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ケイ素及びゲルマニウムを鍵元素とする高機能製分子の創出

Research Project

Project/Area Number 08404042
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Organic chemistry
Research InstitutionTohoku University

Principal Investigator

吉良 満夫  東北大学, 大学院・理学研究所, 教授 (40004452)

Co-Investigator(Kenkyū-buntansha) 坂本 健吉  東北大学, 大学院・理学研究所, 助教授 (50187035)
Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥40,300,000 (Direct Cost: ¥40,300,000)
Fiscal Year 1998: ¥4,600,000 (Direct Cost: ¥4,600,000)
Fiscal Year 1997: ¥4,600,000 (Direct Cost: ¥4,600,000)
Fiscal Year 1996: ¥31,100,000 (Direct Cost: ¥31,100,000)
Keywordsシクロトリシレン / シラトリアフルベン / ポリシラン / 安定シリレン / 非経験的分子軌道計算 / テトラシラシクロブテン / 分子内電荷移動発光 / 高分岐ポリマー / 超音速ジェット分光 / ジシレン / ジアミノシリレン / フォトクロミズム / 原子値異性 / テトラシリルエチレン
Research Abstract

平成8年度から10年度までの3年間に、以下のような顕著な成果を挙げることができた。
1.環状不飽和ケイ素化合物の合成、構造と反応研究
(1)初めてのペルシラ環状不飽和化合物として、嵩高いトリアルキルシリル基で安定化されたヘキサキス(トリアルキルシリル)テトラシラシクロブテン(1)の合成に成功した。1と対応するテトラシラビシクロ[1.1.0〕プタン(2)間の速やかな異性化を見出し、その機構を明らかにした。
2)嵩高いトリアルキルシリル基で安定化された初めてのケイ素3員環2重結合分子としてテトラキス(トリアルキルシリル)シクロトリシレンを合成単離した。
(3)いくつかの非対称置換テトラシリルジシレンを合成単離し、ケイ素―ケイ素2重結合周りの回転障壁が著しく低いことを発見した。
(4)テトラシリルジシレンの種々の反応試剤との反応性を明らかにし、特にハロアルカンとの反応機構を詳しく研究し、ジシレンのラジカル反応性を明らかにした。
2.ケイ素―炭素2重結合を含む交差共役分子の合成、構造と反応研究
(1) 最小の含ケイ素交差共役π電子系である4-シラトリアフルベン誘導体の生成・単離に成功し、この系のケイ素―炭素2重結合はアルコールに対する付加反応性が著しく低いことを明らかにした。また、非経験的分子軌道計算によってモデル反応の遷移状態を明らかにした。
3.ジアミノシリレンの2量体を初めて実験的に観測した。理論的予測とは異なり、ケイ素―ケイ索2重結合ダイマーを生成することを確立した。
4.P-シアノフェニルペンタメチルジシランの超音速ジェット分光を行い、TICT型孤立分子として初めて分子として始めて分子内電化移動発光を見出した。
5.シロール環を連結したいくつかのオリゴ-1,1-シロールを合成し、紫外吸収スペクトルの系統的研究を行なった。

Report

(4 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (83 results)

All Other

All Publications (83 results)

