配位化学中的直线自由能关系(XIX)  

Linear Free Energy Relationships of Complexes(XIX)

作　　者：贤景春[1] 朱守荣[2] 林华宽[2] 陈荣悌[2] 

机构地区：[1]内蒙古民族师范学院化学系,通辽028000 [2]南开大学化学系,天津300071

出　　处：《物理化学学报》1994年第9期841-846,共6页Acta Physico-Chimica Sinica

摘　　要：The stability constants of 5-substituted phenanthroline-12-(2’-hydroxy 1-5substituted benzy1)-1,4,7,10-tetraazacyclotr and copper(Ⅱ) ternary drixed ligand complex compounds were detendned by pH method at 25.0±0.1 ℃ in the presence of 0.1 mol·dm-3KNO3. The form of coordination macrocyclopolyamine ligandcopper(Ⅱ)-5-substituted phenanthroline in aqueous solution were studied. The formation of d-π back bonding between copper(Ⅱ ) and nitrogen heteronuclear aromatic base has been proved. The tendency of stability of the ternary complexes have been explained by electron effects and d-π back bonding.The stability constants of 5-substituted phenanthroline-12-(2'-hydroxy 1-5substituted benzy1)-1,4,7,10-tetraazacyclotr and copper(Ⅱ) ternary drixed ligand complex compounds were detendned by pH method at 25.0±0.1 ℃ in the presence of 0.1 mol·dm-3KNO3. The form of coordination macrocyclopolyamine ligandcopper(Ⅱ)-5-substituted phenanthroline in aqueous solution were studied. The formation of d-π back bonding between copper(Ⅱ ) and nitrogen heteronuclear aromatic base has been proved. The tendency of stability of the ternary complexes have been explained by electron effects and d-π back bonding.

关 键 词：配位化学 直线自由能 二氧四胺 

分 类 号：O641.4[理学—物理化学]