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Citation: Xian Jing-Chun, Zhu Shou-Rong, Lin Hua-Kuan, Chen Rong-Ti. Linear Free Energy Relationships of Complexes(XIX)[J]. Acta Physico-Chimica Sinica, ;1994, 10(09): 841-846. doi: 10.3866/PKU.WHXB19940914 shu

Linear Free Energy Relationships of Complexes(XIX)

1.
Department of Chemistry,Nankai University,Tianjin 300071

Received Date: 30 April 1993
Available Online: 15 September 1994

The stability constants of 5-substituted phenanthroline-12-(2'-hydroxy 1-5substituted benzy1)-1,4,7,10-tetraazacyclotr and copper(Ⅱ) ternary mixed ligand complex compounds were determined 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.
- Stability of complexes,
- Macrocyclic dioxotetraamine,
- 5-Substituted phenanthroline,
- Linear free energy relationships
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