Structure and Magnetism of a New Dodecanuclear Cu
<sup>II</sup>
Complex with Acetato and Imidazolato Bridges, Formed by Oxidation of the Chelating Ligand 1,1,7,7‐Tetrakis(imidazol‐2‐yl)‐2,6‐diazaheptane
作者:Yufei Song、Patrick Gamez、Arno F. Stassen、Martin Lutz、Anthony L. Spek、Jan Reedijk
DOI:10.1002/ejic.200300468
日期:2003.11
A novel dodecanuclear copper(II) complex [Cu12(tidhd)4(MeOH)8(CH3COO)8](MeOH)0.8 (Htidhd = 1,1,7,7-tetrakis(imidazol-2-yl)-2,6-diaza-1,6-heptadiene) with imidazolato and acetato bridging ligands was synthesized by reaction of polyimidazole 1,1,7,7-tetrakis(imidazol-2-yl)-2,6-diazaheptane (Htidahp) with copper acetate in a methanol solution. The complex crystallized in the triclinic space group P with
一种新型十二核铜(II)配合物[Cu12(tidhd)4(MeOH)8(CH3COO)8](MeOH)0.8 (Htidhd = 1,1,7,7-四(咪唑-2-基)-2,6通过聚咪唑 1,1,7,7-四(咪唑-2-基)-2,6-二氮杂庚烷 (Htidahp) 与乙酸铜在甲醇溶液。配合物在三斜空间群 P 中结晶,a = 9.1204(1), b = 13.5139(2), c = 27.6925(5), α = 76.8006(6)°, β = 82.8066(7)°, γ9 = 76.45 (9)°, Z = 1。结构分析表明配合物的晶胞在三种不同的配位环境中含有十二个铜(II)离子。该复合物是中心对称的,两个六核单元由两个 μ3-乙酸根阴离子连接 [Cu1-Cu1a 距离为 3.5507(7) A]。通过桥连咪唑配体的磁性超交换相互作用似乎是该复合物中最重要的磁性相互作用。磁化率测量与 6-300