Synthesis, spectroscopic properties, and structures of copper(II) and manganese(II) complexes of pyridine-2,6-dicarboxylate and 1,10-phenanthroline

Abstract

A binuclear copper(II) complex [Cu(PDC)(phen)]₂ · 2CH₃OH · 1.5H₂O (1) and a seven-coordinate manganese(II) complex [Mn(PDC)(phen)₂] · CH₃OH (2) (PDC = pyridine-2,6-dicarboxylate, phen = 1,10-phenanthroline) have been synthesized hydrothermally and characterized by elemental analyses, spectroscopic studies (IR and UV), and single-crystal X-ray diffraction. In 1, the binuclear copper(II) compound consists of two kinds of Cu(II) centers with five- and six-coordination environments by PDC and phen. The two Cu(II) ions are bridged by one PDC. In 2, Mn(II) is seven-coordinate by two phen and one PDC.

Keywords:

• Binuclear copper(II) complex
• UV spectra
• Pyridine-2,6-dicarboxylate
• Seven-coordinate manganese(II) complex

Acknowledgements

This work was supported by the Scientific Research Foundation in Xinjiang Educational Institutions (XJEDU2007S24) and the Young Scholar Science Foundation of Xinjiang Normal University.