Syntheses and Crystal Structures of Seven-Coordinate (Ethylenediamine-N,N,N′,N′-tetraacetato)aquavanadate(III) Complexes

Syntheses and Crystal Structures of Seven-Coordinate (Ethylenediamine-N,N,N′,N′-tetraacetato)aquavanadate(III) Complexes
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七配位(乙二胺-N,N,N,N-四乙酸)钒酸(III)配合物的合成和晶体结构

DOI:
10.1246/bcsj.64.2629
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发表时间:
1991
影响因子:
4
通讯作者:
H. Ogino
H. Ogino
中科院分区:
化学3区
文献类型:
--
作者:
M. Shimoi;Y. Saito;H. Ogino

文献摘要

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用VCl_3与K_4edta反应,制得K[V(edta)(H_2O)]·2H_2O(1a)。通过使用阳离子交换树脂将该化合物转化成其钠盐和铵盐。Na[V(edta)(H2O)]·3 H2O(1b)和NH 4 [V(edta)(H2O)]·2.5H2O(1c)的晶体结构分析表明,在这两种化合物中,钒原子均为六齿乙二胺四乙酸配体和水配体的三角棱柱结构。晶体数据如下:1b:单斜晶系,P21⁄a,a=17.831(3),B=8.408(1),c=11.595(2)A,β=109.39(1)°,Z=4,R=0.045,6321个反射; 1c:单斜晶系,Aa,a=8.552(1),B=59.948(6),c=7.226(A),β=114.95(1)°,Z=8,R=0.050(6087个反射)。
K[V(edta)(H2O)]·2H2O (1a) was prepared by the reaction of VCl3 with K4 edta. The compound was converted to its sodium and ammonium salts by use of a cation exchange resin. Crystal structure analyses of Na[V(edta)(H2O)]·3H2O (1b) and NH4[V(edta)(H2O)]·2.5H2O (1c) revealed that in both compounds the vanadium atom adopts a capped trigonal-prismatic structures with a hexadentate ethylenediammetetraacetato ligand and an aqua ligand. Crystal data are as follows: 1b: Monoclinic, P21⁄a, a=17.831 (3), b=8.408 (1), c=11.595 (2) A, β=109.39 (1)°, Z=4, R=0.045 for 6321 reflections; 1c: Monoclinic, Aa, a=8.552 (1), b=59.948 (6), c=7.226 (A), β=114.95 (1)°, Z=8, R=0.050 for 6087 reflections.