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Indexed by:期刊论文

Date of Publication:2010-09-01

Journal:ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE

Included Journals:SCIE

Volume:636

Issue:11

Page Number:2016-2021

ISSN No.:0044-2313

Key Words:Polyoxometalates; Boron; Imidazole; Hybrid structure; Luminescence

Abstract:Two new hybrid compounds based on polyoxometaloborates, (HIm)(12)[MnBW(11)O(39)H](2)center dot 13H(2)O (1) and (HIm)(Im)[(Im)(4)Zn](2)[BW(12)O(40)]center dot 2H(2)O (2) (Im = imidazole), have been synthesized and characterized by elemental analyses, IR, UV, TG, and single-crystal X-ray diffraction. Compound 1 is made up of [MnBW(11)O(39)H](6)-polyoxoanions, which are coordinatively linked together by terminal oxygen atoms to yield an unprecedented one-dimensional chain that represents the first example of one-dimensional assemblies based on polyoxotungstoborates and transition metal cations. Adjacent inorganic chains are further in close contact by imidazole molecules to form a three-dimensional supramolecular channel framework by strong hydrogen-bonding interactions. Compound 2 exhibits a three-dimensional supramolecular architecture constructed from Keggin-type polyoxoanions [BW(12)O(40)](5) and zinc-imidazole coordination units by strong hydrogen-bonding interactions. Furthermore, both compounds exhibit interesting photoluminescence properties at room temperature.