2,2′-联吡啶-3,3′-二羧酸锰(Ⅱ)配合物的合成、晶体结构及性能研究(英文)

Synthesis,Crystal Structure and Properties of a New Manganese(Ⅱ) Complex with 2,2′-Bipyridine-3,3′-dicarboxylic Acid as a Ligand

以2,2′-联吡啶-3,3′-二羧酸(H2L)和1,10-邻菲啰啉(Phen)为配体合成了一个新的锰(Ⅱ)配合物[Mn(H2O)(L)(Phen)2].(H2O)3。该配合物晶体属单斜晶系,空间群P21/c。在配合物中,中心锰(Ⅱ)离子的配位数是6,处于变形的八面体配位环境中。还测定了标题配合物的磁性,荧光和电化学性能,结果表明:在低温下,配合物有反铁磁性;当激发波长为656 nm时,配合物在682 nm附近有一个宽的荧光发射峰;在循环伏安过程中配合物的电子转移是准可逆的,对应的电极反应是Mn髥/Mn(Ⅱ)。

A new Mn（II） complex [Mn（H2O）（L）（Phen）2] ·（H2O）3 （1）with 2,2＇-bipyridine-3,3＇-dicarboxylic acid （H2L） and 1,10-Phenanthroline （Phen） as ligands has been synthesized. Crystal data for 1 are as follows： monoclinic, space group P21/c. In 1, the central Mn（II） ion is located in a distorted octahedral coordination environment. The magnetic, fluorescence and electrochemical properties of 1 are studied. The results show that 1 has weak antiferromagnetic property at low temperatures, and when the exciting radiation is set at 656 nm, 1 can give off one broad emission band at around 682 nm. The electron transfer is quasi reversible in the electrode reaction, corresponding to Mn（Ⅲ）Mn（Ⅱ）. CCDC： 874919.