邻苯二甲酸单乙酯铜配合物的晶体结构与强反铁磁性(英文)

Crystal Structure and Magnetic Property of a Strong Antiferromagnetic Copper(Ⅱ) Complex with Mono-ethyl Phthalate

Copper(Ⅱ)carboxylates have been extensivelystudied from different points of view because thecarboxylato anions exhibit different bonding

A hydrated tetra-carboxylato-bridged dinuclear -ethyl phthalate or 1,2-benzenedicarboxylate monoethyl diffraction single crystal structure analysis and magnetic paddle-wheel cage structure and the coordination model copper（R） complex [Cu2（mEP）2（H2O）2]2 （1） （mEp is mono ester） has been prepared and characterized by X-ray measurements. This dinuclear complex adopts dimeric around each copper（Ⅱ） atom is square-pyramidal with four oxygen atoms of the carboxylate groups from four different mono-ethyl phthalate ligands and one oxygen atom of water as apical position. The magnetic data for 1 exhibited strong intramolecular antiferromagnetic interaction between the two paramagnetic metal ions with 2J=-315.18 cm^-1. Comparing with other related complexes in structure and magnetic propertity, the main factor which determines the strong antiferromagnetic interaction in the dimeric copper（Ⅱ） carboxylates is the electronic structure of the bridging O-C-O moiety.