  • [Publications] T. Hoshi: "Synchronized fluorine exchange with ring inversion of pentafluro-1, 4-disila-cyclo-hexane anion"Chem. Lett.. 683-684 (1996)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Kira: "Tetrakis(trialkylsilyl) digermense. Salient effects of trialkylsilyl-substituents on planarity around Ge=Ge bond and remarkable thermochromism"Organometallics. 15. 3767-3769 (1996)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Kira: "The first stable cyclic disilene: hexakis(trialkylsilyl) tetrasilacyclobutene"J. Am. Chem. Soc.. 118. 10303-10304 (1996)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] K. Ebihara: "Polysilane-based polymer diodes emitting ultraviolet light"Jpn. J. Appl. Phys.. 35. 1278-1280 (1996)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] K. Ebihara: "Ultraviolet electroluminescence in polysilane thin film"J. Mol. Cryst. Liq. Cryst.. 286. 245-250 (1996)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Kira: "Synthesis and reactions of neutral hypercoordinate allylsilicon compounds having tropolonato ligand"Organometallics. 15. 5335-5341 (1996)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] T. Miyazawa: "Action spectra of non-resonant two-photon (NRTO) isomerization of α, ω-diphenylpolyenes"Chem. Lett.. 1023-1024 (1996)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] K. Skamoto: "Generation and trapping of bis (dialkylamino) silylenes: Experimental evidence for bridged structure of diaminosilylene dimers"Bull. Chem. Soc. Jpn.. 70. 253-260 (1997)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] L. C. Zhang: "Enantioselective allylation of aldehydes using tartrate ester modified allylslanes"Chem. Lett.. 129-130 (1997)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Takahashi: "Atheoretical study of stereochesmistry of 1,3-migration in allylsilane and related allylmetallic compounds"J. Am. Chem. Soc.. 119. 1948-1953 (1997)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Kira: "Thermal ring-opening polymerization of [2.2] paracyclophanes having two disilanylenebridges"Organometallics. 16. 1100-1102 (1997)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] K. Sakamoto: "The first silatriafulvene derivative: unusually low reactivity towards alcohols, and isomerization to silacyclobutadiene"J. Am. Chem. Soc.. 119. 3045-3406 (1997)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] T. Miyazawa: "Selective carbon-bromine bond fission induced by non-resonant two-photon (NRTP) exciation of trans-4 bromostibene"Chem. Lett.. 459-460 (1997)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] T. Miyazawa: "Remarkable suppression of [2+2] cycloaddition during non-resonant two-photon (NRTP) photoreaction of t-stilbene in the presence of tetramethylethylene"Photochm, Photobiol. 66. 566-568 (1997)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] R. West: "A solid-state NMR and theoretical study of the chemical bonding in disilenes"J. Am. Chem. Soc.. 119. 4972-4976 (1997)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y. Tajima: "First observation of intramolecular charge-transfer emission from jet-cooled (p-cyanophenyl)-pentamethyldisilane in an isolated molecular condition"J. Am. Chem. Soc.. 119. 7400-7401 (1997)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] K. Ebihara: "Ultraviolet luminescence and electro-luminescence of poydihexylsilane"J. Lumin.. 72-74. 43-45 (1997)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] K. Obata: "Induction of helical chirality in linear oligosilanes by terminal chiral substituents"J. Am. Chem. Soc.. 119. 11345-11346 (1997)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] S. Tokura: "Novel σ-π alternating polymers having 2,2-biphridyl in the polymer backbone and their ruthenium complexes"Chem. Lett.. 1163-1164 (1997)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] K. Sakamoto: "Preparation of hyperbranched polymethacrylates by self-condensing group transfer polymerization"Chem. Lett.. 1245-1246 (1997)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] K. Kanno: "Synthesis and structure of a series of oligo [1,1-(2,3,4,5-tetramethylsilol)]s"Chem. Lett.. 99-100 (1998)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] T. Miyazawa: "Photodegradation of polysilane polymers by non-resonant two-photon excitation"J. Am. Chem. Soc.. 120. 1084-1085 (1998)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] K. Ebata: "Planar hexasilylbenzene dianion with thermally accessible triplet state"J. Am. Chem. Soc.. 120. 1335-1336 (1998)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] T. Iwamoto: "A mechanistic study of thermal and photochemical isomerization between hexasilyltetttrasilabicyclo-[1.1.0] butane and hexasilyltetrasilacyclobutene"Chem. Lett.. 277-278 (1998)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Kira: "Structure of (Tropolonato)_4M-Type Compounds (M=Si, Ge, and Sn)"Organometallics. 17. 887-892 (1998)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] T. Veszpremi: "An ab initio MO study of structure and reactivity of 4-silatriafulvene"J. Am. Chem. Soc.. 120. 2408-2414 (1998)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y. Tajima: "Microscopic solvation effects on Si-Si bond cleavage reactions of cluster cation radicals of (p-cynophenyl) pentamethyldisilance with hydroxylic molecules"Chem. Lett.. 415-416 (1998)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] K. Mochida: "Photochemical reactions of digermanyl-substituted naphthalenes: The germylmigration to the aromatic ring"J. Organomet. Chem.. 553. 163-171 (1998)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] K. Obata: "Remarkable effects of side-chain alkyl substituents on thermochromic behaviour of peralkyldecasilanes"Chem. Commun.. 1309-1310 (1998)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] K. Obata: "Temperature dependent CD spectra of poly (dihexylsilylene)s with terminal chiral groups. Coupled Cotton effects of silicon σ chains"Macromolecules. 31. 4666-4668 (1998)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] S. Tsutsui: "X-Ray crystallographic analysis of a 3-silacyclopropene with electronegative substituents on silicon"Organometallics. 17. 3819-3821 (1998)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] S. Tsutsui: "Bis(diisopropylamino)-silylene and its dimer"J. Am. Chem. Soc.. 120. 9955-9956 (1998)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Kira: "Persistent tri(t-butyldimethylsilyl) silyl radica and its new generation methods"Chem. Lett.. 1097-1098 (1998)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] T. Iwamoto: "Bimolecular reactions of tetrakis(trialkylsilyl) disilenes with various reagents"Bull. Chem. Soc. Jpn.. 71. 2741-2747

