Mono- and dinuclear copper(I) complexes with methyl-substituted pyrimidinethiones

被引:14
作者
Falcomer, VAS
Lemos, SS [1 ]
Batista, AA
Ellena, J
Castellano, EE
机构
[1] Univ Brasilia, Inst Quim, BR-70904970 Brasilia, DF, Brazil
[2] Univ Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil
[3] Univ Sao Paulo, Inst Fis, BR-13560970 Sao Carlos, SP, Brazil
关键词
methyl-substituted pyrimidinethiones; mono- and dinuclear copper(I) complexes; copper(I)-hydrogen interactions; X-ray crystal structure; model complexes;
D O I
10.1016/j.ica.2005.11.026
中图分类号
O61 [无机化学];
学科分类号
070301 [无机化学]; 081704 [应用化学];
摘要
The reaction of 4,6-dimethylpyrimidine-2(1H)-thione (dmpymtH) or its corresponding N-methylated form (dmpymt-NMe) with the parent complex [Cu(MeCN)(4)][BF4] (1) affords the mono- and dinuclear copper(I) complexes [Cu(dmpymt-NMe)(3)][BF4] (2) and [Cu(dmpymtH)(3)](2)[BF4]2 (center dot) 2H(2)O (3), respectively. The reaction Of Cu2O and the hydrochloride salt of dmpymtH gives the dinuclear complex [CuCl(dmpymtH)(2)](2) (4). The X-ray crystal structure reveals that 2 is coordinatively unsaturated and weak intermolecular interactions between Cu(I) and H atoms from methyl groups are involved. The complexes 3 and 4 are dinuclear in the solid state in which the copper atoms adopt distorted tetrahedral geometry. In both cases, the neutral dmpymtH is acting as a bridging ligand. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:1064 / 1070
页数:7
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