Complexing properties ofSchiff bases with copper and nickel ions

Autor:	B. S. Grabarić, G. Aćamović-Doković, Natalija Koprivanac, Sanja Papić, Z. Grabarić
Rok vydání:	1995
Předmět:	Schiff base metal complexes copper nickel spectroscopic investigation Inorganic chemistry chemistry.chemical_element General Chemistry Copper chemistry.chemical_compound Nickel chemistry Ionic strength Reagent Methanol Solubility Benzene
Zdroj:	Monatshefte für Chemie Chemical Monthly. 126:23-34
ISSN:	1434-4475 0026-9247
DOI:	10.1007/bf00811754
Popis:	The solution properties ofPPP,QPP, and their complexes with copper and nickel were investigated. The composition and stability of the complexes have been determined using the spectrophotometric method atT=25±1 °C, constant ionic strength (I=0.5M, adjusted with KNO3) and a volume ratio of methanol/water of ϕ=0.10 and 0.16 forPPP andQPP, respectively, due to lower solubility ofQPP. The experimental results have been fitted to the theoretical equations using the computerized iterative method of successive approximation. The influence ofpH and addition of another benzene ring to the ligand molecule has been studied. The structures of isolated solid metal complexes withQPP were investigated by infrared and mass spectroscopy. The use ofPPP andQPP as analytical reagents for spectrophotometric determinations of copper and nickel is discussed.
Databáze:	OpenAIRE
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