Issue 3, 2009
From the journal:

New Journal of Chemistry

A new method for separating the D3 and C2v isomers of C78†

Ai Hong Han,ab   Takatsugu Wakahara,b   Yutaka Maeda,b   Takeshi Akasaka,*b   Mamoru Fujitska,c   Osamu Ito,c   Kazunori Yamamoto,d   Masahiro Kako,e   Kaoru Kobayashif  and  Shigeru Nagasef  

* Corresponding authors

a College of Chemistry and Life Science, Shenyang Normal University, 253 Norther Huanghe Street, Huanggu District, Shenyang, China

b Center for Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba, Japan

c Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan

d Japan Nuclear Fuel Cycle Development Institute, Tokai, Japan

e Department of Applied Physics and Chemistry, The University of Electro-Communications, Chofu, Japan

f Department of Theoretical Studies, Institute for Molecular Science, Okazaki, Japan

Abstract

A new chemical method has been applied to isolate isomers of C78. The photochemical cycloaddition of a mixture of C78(D3) and C78(C2v) with a disilirane affords only the mono-adduct of the C2v isomer of C78. Its counterpart does not give the mono-adduct with a disilirane. The D3 isomer itself and the adduct of the C2v isomer of C78 with a disilirane are easily separated by a HPLC procedure. A facile oxidative desilylation of the adduct takes place, resulting in the formation of pristine C78(C2v). In this context, the separation and isolation of the two isomers of C78 were successfully accomplished by using a silylation–oxidative desilylation process.

Graphical abstract: A new method for separating the D3 and C2v isomers of C78

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Article information

DOI
https://doi.org/10.1039/B808119K
Article type
Paper
Submitted
13 May 2008
Accepted
10 Sep 2008
First published
27 Oct 2008

New J. Chem., 2009,33, 497-500

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A new method for separating the D3 and C2v isomers of C78

A. H. Han, T. Wakahara, Y. Maeda, T. Akasaka, M. Fujitska, O. Ito, K. Yamamoto, M. Kako, K. Kobayashi and S. Nagase, New J. Chem., 2009, 33, 497 DOI: 10.1039/B808119K

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