新型三甲基乙酸铑(Ⅱ)轴向配合物的合成、结构表征及催化性能  

Synthesis,Structure Characterization and Catalytic Properties of Novel Rhodium(II)Trimethylacetate Axial Complexes

作　　者：倪文若 刘学 田乙然 皮晓琳 李鸿鹏 张振强 NI Wenruo;LIU Xue;TIAN Yiran;PI Xiaolin;LI Hongpeng;ZHANG Zhenqiang(Yunnan Precious Metals Laboratory Co.,Ltd.,Kunming 650106,China;Sino-Platinum Metals Co.,Ltd.,Kunming 650106,China;State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals,Kunming 650106,China)

机构地区：[1]云南贵金属实验室有限公司,云南昆明650106 [2]贵研铂业股份有限公司,云南昆明650106 [3]昆明贵金属研究所稀贵金属综合利用新技术国家重点实验室,云南昆明650106

出　　处：《合成化学》2023年第7期497-505,共9页Chinese Journal of Synthetic Chemistry

基　　金：云南省基础研究专项-重点项目(202101AS070049)。

摘　　要：羧酸铑(II)配合物是一类结构独特的同核双金属化合物,通常表现出较高的催化活性和选择性,中心金属铑、配体类型和空间结构都影响其催化性能。本文以三甲基乙酸铑(II)为母体,吡啶-2-基(吡啶-3-基)甲酮(23ma)和二吡啶-2-基甲酮(22ma)为轴向配体,设计合成了2种新型的三甲基乙酸铑(II)轴向配合物。通过^(1)H NMR、^(13)C NMR、MS、IR和X-单晶射线衍射对其结构进行表征,并测试了配合物对美罗培南类合成反应的催化性能。结果表明:与母体分子三甲基乙酸铑(II)相比,所合成的轴向配合物在美罗培南类合成体系中因存在溶解性较差等缺点,导致其催化性能均不佳。Rhodium(II) carboxylate complexes are a class of homonuclear bimetallic compounds with unique structure, which usually exhibit high catalytic activity and selectivity, and the central rhodium, ligand type and spatial structure all affect its catalytic performance. In this article, two novel axial complexes of rhodium(II) trimethylacetate were designed and synthesized with rhodium(II) trimethylacetate as parent body and pyridin-2-yl(pyridin-3-yl) ketone( 23ma ) and dipyridin-2-yl ketone( 22ma ) as axial ligands, and their compound single crystals were successfully cultured. Their structures were characterized by ^(1)H NMR, ^(13)C NMR, MS, IR and X-ray single crystal diffractions, and their catalytic properties for the synthesis of meropenem were tested. The results showed that compared with the parent molecule rhodium(II) trimethylacetate, the synthesized axial complexes performed poor catalytic properties in the meropenem synthesis system due to the poor solubility.

关 键 词：轴向配合物 轴向配体 合成 晶体结构 键长 催化性能 

分 类 号：O614.8[理学—无机化学]