^(31)P NMR Studies on the Ligand Dissociation of Trinuclear Molybdenum Cluster Compounds  

作　　者：李兆基 覃业燕 唐艳红 康遥 夏继波 陈忠 吴棱 姚元根 

机构地区：[1]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China [2]Department of Chemistry, Xiamen University, Xiamen, Fujian 361005, China

出　　处：《Chinese Journal of Chemistry》2003年第9期1174-1177,共4页中国化学（英文版）

基　　金：theMajorStateBasicResearchandDevelopmentProgramofChina (No .0 0 1CB10 890 6 ) ,theNationalNaturalSci enceFoundationofChina (Nos .2 97330 90and 2 0 1730 6 3) ,andtheNaturalScienceFoundationofFujianProvince (Nos .B970 15andE0 0 2 0 0 0 1)

摘　　要：A series of carboxylate-substituted trinuclear molybdenum cluster compounds formulated as Mo 3S 4(DTP) 3(RCO 2)(L), where R=H, CH 3, C 2H 5, CH 2Cl, CCl 3, R 1C 6H 4 (R 1 is the group on the benzene ring of aromatic carboxylate), L=pyridine, CH 3CN, DMF, have been synthesized by the ligand substitution reaction. The dissociation of the loosely-coordinated ligand L from the cluster core was studied by 31P NMR. The dissociation process of L is related to the solvent, temperature, and acidity of carboxylate groups, so as to affect the solution structure and reactive properties of the cluster. The long-distance interaction between ligands RCO 2 and L is transported by Mo 3S 4 core.A series of carboxylate-substituted trinuclear molybdenum cluster compounds formulated as Mo 3S 4(DTP) 3(RCO 2)(L), where R=H, CH 3, C 2H 5, CH 2Cl, CCl 3, R 1C 6H 4 (R 1 is the group on the benzene ring of aromatic carboxylate), L=pyridine, CH 3CN, DMF, have been synthesized by the ligand substitution reaction. The dissociation of the loosely-coordinated ligand L from the cluster core was studied by 31P NMR. The dissociation process of L is related to the solvent, temperature, and acidity of carboxylate groups, so as to affect the solution structure and reactive properties of the cluster. The long-distance interaction between ligands RCO 2 and L is transported by Mo 3S 4 core.

关 键 词：31P NMR molybdenum cluster ligand dissociation 

分 类 号：O657.2[理学—分析化学]