, International Research Center for Molecular Systems & IRCCS, Kyushu University, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering, International Research Center for Molecular Systems & IRCCS, Kyushu University, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Fumiyuki Ozawa
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research & IRCCS, Kyoto University, Uji, Kyoto, 611-0011, Japan
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33
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Murosaki T, Kaneda S, Maruhashi R, Sadamori K, Shoji Y, Tamao K, Hashizume D, Hayakawa N, Matsuo T. Synthesis and Structural Characteristics of Discrete Organoboron and Organoaluminum Hydrides Incorporating Bulky Eind Groups. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00633] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Takahiro Murosaki
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Shohei Kaneda
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Ryota Maruhashi
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Kazuya Sadamori
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Yoshiaki Shoji
- Functional
Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute (ASI), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Kohei Tamao
- Functional
Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute (ASI), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- Materials
Characterization Support Unit, RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Naoki Hayakawa
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Tsukasa Matsuo
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
- Functional
Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute (ASI), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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34
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Nagata K, Murosaki T, Agou T, Sasamori T, Matsuo T, Tokitoh N. Activation of Dihydrogen by Masked Doubly Bonded Aluminum Species. Angew Chem Int Ed Engl 2016; 55:12877-80. [PMID: 27529165 DOI: 10.1002/anie.201606684] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Indexed: 11/12/2022]
Abstract
Activation of dihydrogen by masked dialumenes (Al=Al doubly bonded species) is reported. Reactions of barrelene-type dialumanes, which have the reactivity as masked equivalents of 1,2-diaryldialumenes ArAl=AlAr, with H2 afforded dihydroalumanes ArAlH2 at room temperature (Ar: bulky aryl groups). These dihydroalumanes form hydrogen-bridged dimers [ArHAl(μ-H)]2 in the crystalline state, while a monomer-dimer equilibrium was suggested in solution. The 1,2-diaryldialumenes generated from the barrelene-type dialumanes are the putative active species in the cleavage of H2 .
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Affiliation(s)
- Koichi Nagata
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Takahiro Murosaki
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka, 577-8502, Japan
| | - Tomohiro Agou
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan.,Department of Biomolecular Functional Engineering, College of Engineering, Ibaraki University, 4-12-1 Nakanarisawa, Hitachi, Ibaraki, 316-8511, Japan
| | - Takahiro Sasamori
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Tsukasa Matsuo
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka, 577-8502, Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan.
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35
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Nagata K, Murosaki T, Agou T, Sasamori T, Matsuo T, Tokitoh N. Activation of Dihydrogen by Masked Doubly Bonded Aluminum Species. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606684] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Koichi Nagata
- Institute for Chemical Research; Kyoto University; Gokasho, Uji Kyoto 611-0011 Japan
| | - Takahiro Murosaki
- Department of Applied Chemistry; Faculty of Science and Engineering; Kindai University; 3-4-1 Kowakae, Higashi-Osaka Osaka 577-8502 Japan
| | - Tomohiro Agou
- Institute for Chemical Research; Kyoto University; Gokasho, Uji Kyoto 611-0011 Japan
- Department of Biomolecular Functional Engineering; College of Engineering; Ibaraki University; 4-12-1 Nakanarisawa, Hitachi Ibaraki 316-8511 Japan
| | - Takahiro Sasamori
- Institute for Chemical Research; Kyoto University; Gokasho, Uji Kyoto 611-0011 Japan
| | - Tsukasa Matsuo
- Department of Applied Chemistry; Faculty of Science and Engineering; Kindai University; 3-4-1 Kowakae, Higashi-Osaka Osaka 577-8502 Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research; Kyoto University; Gokasho, Uji Kyoto 611-0011 Japan
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36
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Kanazawa S, Ohira T, Goda S, Hayakawa N, Tanikawa T, Hashizume D, Ishida Y, Kawaguchi H, Matsuo T. Synthesis and Structural Characterization of Lithium and Titanium Complexes Bearing a Bulky Aryloxide Ligand Based on a Rigid Fused-Ring s-Hydrindacene Skeleton. Inorg Chem 2016; 55:6643-52. [PMID: 27284975 DOI: 10.1021/acs.inorgchem.6b00762] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The bulky aryl alcohols, (Rind)OH (1) [Rind = EMind (a) and Eind (b)], based on the rigid fused-ring 1,1,3,3,5,5,7,7-octa-R-substituted s-hydrindacene skeleton were prepared by the reaction of (Rind)Li with nitrobenzene followed by protonation. The treatment of 1 with (n)BuLi affords the lithium aryloxide dimers [(Rind)OLi(THF)]2 (2) or trimers [(Rind)OLi]3 (3), depending on the employed solvents (THF = tetrahydrofuran). The salt metathesis reaction of [(EMind)OLi(THF)]2 (2a) with TiCl4(THF)2 leads to the formation of the mononuclear diamagnetic mono- and bis(aryloxide) Ti(IV) complexes, [(EMind)O]TiCl3(THF) (4a) and [(EMind)O]2TiCl2 (5a). We also isolated a trace amount of the tris(aryloxide) Ti(IV) complex, [(EMind)O]3TiCl (6a). The reaction between 2a and TiCl3(THF)3 resulted in the isolation of the mononuclear paramagnetic mono- and bis(aryloxide) Ti(III) complexes, [(EMind)O]TiCl2(THF)2 (7a) and [(EMind)O]2TiCl(THF)2 (8a). The discrete monomeric structures of the titanium complexes 4a, 5a, 6a, 7a, and 8a were determined by X-ray crystallography.
