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Spectrophotometric Studies on Some 5, 5-Dimethyl- Cyclohexane E 2 -(2 Hydroxypheinyl) Hydrazono 1,3 Dlone Derivatives and their Complexes With Copper Metal Ion

Ahmad El-Waseef

Faculty of Education, Chemistry Department, Ain Shams University, Heliopolis. Cairo. (Egypt)

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ABSTRACT:

The electronic absorption spectra of 5, 5-Dimethyl cyclohexane 2 <2-hydroxy Phenyl) Hydra-zono 1.3 Dione [DCPHD] (I), 5, 5-DimethyIcyclohexane-2-(2-hydroxy-4-methyl Phenyl) Hydrazono Dione {DC -4-Me-PHD] (II) and 5, 5~DimethylcyeIohexane-2-(2 -hydroxy -4-chlorophenyl) 1,3 Dione (DC-4- C1-FHD1 (HI) are investigated. These spectra exhibit three trmuc bands A, Band C The assignment of the observed hands to certain transitions is attempted. The composition of the complexes of Cu2+ with ligands (I), (II) and (II) was determined by molar ratio and continuous variation methods. The stability constant* of complexes of Cu2+ ion with these dyes were calculated and found to be in the order: DC-4-CI-PHD < DCPHD < DC 4-Me-PHD.

KEYWORDS:

Cyclohexane; Hydrazono; Complexes

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El-Waseef A. Spectrophotometric Studies on Some 5, 5-Dimethyl- Cyclohexane E 2 -(2 Hydroxypheinyl) Hydrazono 1,3 Dlone Derivatives and their Complexes With Copper Metal Ion. Orient J Chem 1987;3(1).


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El-Waseef A. Spectrophotometric Studies on Some 5, 5-Dimethyl- Cyclohexane E 2 -(2 Hydroxypheinyl) Hydrazono 1,3 Dlone Derivatives and their Complexes With Copper Metal Ion. Orient J Chem 1987;3(1). Available from: http://www.orientjchem.org/?p=42185



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