多价态钼多酸配合物[Mo(Ⅳ)Mo_2(Ⅴ)O_7(Phen)]的晶体结构及性质  

Crystal Structure and Properties of a Multivalent Molybdenum Acid Supramolecular Complex [Mo(Ⅳ)Mo_2(Ⅴ)O_7 Phen]

作　　者：蔡铁军[1] 申晓明[1] 刘建湘[1] 吕数子[1] 彭振山[1] 邓谦[1] 

机构地区：[1]湖南科技大学化学化工学院理论化学与分子模拟省部共建教育部重点实验室,湘潭411201

出　　处：《化学通报》2011年第6期551-556,共6页Chemistry

基　　金：理论化学与分子模拟省部共建教育部重点实验室(教技函[2008]153号)资助

摘　　要：用水热法合成了一种新的多价钼多酸配合物[Mo(Ⅳ)Mo2(Ⅴ)O7(Phen)],并用X射线衍射、元素分析、红外光谱、热重-差热、荧光光谱和磁化率等对其进行了表征。X射线衍射分析表明,配合物晶体属于单斜晶系,P2(1)/c空间群,由十二员环和八员环构成二维网状结构。配合物中强π-π堆积作用构筑成层状三维超分子,稳定了配合物晶体结构。荧光分析表明,配合物在397nm处有1个强发射峰。磁性测试结果表明,在0～300K温度范围内,配合物中自旋基态的Mo原子间仅存在反铁磁相互作用。此外,配合物还具有较高的热稳定性。A novel organic-inorganic hybrid complex [Mo（Ⅳ）Mo2（Ⅴ）O7Phen] with multivalent molybdenum acid had been synthesized by hydrothermal reaction and characterized by single-crystal X-ray diffraction,elemental analyses,infrared spectroscopy,thermogravimetric-deferential thermal analysis,fluorescence spectroscopy and magnetic susceptibility.The complex belongs to monoclinic system with space group P 2（1）/c.The complex reveals the 2D network structures constructed by alternating twelve and eight membered ring,and further form 3D supramolecular structure by π-π stacking interaction which contributes to stabilize the network.Fluorescence analysis showed that complex has a strong emission peak in 397nm.Magnetic susceptibility results showed that the Mo atoms at the spin ground state only exist antiferromagnetic interaction in 0~300K.The complex also displays the high thermal stability.

关 键 词：钼多酸 邻菲咯啉 晶体结构 超分子 磁性 

分 类 号：O641.4[理学—物理化学]