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Affiliation(s)
- Shoya Kanazawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University , 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Taishi Ohira
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University , 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Shun Goda
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University , 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Naoki Hayakawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University , 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Tomoharu Tanikawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University , 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Daisuke Hashizume
- Materials Characterization Support Unit, RIKEN Center for Emergent Matter Science , 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yutaka Ishida
- Department of Chemistry, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Hiroyuki Kawaguchi
- Department of Chemistry, Tokyo Institute of Technology , 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan.,Japan Science and Technology Agency, ACT-C , 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Tsukasa Matsuo
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University , 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.,Japan Science and Technology Agency, ACT-C , 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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37
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Goda S, Nikai M, Ito M, Hashizume D, Tamao K, Okazawa A, Kojima N, Fueno H, Tanaka K, Kobayashi Y, Matsuo T. Synthesis and Magnetic Properties of Linear Two-coordinate Monomeric Diaryliron(II) Complexes Bearing Fused-ring Bulky “Rind” Groups. CHEM LETT 2016. [DOI: 10.1246/cl.160216] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shun Goda
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University
| | - Masanori Nikai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University
| | - Mikinao Ito
- Functional Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute (ASI)
| | - Daisuke Hashizume
- Materials Characterization Support Unit, RIKEN Center for Emergent Matter Science (CEMS)
| | - Kohei Tamao
- Functional Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute (ASI)
| | - Atsushi Okazawa
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo
| | - Norimichi Kojima
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo
| | - Hiroyuki Fueno
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University
| | - Kazuyoshi Tanaka
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University
| | - Yoshio Kobayashi
- Department of Applied Physics and Chemistry, The University of Electro-Communications
| | - Tsukasa Matsuo
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University
- Functional Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute (ASI)
- JST, PRESTO
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38
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Taguchi HO, Sasaki D, Takeuchi K, Tsujimoto S, Matsuo T, Tanaka H, Yoshizawa K, Ozawa F. Unsymmetrical PNP-Pincer Type Phosphaalkene Ligands Protected by a Fused-Ring Bulky Eind Group: Synthesis and Applications to Rh(I) and Ir(I) Complexes. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00113] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Hiro-omi Taguchi
- International
Research Center for Elements Science (IRCELS), Institute for Chemical
Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Daichi Sasaki
- International
Research Center for Elements Science (IRCELS), Institute for Chemical
Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Katsuhiko Takeuchi
- International
Research Center for Elements Science (IRCELS), Institute for Chemical
Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Shota Tsujimoto
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kinki University, Higashi-Osaka, Osaka 577-8502, Japan
| | - Tsukasa Matsuo
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kinki University, Higashi-Osaka, Osaka 577-8502, Japan
| | - Hiromasa Tanaka
- Institute
for Materials Chemistry and Engineering, International Research Center
for Molecular Systems, Kyushu University, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute
for Materials Chemistry and Engineering, International Research Center
for Molecular Systems, Kyushu University, Nishi-ku, Fukuoka 819-0395, Japan
| | - Fumiyuki Ozawa
- International
Research Center for Elements Science (IRCELS), Institute for Chemical
Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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39
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Hayakawa N, Morimoto T, Takagi A, Tanikawa T, Hashizume D, Matsuo T. Synthesis and Structures of Sterically Congested Diarylsilanes Bearing Two Bulky Rind Groups. CHEM LETT 2016. [DOI: 10.1246/cl.151191] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Naoki Hayakawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University
