Journal
INORGANICA CHIMICA ACTA
Volume 363, Issue 10, Pages 2131-2136Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2010.03.003
Keywords
Molybdovanadate; Dumbbell-like; Capped; Photocatalysis
Categories
Funding
- Postdoctoral station Foundation of Ministry of Education [20060200002]
- Program for Changjiang Scholars and Innovative Research Team in University
- Graduate Student Innovative Foundation of NENU [09SSXT120]
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Self assembly of NaVO3, Na2MoO4 center dot 2H(2)O and NiCl2 center dot 6H(2)O with the assistance of organic liginds under hydrothermal conditions results in two molybdovanadates [Ni(enMe)(2)](4){[Ni(enMe)(2)(H2O)](2)[Ni(enMe)(2)][((VMo8V4)-Mo-V-V-VI O-IV(40))((VO)-O-IV)(2)](2)}center dot 10H(2)O (1) and [Ni(enMe)(2)](5){[Ni(enMe)(2)](2)[((VVMo4Mo4V4)-Mo-VI-V-V O-IV(40))((VO)-O-IV)(4)](2)}center dot 2H(2)O (2), (enMe = 1,2-diaminopropane), which have been characterized by single crystal X-ray diffraction analysis, IR spectroscopy, and elemental analysis. Both of the two compounds exhibit dumbbell-like structures constructed from capped polyoxomolybdovanadates and [Ni(enMe)(2)](2+) complexes. Polyoxoxanion 1 is composed of two bicapped Keggin-type anions [((VMo8V4O40)-Mo-V-O-IV)((VO)-O-IV)(2)](7), one [Ni(enMe)(2)](2+) bridging fragment and two decorated nickel(II) complexes. Polyxoxanion 2 consists of two tetracapped molybdenum-vanadium polyoxoanions [((VMo4Mo4V4)-Mo-V-Mo-VI-V-V O-IV(40))((VO)-O-IV)(4)](7), one [Ni(enMe)(2)](2+) bridging fragment and a nickel(II) decorated fragment. Polyxoxanions 1 and 2 are further linked to form three-dimensional supramolecular networks through extensive hydrogen bonding interactions. In addition, photocatalysis properties of these two compounds have been investigated. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
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