Synthesis, structure, and aromaticity of a hoop-shaped cyclic benzenoid [10]cyclophenacene

被引:158
作者
Nakamura, E [1 ]
Tahara, K [1 ]
Matsuo, Y [1 ]
Sawamura, M [1 ]
机构
[1] Univ Tokyo, Dept Chem, Bunkyo Ku, Tokyo 1130033, Japan
关键词
D O I
10.1021/ja029915z
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The first hoop-shaped cyclic benzenoid compounds, [10]cyclophenacene derivatives that contain 40 π electrons, have been synthesized in three or four steps from [60]fullerene by rationally designed chemical modification. The compounds thus synthesized are chemically stable, yellow-colored, luminescent, and EPR-silent. X-ray crystallographic analysis provided high precision structural data sets. On the basis of these results and theoretical investigations, the new cyclic benzenoid molecules were proven to be aromatic. Copyright © 2003 American Chemical Society.
引用
收藏
页码:2834 / 2835
页数:2
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