Is peri hydrogen repulsion responsible for flattening buckybowls?: The effect of ring annelation to the rim of corannulene

被引:16
作者
Dinadayalane, TC [1 ]
Deepa, S [1 ]
Sastry, GN [1 ]
机构
[1] Indian Inst Chem Technol, Mol Modelling Grp, Hyderabad 500007, Andhra Pradesh, India
关键词
structure-energy relations; buckybowls; peri interactions; DFT calculations; ring annelation;
D O I
10.1016/S0040-4039(03)01011-6
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
B3LYP/6-31G* calculations indicate that annelation of three-, four-, or five-membered rings to the rim of corannulene results in lowering the bowl-to-bowl inversion barrier and flattens the bowl structure. The role of the peri hydrogen repulsion as a causative factor for such a behavior is disputed, the structure-energy relationships in this class of compounds were shown to fit with a mixed quartic-quadratic potential. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:4527 / 4529
页数:3
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