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1
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Affiliation(s)
- Vipin B. Kumar
- School of Chemical SciencesUniversity of Auckland 23 Symonds Street Auckland 1010 New Zealand
| | - Erin M. Leitao
- School of Chemical SciencesUniversity of Auckland 23 Symonds Street Auckland 1010 New Zealand
- The MacDiarmid Institute for Advanced Materials and Nanotechnology Wellington New Zealand
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2
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Naito M, Nakamura M, Terao K, Kawabe T, Fujiki M. Monovalent Anion Indicator Based on Fluorescence Quenching of Helical Fluorinated Poly(dialkylsilanes). Macromolecules 2010. [DOI: 10.1021/ma1011304] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Masanobu Naito
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192 Japan
- PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama, Japan
| | - Masashi Nakamura
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192 Japan
| | - Ken Terao
- Department of Macromolecular Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Takuma Kawabe
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192 Japan
| | - Michiya Fujiki
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192 Japan
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3
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Wang WZ, Fan QL, Cheng F, Zhao P, Huang W. Sonochemical synthesis of novel blue-emissive, water-soluble, cationic polysilanes as fluorescent sensors. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/pola.21457] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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4
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Fogarty HA, Imhof R, Michl J. Magnetic circular dichroism of peralkylated tetrasilane conformers. Proc Natl Acad Sci U S A 2004; 101:10517-22. [PMID: 15249672 PMCID: PMC489969 DOI: 10.1073/pnas.0403209101] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Magnetic circular dichroism (MCD) of five peralkylated tetrasilanes (1-5) conformationally constrained to angles ranging from nearly 0 degrees to 180 degrees and of the open chain tetrasilane Si(4)Me(10) (6) shows a clear conformational dependence and permits the detection of previously hidden transitions. In the tetrasilane CH(2)Si(4)Me(8) (1), with the smallest dihedral angle, comparison of MCD with absorption spectra reveals four low-energy electronic transitions. In the tetrasilanes 2-4, three distinct transitions are apparent. In tetrasilanes 5 and 6, MCD reveals the very weak transition that has been predicted to be buried under the first intense peak and to which the anomalous thermochromism of 6 and other short-chain oligosilanes has been attributed.
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Affiliation(s)
- Heather A Fogarty
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80309-0215, USA
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5
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Saxena A, Fujiki M, Naito M, Okoshi K, Kwak G. Novel Molecular Weight and Solvatochromisms in Poly(methyl-3,3,3-trifluoropropylsilane) Induced by Cooperative Through-Space Si···F−C Interactions. Macromolecules 2004. [DOI: 10.1021/ma049546m] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anubhav Saxena
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan, and CREST-JST (Japan Science and Technology Corporation), 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
| | - Michiya Fujiki
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan, and CREST-JST (Japan Science and Technology Corporation), 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
| | - Masanobu Naito
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan, and CREST-JST (Japan Science and Technology Corporation), 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
| | - Kento Okoshi
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan, and CREST-JST (Japan Science and Technology Corporation), 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
| | - Giseop Kwak
- Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0101, Japan, and CREST-JST (Japan Science and Technology Corporation), 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
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6
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7
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Direct observation of intra-molecular energy migration in σ-conjugated polymer by femto-second laser flash photolysis. Chem Phys Lett 2002. [DOI: 10.1016/s0009-2614(02)00581-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Koe JR, Motonaga M, Fujiki M, West R. Synthesis and Spectroscopic Characterization of Heteroatom Polysilylenes: Poly(dialkoxysilylene)s and Evidence for Silicon σ−Oxygen n Mixing Interaction. Macromolecules 2001. [DOI: 10.1021/ma000886r] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Julian R. Koe
- NTT Basic Research Laboratories, 3-1 Wakamiya, Morinosato, Atsugi, Kanagawa 243-0198, Japan, and Organosilicon Research Center, Department of Chemistry, University of Wisconsin, 1101 University Ave., Madison, Wisconsin 53706
| | - Masao Motonaga
- NTT Basic Research Laboratories, 3-1 Wakamiya, Morinosato, Atsugi, Kanagawa 243-0198, Japan, and Organosilicon Research Center, Department of Chemistry, University of Wisconsin, 1101 University Ave., Madison, Wisconsin 53706
| | - Michiya Fujiki
- NTT Basic Research Laboratories, 3-1 Wakamiya, Morinosato, Atsugi, Kanagawa 243-0198, Japan, and Organosilicon Research Center, Department of Chemistry, University of Wisconsin, 1101 University Ave., Madison, Wisconsin 53706
