Supramolecular self-assembly in the crystal structures of methylmercury xanthates, MeHgS(S)COR, R = Et, iPr and CH2Ph

被引：20
|
作者：
Casas, JS
Castellano, EE
Ellena, J
Haiduc, I
Sánchez, A
Semeniuc, RF
Sordo, J
机构：
[1] Univ Sao Paulo, Dept Fis & Informat, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
[2] Univ Santiago Compostela, Dept Quim Inorgan, Fac Farm, E-15706 Santiago, Spain
[3] Univ Babes Bolyai, Dept Chem, Fac Chim, RO-3400 Cluj Napoca, Romania
来源：
INORGANICA CHIMICA ACTA | 2002年 / 329卷 / 01期
基金：
巴西圣保罗研究基金会;
关键词：
methylmercury; xanthates; supramolecular; self-assembly; crystal structures;
D O I：
10.1016/S0020-1693(01)00820-9
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Methylmercury(II) xanthates, MeHgS(S)COR, with R = Et, Pr-i and CH2Ph, form unidimensional, supramolecular self-assembled, tape-like arrays in the solid state, based upon Hg...S intermolecular secondary interactions. In the compounds with R = Et and Pr-i the individual molecules form double chains (tapes) weakly interacting with neighbouring arrays, while the compound with R = CH2Ph forms dimeric units, which are further associated into infinite tapes, not interacting with each other. Primary Hg-S bonds are in the range 2.378(5)-2.391(3) Angstrom, intramolecular Hg...S secondary bonds leading to chelation are in the range 3.179(5)-3.259(3) Angstrom, whereas intermolecular Hg...S secondary interactions cover a broader range, from 3.403(4) to 4.22(1) Angstrom. (C) 2001 Published by Elsevier Science B.V.
引用
收藏
页码：71 / 78
页数：8
相关论文
共 50 条
12345