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.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1994年第9期841-846,共6页
Acta Physico-Chimica Sinica
关键词
配位化学
直线自由能
二氧四胺
Stability of complexes, Macrocyclic dioxotetraamine, 5-Substituted phenanthroline, Linear free energy relationships
