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Isolation and structure of [HC[CH(SiMe(3))(SnMe(3))](2)](+): a remarkably stable sec-alkyl cation.

Abstract:

The reaction of the tin-substituted propene Me3Sn(R)CHCH=CHR (R = SiMe3) with MCl4 in dichloromethane in the presence of Me3SnCl gives the first examples of isolable sec-alkyl carbocation salts, [HC{CH(R)SnMe3}2]+M2Cl9- (M = Zr, Hf). The compounds are thermally stable and, unlike previously isolated trialkyl carbocations, do not require superacidic media or weakly coordinating anions for stability. The crystal structure and DFT calculations suggest polarization of the Sn substituents and hype...

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Publication status:
Published

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Publisher copy:
10.1021/ja026443f

Authors


Schormann, M More by this author
Garratt, S More by this author
Hughes, DL More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Inorganic Chemistry
Bochmann, M More by this author
Journal:
Journal of the American Chemical Society
Volume:
124
Issue:
38
Pages:
11266-11267
Publication date:
2002-09-05
DOI:
EISSN:
1520-5126
ISSN:
0002-7863
URN:
uuid:3817675c-5ec1-476f-9522-c8f789d160a9
Source identifiers:
38439
Local pid:
pubs:38439
Language:
English

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