Synthesis,Structure and Magnetic Property of a New Neodymium-Adipate Coordination Polymer with Large Guest Molecules

摘要

Anew lanthanide-adipate coordination polymer,{[Nd_2(ad)_3(H_2O)_4](H_2ad)centre dot 4H_2O}_n(1)(H_2ad=adipic acid),has been hydrothermally synthesized and structurally characterized by X-ray single crystal structure analysis,elemental analysis,infrared spectrum,thermogravimetric analysis and temperature-dependent magnetic susceptibility.The three-dimensional structure of compound 1 is based on edge-sharing NdO_8(H_2O)_2 polyhedron chains,which were interconnected by twisted or extended carbon chains of the adipate ligands in[010]and[001]directions,respectively.The network contains large channels with adipic acid and lattice water acting as guest molecules.Above 50 K,the magnetic susceptibility data of 1 can be fitted to the Curie-Weiss law with theta=-41.0 K and c=3.52 emu Kmol~(-1).