Multiple structures in supramolecular solids:: Benzophenone embedded in three different C-methylcalix[4]resorcinarene/bipyridine frameworks

被引：40

作者：

Ma, BQ ^{[1
]}

Zhang, YG ^{[1
]}

Coppens, P ^{[1
]}

机构：

[1] SUNY Buffalo, Dept Chem, Buffalo, NY 14260 USA

来源：

CRYSTAL GROWTH & DESIGN | 2001年 / 1卷 / 04期

关键词：

D O I：

10.1021/cg015516o

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Three different supramolecular frameworks based on C-methylealix[4]resorcinarene (CMCR) and 4,4'-bipyridine are described. All contain benzophenone molecules as guests and are prepared by almost identical hydrothermal procedures, indicating that variations during the cooling process, rather than templating, can lead to different phases. The benzophenone molecules show significantly different conformations, with energies calculated to be 10-17 kJ/Mol higher than that of the isolated benzophenone molecule. CMCR exhibits chair, boat, and crown-like conformations in the three solid phases.

引用

页码：271 / 275

页数：5

共 16 条

[1]

Coppens P., 1997, Synchrotron Radiat. News, V10, P26

[2] Crystal engineering using polyphenols.: Host-guest behaviour of planar ribbons in C-methylcalix[4]resorcinarene-4,4′-trimethylene-dipyridine-methanol (1/2/0.5), and capture of 2,2′-bipyridyl molecules by paired calixarene bowls in C-methylcalix[4]resorcinarene-2,2′-bipyridyl-methanol-water (1/1/1/1.16) [J].