一种基于缺位的[H30(Mo(V)16O32)Ni14(PO4)26O2(OH)4(H2O)8]12-轮的新型钼（V）镍磷酸盐。

A new molybdenum(V) nickel phosphate based on divacant [H30(Mo(V)16O32)Ni14(PO4)26O2(OH)4(H2O)8]12- wheel.

机构信息

Department of Applied Chemistry, Harbin Institute of Technology, Harbin, 150001, PR China.

出版信息

Dalton Trans. 2009 Nov 21(43):9446-51. doi: 10.1039/b905277a. Epub 2009 Sep 17.

PMID:19859600

Abstract

A new molybdenum nickel phosphate, H(2)enNa(4)[Ni(H(2)O)(3)][H(30)(Mo(V)(16)O(32))Ni(14)(PO(4))(26)O(2) (OH)(4)(H(2)O)(8)] x 8 H(2)O 1, has been hydrothermally synthesized and structurally characterized. Compound 1 crystallizes in the monoclinic space group P2(1)/c with a = 18.6118(6) A, b = 20.9879(6) A, c = 22.9360(5) A, beta = 116.678(2) degrees, V = 8005.5(4) A(3) and Z = 2. The polyoxoanion of 1 exhibits an unusual divacant wheel-type cluster in which two {NiO(6)} octahedra are lost from the well-known "saturated" {Mo(16)TM(16)P(26)} wheel. The two vacant sites are occupied by two protonated ethylenediamines (H(2)en) via the strong hydrogen-bonding interactions between the surface O atoms of the polyoxoanions and the amine group derived from the H(2)en ligands. DC susceptibility measurements show that compound 1 exhibits strong antiferromagnetic interactions inside the wheel-type cluster.

摘要

一种新的钼镍磷酸盐，H(2)enNa(4)[Ni(H(2)O)(3)][H(30)(Mo(V)(16)O(32))Ni(14)(PO(4))(26)O(2) (OH)(4)(H(2)O)(8)] x 8 H(2)O 1，已被水热合成并进行了结构表征。化合物 1 结晶于单斜空间群 P2(1)/c，a = 18.6118(6) A，b = 20.9879(6) A，c = 22.9360(5) A，β = 116.678(2)°，V = 8005.5(4) A(3)，Z = 2。1 的多氧阴离子表现出一种不寻常的缺二价轮型簇，其中两个{NiO(6)}八面体从众所周知的“饱和”{Mo(16)TM(16)P(26)}轮中丢失。两个空缺的位置通过多氧阴离子表面 O 原子和来自 H(2)en 配体的胺基之间的强氢键相互作用被两个质子化的乙二胺（H(2)en）占据。直流磁化率测量表明，化合物 1 在轮型簇内表现出强烈的反铁磁相互作用。