Release Time:2019-03-09  Hits:

Indexed by: Journal Article

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: 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.