A new polyoxovanadium supramolecular complex [(N(CH2CH2NH3)3)2(V6O18)]·3H2O: Synthesis, structure, and thermal properties

被引:0
作者
J. Li
Y. H. Xing
M. F. Ge
C. G. Wang
Z. P. Li
S. Y. Niu
机构
[1] Liaoning Normal University,College of Chemistry and Chemical Engineering
[2] Chinese Academy of Sciences,Institute of Chemistry
来源
Journal of Structural Chemistry | 2009年 / 50卷
关键词
polyoxovanadate complex; hydrogen bonds; tris(2-aminoethyl)amine; tren; crystal structure;
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摘要
A new polyoxovanadium supramolecular complex, [(N(CH2CH2NH3)3)2(V6O18)]·3H2O (1), was synthesized as a crystalline product from aqueous solution at room temperature. From single crystal X-ray structural analysis, the complex is monoclinic, space group P21/n, with a = 15.878(2) Å,b = 11.3309(15) Å, c = 19.469(3) Å, β = 102.244(2)°, V = 3423.0(8) Å3, Z = 4, final R = 0.0469. The crystal structure comprises 1D spiral vanadate chain as the oxide moiety, doubly protonated cations of tris(2-aminoethyl)amine (tren) and three lattice molecules of water. There are numerous H bonds in the structure connecting the polyoxovanadium anion moiety, protonated tren cation and lattice water molecules; the average O...O and N...O distances are 2.753 Å for O-H...O and 2.879 Å for N-H...O, respectively.
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页码:532 / 538
页数:6
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