rac- and meso-3,3′-bis(3,5-dimethylphenyl)-3H,3′H-2,2′-biindenylidene-1,1′(2H,2′H)-dione

被引：5

作者：

Ohba, S

Yamamoto, Y

Tanaka, K

机构：

[1] Keio Univ, Dept Chem, Kohoku Ku, Yokohama, Kanagawa 2238521, Japan

[2] Ehime Univ, Fac Engn, Dept Appl Chem, Matsuyama, Ehime 7908577, Japan

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 2003年 / 59卷

关键词：

D O I：

10.1107/S0108270103010308

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In the rac isomer of the title compound, C34H28O2, the two C-Ph-dimethylphenyl bond axes make an angle of 58.7 (1)degrees. There is no short contact between the two 3,5-dimethylphenyl rings, although the dihedral angle between them is 4.93 (7)degrees. The meso isomer has a center of symmetry at the middle of the C=C bond, and the two C-Ph-dimethylphenyl bond axes are antiparallel to one another.

引用

页码：O370 / O372

页数：3

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