Synthesis, Topological Analysis, and Magnetic Properties of one Manganese(II) Coordination Polymer With Acetylenedicarboxylato and 1,3-Bis(4-pyridyl)-propane

Abstract

The title compound [Mn(bpp)₂(C₄O₄)]·H₂O (1) was obtained by reaction of acetylenedicarboxylic acid, fresh MnCO₃ and 1,3-bis(4-pyridyl)propane (bpp) in aqueous ethanol solution under 80°C. The Mn ions are bridged by acetylenedicarboxylate into a 1D zigzag chain, which is interlinked by bpp ligand to generate a 3D six-connected framework with the Schläfli symbol (4⁸·6⁷). The temperature dependence of the magnetic susceptibility of the complex follows the Curie-Weiss law, and the magnetic behavior can be interpreted by means of 1D chain model. The best fit results in J = 0.03(1) cm⁻¹, indicating weak ferromagnetic coupling.

Keywords:

• acetylenedicarboxylic acid
• coordination polymer
• crystal structure
• magnetic properties
• topology

Acknowledgments

This project was supported by the Scientific Research Fund of Ningbo University (Nos. XKL11058 and XYL11005). The honest thanks are also sponsored by K. C. Wong Magna Fund of Ningbo University.