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
中科院分区:
文献类型:
--
作者:
M. Shimoi;Y. Saito;H. Ogino
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.