带有水簇(H_2O)_4的四氰合镍配合物的合成与磁性研究(英文)

Synthesis and Magnetic Property of a Novel Tetracyanonickelate(Ⅱ) Complex with Discrete Water Cluster (H_2O)_4

一个四氰合镍配合物{[Ni(i-Pr3TACN)][Ni(CN)4]}2·2H2O(1)通过K2[Ni(CN)4]和[NiPr3TACN]Cl2自组装的方法合成,单晶解析表明其配合物中存在一个由4个分子水组成的水簇。4个水分子在一个平面上,每个水分子即是氢键的给体也是氢键的受体。磁化率测定表明配合物中Ni(Ⅱ)间为反铁磁作用且J值为-1.09 cm-1.

A tetracyanonickelate-nickel complex {[Ni（i-Pr3TACN）][Ni（CN）4]}2·2H2O （1） has been synthesized by self- assembly using K2[Ni（CN）4] and [NiPr3TACN]C12, （i-Pr3TACN=1,4, 7-Triisopropyl-l,4,7-Triazacyclononane）. The X- ray character shows there is a discrete tetramer water clusters in 1. Within the cluster, the four water molecules are fully coplanar and each water monomer acts as both single hydrogen bond donor and acceptor. The magnetic susceptibility shows an antiferromagnetic interaction between the Ni（Ⅱ） ions and the J values is -1.09 cm-1. CCDC： 727702.