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Tetrakis(trimethylsilyl)tetrahedrane+

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Contribution from the Institut für Organische Chemie der Justus-Liebig-Universität, D-35392 Giessen, Germany, and Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
Cite this: J. Am. Chem. Soc. 2002, 124, 46, 13819–13826
Publication Date (Web):October 25, 2002
https://doi.org/10.1021/ja020863n
Copyright © 2002 American Chemical Society
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Abstract

Abstract Image

Tetrakis(trimethylsilyl)tetrahedrane 3 has been synthesized upon irradiation of tetrakis(trimethylsilyl)cyclobutadiene 8, which can be prepared either by thermal nitrogen elimination from trimethylsilyl[1,2,3-tris(trimethylsilyl)-2-cycloprop-1-enyl]diazomethane 7 or by mild oxidation of cyclobutadiene dianion 9 with 1,2-dibromoethane. The structural characterization of tetrahedrane 3 has been achieved by X-ray crystallography. The surprising thermal stability of 3 − which is stable up to 300 °C − is discussed.

+

 Small Rings, Part 95. For Part 94, see ref 7.

*

 To whom correspondence should be addressed. E-mail:  (G.M.) [email protected]; (A.S.) [email protected] staff.chem.tsukuba.ac.jp.

 Justus-Liebig-Universität.

 University of Tsukuba.

§

 Present address:  Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan.

Supporting Information Available

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Tables giving the details of the X-ray structure determination, thermal ellipsoid plots, fractional atomic coordinates, anisotropic thermal parameters, bond lengths, and bond angles for 3 (PDF and CIF). This material is available free of charge via the Internet at http://pubs.acs.org.

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