Oxomanganese (II)-Arsine Oxide Complexes from o-R2AsC6H4CO2H Ligands: Role of Inductive Effect and Reaction Conditions in Stabilizing Manganese (II)-Arsine Complexes
作者:S.S. Parmar、A. Aggarwal、M.L. Sehgal、Sunaina Singh、Midas Tsai
DOI:10.13005/ojc/360203
日期:2020.4.28
Reactions of Mn(O2CMe)2. nH2O (n = 0 and 4) with the ligand o-R2AsC6H4CO2H (where, R = alkyl substituent such as -CH3 (Me), -C2H5 (Et), and -C6H11) formed nine oxomanganese (II)-arsine oxide complexes: [Mn2O(o-R2As(O)C6H4CO2)2(H2O)n}. n' H2O] R = -Me, n = 3; n' = 0 (three isomers); R = -Et, n = 3, n' = 0; n = 5, n' = 1, 2; R = -C6H11, n = 5, n' = 0 (two isomers), n = 1, n' = 0} in the presence of
Mn(O2CMe)2的反应。nH2O(n = 0和4)与配体o-R2AsC6H4CO2H(其中R =烷基取代基,例如-CH3(Me),-C2H5(Et)和-C6H11)形成九个氧锰(II)-ar氧化物配合物: [Mn 2 O (邻-R 2 As(O)C 6 H 4 CO 2)2(H 2 O)n}。n'H2O] R = -Me,n = 3; n'= 0(三个异构体);R = -Et,n = 3,n'= 0;n = 5,n'= 1,2;R = -C6H11,n = 5,n′= 0(两个异构体),n = 1,n′= 0},同时存在湿气和氧气。通过IR,UV-Vis和EPR光谱技术对制备的复合物进行表征,并通过测量其磁化率,热导率和摩尔电导率进一步证实。两种不同类型络合物的形成是由于芳基和烷基取代基的诱导作用不同以及抗衡阴离子的变化,即