Hydrothermal synthesis and crystal structure of a 1-D compound constructed from molybdovanadate clusters [V₂Mo₆O₂₆]⁶⁻ and copper complexes

Abstract

A 1-D organic–inorganic hybrid compound, {Cu(en)₂}[V₂Mo₆O₂₆{Cu(en)₂}₂] · 4H₂O [en = ethylenediamine] (1), was hydrothermally synthesized and characterized by IR, UV spectroscopy, TG/DTA analyses, and single crystal X-ray diffraction. The X-ray crystallography analysis reveals an infinitely extended 1-D chain constructed from a molybdovanadate cluster [V₂Mo₆O₂₆]⁶⁻ as a building unit, two copper(II) complex fragments, {Cu(en)₂}²⁺, as attached groups and a copper(II) fragment, {Cu(en)₂}²⁺, as a bridging group. Each chain links to adjacent chains through weaker secondary Cu–O interactions forming an interesting 3-D supramolecular architecture.

Keywords:

• Molybdovanadate cluster
• Hydrothermal synthesis
• Crystal structure

Acknowledgments

This work was financially supported by the Natural Science Foundation of China, Program for New Century Excellent Talents in University of Henan Province, the Foundation of Education Department of Henan Province, and the Natural Science Foundation of Henan Province.