| | - Tatsuto Morimoto
- Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University
| | - Akihiro Takagi
- Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University
| | - Tomoharu Tanikawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University
| | - Daisuke Hashizume
- Materials Characterization Support Unit, RIKEN Center for Emergent Matter Science
| | - Tsukasa Matsuo
- Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University
- JST, PRESTO
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40
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Kobayashi M, Hayakawa N, Matsuo T, Li B, Fukunaga T, Hashizume D, Fueno H, Tanaka K, Tamao K. (Z)-1,2-Di(1-pyrenyl)disilene: Synthesis, Structure, and Intramolecular Charge-Transfer Emission. J Am Chem Soc 2016; 138:758-61. [DOI: 10.1021/jacs.5b11970] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Megumi Kobayashi
- Functional
Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute, 2-1
Hirosawa, Wako, Saitama 351-0198, Japan
| | - Naoki Hayakawa
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kinki University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan
| | - Tsukasa Matsuo
- Functional
Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute, 2-1
Hirosawa, Wako, Saitama 351-0198, Japan
- Department
of Applied Chemistry, Faculty of Science and Engineering, Kinki University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan
- JST, PRESTO, 4-1-8 Honcho
Kawaguchi, Saitama 332-0012, Japan
| | - Baolin Li
- Functional
Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute, 2-1
Hirosawa, Wako, Saitama 351-0198, Japan
| | - Takeo Fukunaga
- Materials
Characterization Support Unit, RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- Materials
Characterization Support Unit, RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Hiroyuki Fueno
- Department
of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazuyoshi Tanaka
- Department
of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kohei Tamao
- Functional
Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute, 2-1
Hirosawa, Wako, Saitama 351-0198, Japan
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41
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Li L, Matsuo T, Hashizume D, Fueno H, Tanaka K, Tamao K. Coplanar Oligo(p-phenylenedisilenylene)s as Si═Si Analogues of Oligo(p-phenylenevinylene)s: Evidence for Extended π-Conjugation through the Carbon and Silicon π-Frameworks. J Am Chem Soc 2015; 137:15026-35. [PMID: 26560247 DOI: 10.1021/jacs.5b10113] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A series of oligo(p-phenylenedisilenylene)s (Si-OPVs 1-4), silicon analogues of oligo(p-phenylenevinylene)s, up to the tetramer have been synthesized and isolated by the introduction of a newly developed protecting group [(HexO)MEind] for improving their solubility. The experimental and theoretical studies of the Si-OPVs 1-4 demonstrate the fully extended π-conjugation of the Si-OPV main chains. Single crystal X-ray analyses of the monomer 1 and the dimer 2 revealed the highly coplanar Si-OPV backbones facilitating the effective extension of the π-conjugation, which has further been validated by the significant increases in the absorption maxima from 465 nm for the monomer 1 to 610 nm for the tetramer 4. The absorption maxima exhibit an excellent fit to Meier's equation, leading to the estimation of an effective conjugation length (ECL) of 9 repeat units (nECL = 9) and the absorption maximum of 635 nm for the infinite chain (λ∞ = 635 nm). In sharp contrast to other nonemissive disilenes, the Si-OPVs 2-4 show an intense fluorescence from 613 to 668 nm at room temperature with the quantum yields up to 0.48. All the data presented here provide the first evidence for the efficient extended π-conjugation between the Si═Si double bonds and the carbon π-electron systems over the entire Si-OPV skeleton. This study reveals the possibility for developing the conjugated disilene π-systems, in which the Si═Si double bonds would be promising building blocks, significantly optimizing the intrinsic photophysical and electrochemical properties of the carbon-based π-conjugated materials.
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Affiliation(s)
- Liangchun Li
- Functional Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tsukasa Matsuo
- Functional Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.,JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Daisuke Hashizume
- Materials Characterization Support Unit, RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Hiroyuki Fueno
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University , Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazuyoshi Tanaka
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University , Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kohei Tamao
- Functional Elemento-Organic Chemistry Unit, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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