A new two-dimensional polyoxoniobate built by Lindqvist-type polyoxoanion and copper coordinated cations K2[Cu(H2O)6]{[Nb6O19][Cu(NH3)]2)•8H2O

被引：8
作者：
Ma, Pengtao [1 ]
Wang, Guan [1 ]
Chen, Guo [1 ]
Wang, Jingping [1 ]
Niu, Jingyang [1 ]
机构：
[1] Henan Univ, Coll Chem & Chem Engn, Inst Mol & Crystal Engn, Kaifeng 475004, Henan, Peoples R China
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2011年 / 997卷 / 1-3期
关键词：
Polyoxoniobate; Lindqvist-type; Synthesis; Crystal structure; STRUCTURAL-CHARACTERIZATION; BUILDING-BLOCKS; CLUSTERS; COMPLEX; ION; HETEROPOLYNIOBATES; DECANIOBATE; HEXANIOBATE; FRAGMENTS; LIGANDS;
D O I：
10.1016/j.molstruc.2011.05.010
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A new two-dimensional (2D) polyoxoniobate K-2[Cu(H2O)(6)]{Nb6O19][Cu(NH3)](2))center dot 8H(2)O (1) has been synthesized by the diffusion method and structurally characterized by elemental analyses, infrared (IR) spectrum, ultraviolet (UV) spectroscopy, X-ray photoelectron spectroscopy (XPS), thermogravimetric (TG) analysis and single crystal X-ray diffraction. Crystal structure analysis reveals that 1 exhibits a novel 21) network architecture constructed from Lindqvist-type [Nb6O19](8-) polyoxoanions and copper coordinated cations. The XPS measurement indicates the oxidation state of Cu ion is +2. Surface photovoltage spectroscopy (SPS) and electric field induced surface photovoltage spectroscopy (EFISPS) measurements indicate that 1 possesses the n-type semiconductor characteristic. (C) 2011 Elsevier B.V. All rights reserved.
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收藏
页码：126 / 130
页数：5
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