The rigid isomeric 5-(x-pyridyl)-1H-tetrazole ligands-directed various isopolymolybdate-based compounds: assembly, structures, and properties
Two new isopolymolybdate-based metal–organic complexes, [Cu2(2-ptz)2(Mo4O14)0.5] (1) and [Cu3(OH)2(3-ptz)4(γ-H4Mo8O26)(H2O)4]·10H2O
(2) (2-ptzH = 5-(2-pyridyl)-1H-tetrazole, 3-ptzH = 5-(3-pyridyl)-1H-tetrazole), constructed from isomeric ligands with different N-donor sites were synthesized under hydrothermal conditions. In 1, each [Mo4O14]4− cluster
connected with six neighboring [Mo4O14]4− clusters through six binuclear [Cu2(2-ptz)2]2+ subunits to yield a 2-D layer. In 2, bidentate inorganic [Mo8O26]4− anions link the
trinuclear [Cu3(OH)2(3-ptz)4] clusters to construct a 1-D chain. Adjacent chains connect through Mo–N bonds between the [Mo8O26]4− anions and pyridyl groups from the trinuclear clusters to form a 2-D layer. The effect
of the N-donor sites of the rigid isomeric ligands on the structures of 1 and 2 was discussed. The electrochemical properties and photocatalytic activities of 1 and 2 have also been studied.
Keywords: Polyoxometalate; electrochemical behavior; metal–organic complex; photocatalytic property
Document Type: Research Article
Affiliations: Department of Chemistry, Bohai University, Jinzhou, P.R. China
Publication date: 02 January 2016
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