Molecular structure of bis[(1,3)2-oxaadamantano]-18-crown-6 and its potassium picrato complex

被引:11
|
作者
Mlinaric-Majerski, K [1 ]
Visnjevac, A [1 ]
Kragol, G [1 ]
Kojic-Prodic, B [1 ]
机构
[1] Rudjer Boskovic Inst, Zagreb 10002, Croatia
关键词
bis(2-oxaadamantano)-18-crown-6; conformations; molecular modelling; crystal structure;
D O I
10.1016/S0022-2860(00)00675-X
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The structure of bis[(1,3)2-oxaadamantano]-18-crown-6 (1) and its potassium picrato complex ([1-K](+)(C6H2N3O7)(-);) have been studied by means of NMR-spectroscopy, X-ray structure analysis and molecular mechanics calculations. In the gas phase and in the CDCl3 solution, in both 1 and [1-K](+) the most stable conformation of C-2h symmetry is found. However, in the solid state 1 adopts crystallographic C-i symmetry while its potassium picrato complex exhibits C-l symmetry. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:279 / 287
页数:9
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