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Communication

Synthesis and Structure of a Hexacoordinate Carbon Compound

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Torahiko Yamaguchi^†, Yohsuke Yamamoto ^†, Daisuke Kinoshita^‡, Kin-ya Akiba ^§, Yun Zhang^¶, Christopher A. Reed^¶, Daisuke Hashizume^£ and Fujiko Iwasaki^#

Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima 739-8526, Japan, Department of Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 165-8555, Japan, Research Institute for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 165-8555, Japan, Department of Chemistry, University of California, Riverside, California 92521, Molecular Characterization Team, RIKEN (Institute of Physical and Chemical Research), Wako, Saitama 351-0198, Japan, and Rigaku Corporation, 3-9-12 Matsubara, Akishima, Tokyo 196-8666, Japan

J. Am. Chem. Soc., 2008, 130 (22), pp 6894–6895

DOI: 10.1021/ja710423d

Publication Date (Web): May 7, 2008

†

Hiroshima University.

‡

Faculty of Science and Engineering, Waseda University.

Research Institute for Science and Engineering, Waseda University.

University of California, Riverside.

RIKEN.

Rigaku Corp.

Abstract

In an exploration of six coordination and hypervalence in carbon compounds, steric constraints have been employed to bring four ether O atoms in close proximity to an allenic carbon atom. The dimethylated dication 2 is confirmed to have hexacoordinate carbon by experimental charge density analysis and DFT calculations and is arguably hypervalent.

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Published In Issue June 04, 2008
Article ASAPMay 07, 2008
Received: November 19, 2007

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Communication

Synthesis and Structure of a Hexacoordinate Carbon Compound