    • Related Report
      1998 Final Research Report Summary
  • [Publications] T. Vszpremi: "Substiuent effects on the structure and aromaticity of 4-silatriafulvene"J. Phys. Chem. (A). 102. 10530-10535 (1998)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] T. Iwamoto: "The first stable cyclotrisilene"J. Am. Chem. Soc.. 121(4). 886-887 (1999)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Kira: "Synthesis and structure of a stable cyclic dialkylgemylene"Chem. Lett.. 203-204 (1999)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] L. C. Zhang: "Retention stereochemistry of thermal 1,3-silyl migration in allylic silanes"J. Am. Chem. Soc.. 121(12). 2925-3936 (1999)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] T. Miyazawa: "Mechanistic studies of photochemical silylene extrusion from 2,2-diaryltrisilanes"J. Am. Chem. Soc.. 121(15). 3651-3656 (1999)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Kira: "The first isolable dialkylsilylene"J. Am. Chem. Soc.. (in press).

    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Takahashi: "Atheoretical study of mechanisms of 1,3-silyl migration in formylmethylsilane and related compounds. Comparison with allylsilane"J. Am. Chem. Soc.. (in press).

    • Related Report
      1998 Final Research Report Summary
  • [Publications] 宮澤貴士: "非線形工学応答を利用した光化学反応制御-非共鳴2光子励起法"応用物理. 66(7). 669-702 (1997)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] M. Kira: "The Chemistry of Oganic Silicon Compounds"John-Wiley. 27 (1998)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] 吉良満夫: "O plus E"株式会社新技術コミュニケーションズ. 6 (1998)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] K.Mochida: "Photochemical reactions of digermanyl-substituted naphthalenes: The germyl migration to the aromatic ring" J.Organomet.Chem.553. 163-171 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Obata: "Remarkable effects of side-chain alkyl substituents on thermochromic behavior of peralkyldecasilanes" Chem.Commun.1309-1310 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Obata: "Temperature dependent CD speactra of poly(dihexylsiylene)s with terminal chiral groups.Coupled cotton effects of silicon σ chains" Macromolecules. 31. 4666-4668 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] S.Tsutsui: "X-Ray crystallographic analysis of a 3-silacyclopropene with electronegative substituents on silicon" Organometallics. 17. 3819-3821 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] S.Tsutsui: "Bis(diisopropylamino)silylene and its dimer" J.Am.Chem.Soc.120. 9955-9956 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Kira: "Persistent tri(t-butyldimethylsilyl)silyl radical and its new generation mehods" Chem.Lett.:1097-1098 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Iwamoto: "Bimolecular reactions of tetrakis(trialkylsilyl)disilenes with various reagents" Bull.Chem.Soc.Jpn.71. 2741-2747 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Veszpremi: "Substituent effects on the structure and aromticity of 4-silatriafulvene" J.Phys.Chem.(A). 102. 10530-10535 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Iwamoto: "The First Stable Cyclotrisilene" J.Am.Chem.Soc.121(4). 886-887 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Kira: "Synthesis and structure of a stable cyclic dialkylgermylene" Chem.Lett.(印刷中).

    • Related Report
      1998 Annual Research Report
  • [Publications] W.Setaka: "An ESR study of a tetrasilaspirobiindane anion radical. Stereoelectronic electron-accepting effects of a trialkylsilyl group" Chem.Lett.(印刷中).

    • Related Report
      1998 Annual Research Report
  • [Publications] L.C.Zhang: "Retention stereochemistry of thermal 1,3-silyl migration in allylic silanes" J.A,Chem.Soc.(印刷中).

