Conformation control of oligosilanes based on configurationally constrained bicyclic disilane units

Angewandte Chemie - International Edition

Volumn 39, Issue 18, 2000, Pages 3287-3290

  Tamao, Kohei ^a   Tsuji, Hayato ^a   Terada, Masayoshi ^a   Asahara, Masahiro ^a   Yamaguchi, Shigehiro ^a   Toshimitsu, Akio ^a  

^a KYOTO UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

BICYCLO COMPOUND; OLIGOMER; SILANE DERIVATIVE;

ABSORPTION; ARTICLE; CONFORMATION; ENERGY; ISOMERISM; MOLECULAR MODEL; THERMODYNAMICS;

EID: 0034665241     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/1521-3773(20000915)39:18<3287::AID-ANIE3287>3.0.CO;2-Q     Document Type: Article

References (19)

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11. R. Imhof, H. Teramae, J. Michl, Chem. Phys. Lett. 1997, 270, 500.
12. The primary eclipsed conformer corresponds to syn (ω = 0). The conformer with a dihedral angle of ≈ 120 in the Si-Si-Si-Si framework is also eclipsed but has a different eclipsed geometry. Thus we suggest calling this conformation "second-eclipsed".
13. M. Kumada, K. Tamao, T. Takubo, M. Ishikawa, J. Organomet. Chem. 1967, 9, 43.
14. Experimental details for the preparation of all the compounds can be found in the Supporting Information.
15. a) R. J. P. Corriu, C. Guerin, J. J. E. Moreau in The Chemistry of Organic Silicon Compounds (Eds.: S. Patai, Z. Rappoport), Wiley, Chichester, 1989, pp. 305-370;
16. b) R. R. Holmes, Chem. Rev. 1990, 90, 17.
17. Stereospecific substitution with retention of configuration (Ret) is also part of the preparation of 1.
18. Crystallographic data (excluding structure factors) for the structures reported in this paper have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication nos. CCDC-141477 (4), -141479 (11), -141478 (13), -141475 (15), and -141476 (19). Copies of the data can be obtained free of charge on application to CCDC, 12 Union Road, Cambridge CB2 1EZ, UK (fax: (+44) 1223-336-033: e-mail: deposit@ccdc.cam.ac.uk).
19. 2 around the "non-constrained" Si-Si bond is comparable in both the solution and the solid state.