A novel chainlike As-V-O polymer based on a transition metal complex and a dimeric polyoxoanion

作者：Cui, XB; Xu, JQ^*; Meng, H; Zheng, ST; Yang, GY

来源：Inorganic Chemistry, 2004, 43(25): 8005-8009.

DOI：10.1021/ic0492892

• 2-DIMENSIONAL FRAMEWORK
• CRYSTAL-STRUCTURE
• CLUSTERS
• POLYOXOMETALATE
• ORGANIZATION
• CHEMISTRY
• MANGANESE
• SOLIDS

The novel polyoxometalate {[As8V13NiClO41][Ni(en)(2)(H2O)][Ni(en)(2)]}{[Ni(en)(2)(H2O)(2)](0.5)}(.)4H(2)O (1), which is the first example of a chainlike inorganic-organic hybrid polymer based on dimeric polyoxoanions linked by nickel complex fragments, has been synthesized in the system of AS(2)O(3)-V2O5-H2C2O4-en-NiCl(2)(.)6H(2)O-H2O under hydrothermal conditions and characterized by IR, TGA, elemental analysis, single crystal X-ray diffraction, XPS, and magnetic susceptibility studies, respectively. This compound crystallized in the triclinic space group P $(1) over bar $ with a = 13.358(3) Angstrom, b = 14.198(3) Angstrom, c = 19.723(4) Angstrom, alpha = 83.88(3)degrees, beta = 86.04(3)degrees, gamma = 64.66(3)degrees, V = 3360.2(2) Angstrom(3), and Z = 2. Interestingly, the dimeric polyoxoanion contains two {[Ni(en)(2)(H2O)][As8V13NiClO41]} cluster units linked by Ni-O-As bonds and is a Ni-substituted [As8V13NiClO41] cluster supported by [Ni(en)(2)(H2O)] coordination fragment. The chainlike structure consists of {[Ni(en)(2)(H2O)][AS(8)V(13)NiClO(41)]}(2) dimeric polyoxoanions and [Ni(en)21 groups which are linked together through vertexes forming a unique one-dimensional polymer. The study of the magnetic susceptibility of 1 demonstrates the presence of antiferromagnetic interaction in 1.

• 出版日期2004-12-13
• 单位南京大学; 现代配位化学国家重点实验室; 吉林大学; 中国科学院福建物质结构研究所; 结构化学国家重点实验室; 无机合成与制备化学国家重点实验室