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Miyazawa: "Mechanistic studies of photochemiacal silylene extrusion from 2,2-diaryltrisilanes" J.Am.Chem.Soc.(印刷中).

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Obata: "Synthesis,Structure,and Spectroscopic Properties of Perhexyloligosilanes" Organometallics. (印刷中).

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Sanji: "Kinetics of chain organizationat the thermochromic transition of polysilanes" Chem.Lett.255-256 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Sakamoto: "Generation and trapping of bis(dialkylamino)silylenes : Experimental evidence for bridged structure of diaminosilylene dimers" Bull.Chem.Soc.Jpn.70. 253-260 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] L.C.Zhang: "Enantioselective allylation of aldehydes using tartrate ester modified allylsilanes" Chem.Lett.129-130 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Takahashi: "A theoretical study of stereochemistry of 1,3-migration in allylsilane and related allylmetallic compounds" J.Am.Chem.Soc.119. 1948-1953 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Kira: "Thermal ring-opening polymerization of[2.2]paracyclophanes having two disilanylene bridges" Organometallics. 16. 1100-1102 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Sakamoto: "The first silatriafulvene derivative : generation,unusually low reactivity towards alcohols,and isomerization to silacyclobutadiene" J.Am.Chem.Soc.119. 3405-3406 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] R.West: "A solid-state NMR and theoretical study of the chemical bonding in disilenes" J.Am.Chem.Soc.119. 4972-4976 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Tajima: "First observation of intramolecular charge-transfer emission from jet-cooled(p-cyanophenyl)-pentamethyldisilane in an isolated molecular condition" J.Am.Chem.Soc.119. 7400-7401 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Ebihara: "Ultraviolet luminescence and electro-luminescence of polydihexylsilane" J.Lumin.72-74. 43-45 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Obata: "Induction of helical chirality in peralkyloligosilanes by terminal chiral substituents" J.Am.Chem.Soc.119. 11345-11346 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Sakamoto: "Preparation of hyperbranched polymethacrylates by self-condensing group transfer polymerization" Chem.Lett.1245-1246 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Kanno: "Synthesis and structure of a series of oligo[1,1-(2,3,4,5-tetramethylsilol) ]s" Chem.Lett.99-100 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Miyazawa: "Photodegradation of polysilane polymers by non-resonant two-photon excitation" J.Am.Chem.Soc.120. 1084-1085 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Ebata: "Planar hexasilylbenzene dianion with thermally accessible triplet state" J.Am.Chem.Soc.120. 1335-1336 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Iwamoto: "A mechanistic study of thermal and photochemical isomerization between hexasilyltetrasilabicyclo[1,1,0]butane and hexasilyltetrasilacyclobutene" Chem.Lett.277-278 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Kira: "Structure of(Tropolonato)4M-Type Compounds (M=Si,Ge,and Sn)" Organometallics. (印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Veszpremi: "An ab initio MO study of structure and reactivity of 4-silatriafulvene" J.Am.Chem.Soc.(印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Tajima: "Microscopic solvation effects on Si-Si bond cleavage reactions of cluster cation radicals of(p-cyanophenyl)pentamethyldisilane with hydroxylic molecules" Chem.Lett.(印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] T. Hoshi: "Synchronized fluorine exchange with ring inversion of pentafluoro-1, 4-disila-cyclohexane anion" Chem. Lett.683-684 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] M. Kira: "Tetrakis (trialkylsilyl) digermenes. Salient effects of trialkylsilyl-substituents on planarity around Ge=Ge bond and remarkable thermochromism" Organometallics. 15. 3767-3769 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] M. Kira: "The first stable cyclic disilene : hexakis (trialkylsilyl) tetrasilacyclobutene" J. Am. Chem. Soc.118. 10303-10304 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] M. Kira: "Shynthesis and reactions of neutral hypercoordinate allylsilicon compounds having tropolonato ligand" Organometallics. 15. 5335-5341 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] K. Sakamoto: "Generation and trapping of bis (dialkylamino) silylenes : Experimental evidence for bridged structure of diaminosilylene dimers" Bull. Chem. Soc. Jpn.70. 253-260 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] L. C. Zhang: "Enantioselective allylation of aldegydes using tartrate ester modified allylsilanes" Chem. Lett.129-130 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] M. Takahashi: "A theoretical study of stereochemistry of 1, 3-migration in allylsilane and related allylmetallic compounds" J. Am. Chem. Soc.in press (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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