Thiophosphorylated cavitand: structure and affinity towards soft metal ions

被引：23

作者：

Bibal, B

Declercq, JP

Dutasta, JP

Tinant, B

Valade, AGL

机构：

[1] CNRS, UMR 5532, Ecole Normale Super Lyon, Stereochim & Interact Mol, F-69364 Lyon 07, France

[2] Univ Catholique Louvain, Unite Chim Struct & Mechanisms React, B-1348 Louvain, Belgium

来源：

TETRAHEDRON | 2003年 / 59卷 / 31期

关键词：

cavitand; thiophosphorylated ligand; complexation; supramolecular chemistry; X-ray structure;

D O I：

10.1016/S0040-4020(03)00946-3

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The iiii stereoisomer of the tetrathiophosphonate-calix[4]resorcinarene host 1 exhibited excellent extraction properties towards soft metal ions, with a better affinity for Ag+ (91%), than for Tl+ (38%) and Hg2+ (16%). The extraction of other picrate salts (Cu2+, Ni2+, Co2+, Zn2+, Cd2+, Pb2+) was not detected. The stoichiometry and the structure of the Hg2+, Tl+ and Ag+ complexes were studied by NMR in solution and gave respectively 1:1, 1:1 and 1:2 host-guest complexes. The formation of the self-assembled 1(2).(AgPic)(4) complex was independent on the anion and only observed with silver(l) ion. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：5849 / 5854

页数：6

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