| | - Robert West
- NTT Basic Research Laboratories, 3-1 Wakamiya, Morinosato, Atsugi, Kanagawa 243-0198, Japan, and Organosilicon Research Center, Department of Chemistry, University of Wisconsin, 1101 University Ave., Madison, Wisconsin 53706
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9
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Shen J, Chen Y, Cai R, Huang ZE. Covalent incorporation of [70]fullerene into poly( p -methylstyrene) by anionic copolymerization. POLYMER 2000. [DOI: 10.1016/s0032-3861(00)00284-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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11
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Obora Y, Tanaka M. Dehydrocoupling polymerization of arylsilanes with chloro(aryloxy)bis(cyclopentadienyl)zirconium complex catalysts. J Organomet Chem 2000. [DOI: 10.1016/s0022-328x(99)00495-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Radhakrishnan J, Tanigaki N, Kaito A. Electronic energy transfer in compatible blends of poly(di-n-hexylsilane) and poly(methyl-n-propylsilane). POLYMER 1999. [DOI: 10.1016/s0032-3861(98)00368-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Ichikawa T, Koizumi H, Kumagai J. Structure of Conduction Electrons on Polysilanes As Studied by Electron Spin-Echo Envelope Modulation Analysis. J Phys Chem B 1997. [DOI: 10.1021/jp972068f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tsuneki Ichikawa
- Division of Molecular Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo 060, Japan
| | - Hitoshi Koizumi
- Division of Molecular Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo 060, Japan
| | - Jun Kumagai
- Division of Molecular Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo 060, Japan
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14
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SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF A NOVEL AND STARLIKE C 60 (PMS) x (CH 3 ) x COPOLYMER. Eur Polym J 1997. [DOI: 10.1016/s0014-3057(96)00296-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Fujiki M. A Correlation between Global Conformation of Polysilane and UV Absorption Characteristics. J Am Chem Soc 1996. [DOI: 10.1021/ja953835w] [Citation(s) in RCA: 112] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michiya Fujiki
- NTT Basic Research Laboratories Morinosato, Atsugi Kanagawa 243-01, Japan
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16
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Seki T, Tohnai A, Tamaki T, Kaito A. Spectroscopic Observations of Surfactant-Induced Conformational Changes of a Water-Soluble Polysilane. Macromolecules 1996. [DOI: 10.1021/ma960259v] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Takahiro Seki
- Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan, Fine Chemicals Research Center, Catalysts & Chemical Industries Co. Ltd., 1-13 Kitaminato-cho, Wakamatsu-ku, Kitakyushu 808, Japan, and National Institute of Materials and Chemical Research, 1-1 Higashi, Tsukuba, Ibaraki 305, Japan
| | - Atsushi Tohnai
- Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan, Fine Chemicals Research Center, Catalysts & Chemical Industries Co. Ltd., 1-13 Kitaminato-cho, Wakamatsu-ku, Kitakyushu 808, Japan, and National Institute of Materials and Chemical Research, 1-1 Higashi, Tsukuba, Ibaraki 305, Japan
| | - Takashi Tamaki
- Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan, Fine Chemicals Research Center, Catalysts & Chemical Industries Co. Ltd., 1-13 Kitaminato-cho, Wakamatsu-ku, Kitakyushu 808, Japan, and National Institute of Materials and Chemical Research, 1-1 Higashi, Tsukuba, Ibaraki 305, Japan
| | - Akira Kaito
- Research Laboratory of Resources Utilization, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan, Fine Chemicals Research Center, Catalysts & Chemical Industries Co. Ltd., 1-13 Kitaminato-cho, Wakamatsu-ku, Kitakyushu 808, Japan, and National Institute of Materials and Chemical Research, 1-1 Higashi, Tsukuba, Ibaraki 305, Japan
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17
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18
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Plitt HS, Michl J. Conformational effects on σ-conjugation. UV and IR spectra of matrix-isolated trans- and gauche-n-Si4Me10. Chem Phys Lett 1992. [DOI: 10.1016/0009-2614(92)85072-i] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Wallraff GM, Baier M, Diaz A, Miller RD. Fluorescence quenching of poly(methylphenylsilane) in solution. ACTA ACUST UNITED AC 1992. [DOI: 10.1007/bf00696538] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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20
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Models for polysilane high polymers. Room-temperature solution fluorescence quenching in linear Si10Me22, Si16Me34 and poly(methylpropylsilane) by carbon tetrachloride. J Photochem Photobiol A Chem 1992. [DOI: 10.1016/1010-6030(92)85063-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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The solution and solid-state thermochromism of unsymmetrically substituted polysilanes. ACTA ACUST UNITED AC 1991. [DOI: 10.1007/bf00683514] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Balaji V, Michl J. Singlet excitation in polysilanes: Ab initio calculations on oligosilane models. Polyhedron 1991. [DOI: 10.1016/s0277-5387(00)86103-3] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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