A New Metal–Organic Molecular Square Based on Imidazole-4,5-dicarboxylicate

Abstract

A new metal–organic molecular square of imidazole-4,5-dicarboxylic acid (H₃IDC), namely, [Co₄(py)₈(HIDC)₄] (1) was prepared (py = pyridine), and structurally determined by single-crystal X-ray diffraction analysis, IR, and elemental analysis. In compound 1, doubly deprotonated ligands HIDC²⁻ in a bis(chelating) coordination mode of μ-kN,O:kN′,O′ link four Co(II) ions together to form a slightly distorted molecule square. Additionally, the electrochemical property of 1 was also measured.

Keywords:

• Cobalt(II) complex
• electrochemistry
• imidazole-4
• 5-dicarboxylicate complex
• molecular square

Acknowledgments

The authors gratefully acknowledge financial support from the National Natural Science Foundation of China (21271157) and the Foundation and Leading Technology Task of Henan Province (122300410092).