Crystal structure of supramolecular complexes formed by 18-crown-6 and cis-anti-cis-dicyclohexano-18-crown-6 (host) with 3,4-diaminofurazane (guest)

被引:8
|
作者
Luboradzki, R
Lipkowski, J
Simonov, YA
Fonari, MS
Ganin, EV
Yavolovskii, AA
机构
[1] MOLDAVIAN ACAD SCI,INST APPL PHYS,KISHINEV 277028,MOLDOVA
[2] ODESSA II MECHNIKOV STATE UNIV,INST ENVIRONM & HUMAN PROTECT,ODESSA 270100,UKRAINE
关键词
18-crown-6; diaminofurazane; crystal structure; host-guest complexes;
D O I
10.1007/BF00709576
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
An X-ray-diffraction study is reported for two molecular complexes containing 3,4-diamino-1,2,5-oxadiazole as guest (G) with 18-crown-6 (18-C-6) and cis-anti-cis-dicyclohexano-18-crown-6 (DCH-6B) as host. Both complexes are of the polymeric-chain structure with the guest molecule bridging two crown neighbours. Complex I: [18-C-6 * G * H2O], 1:1:1, monoclinic, P2(1)/n, a = 8.171(1), b = 15.042(2), c = 16.209(6) Angstrom, beta = 101.15(2)degrees, final R-factor 0.068. Complex II: [DCH-6B * G], 1:1, monoclinic C2/c, a = 21.212(4), b = 9.380(2), c = 13.049(3) A, beta = 108.61(3)degrees, final R 0.047.
引用
收藏
页码:181 / 193
页数:13
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