The NHR2/CO2 system as a metal ion extraction reagent from aqueous solution into hydrocarbons:: copper(II) and zinc(II)

被引：35

作者：

Dell'Amico, DB ^{[1
]}

Calderazzo, F ^{[1
]}

Farnocchi, S ^{[1
]}

Labella, L ^{[1
]}

Marchetti, F ^{[1
]}

机构：

[1] Univ Pisa, Dipartimento Chim & Chim Ind, I-56126 Pisa, Italy

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2002年 / 5卷 / 10期

关键词：

zinc complexes; copper complexes; carbamato complexes; extraction;

D O I：

10.1016/S1387-7003(02)00588-9

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A substantially quantitative transfer of copper(II) or zinc(II) salts from aqueous solution into a hydrocarbon (heptane or toluene) promptly occurs under carbon dioxide in the presence of a dialkylamine (NHR2, R = Bu, Bz). Recovery of the metal complexes from the organic phase affords copper dialkylcarbamates of the formula Cu(O2CNR2)(2)(NHR2)(2) or mu-oxo tetranuclear zinc carbamato complexes, Zn-4(mu(4)-O)(O2CNR2)(6), respectively, in high yield and purity. An X-ray diffraction study on a single crystal of Cu(O(2)CNBz(2))(2)(NHBz(2))(2) 1 has shown the compound to be mononuclear with tetracoordinated copper in an almost perfect square-planar geometry. The zinc derivative has the well-established oxo-centred tetranuclear structure (R = Bu, 2). (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：848 / 852

页数：5