CHEMOMETRIC INVESTIGATION OF COMPLEX EQUILIBRIA IN SOLUTION-PHASE .4.SOLUTE-SOLVENT INTERACTIONS IN THE COMPLEXATION OF ADIPIC ACID DIHYDRAZIDE AND 2-FUROIC ACID HYDRAZIDE WITH CO(II) AND CU(II) IN AQUO-N,N'-DIMETHYLFORMAMIDE AND AQUO-DIOXANE MEDIA

Authors
BABU AR KRISHNA DM RAO RS
Citation
Ar. Babu et al., CHEMOMETRIC INVESTIGATION OF COMPLEX EQUILIBRIA IN SOLUTION-PHASE .4.SOLUTE-SOLVENT INTERACTIONS IN THE COMPLEXATION OF ADIPIC ACID DIHYDRAZIDE AND 2-FUROIC ACID HYDRAZIDE WITH CO(II) AND CU(II) IN AQUO-N,N'-DIMETHYLFORMAMIDE AND AQUO-DIOXANE MEDIA, Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical, 32(12), 1993, pp. 1064-1071
Citations number
36
Categorie Soggetti
Chemistry
Journal title
Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical → ACNP
ISSN journal
03764710
Volume
32
Issue
12
Year of publication
1993
Pages
1064 - 1071
Database
ISI
SICI code
0376-4710(1993)32:12<1064:CIOCEI>2.0.ZU;2-K
Abstract
The complex equilibria for the interaction of Co(II) or Cu(II) with ad ipic acid dihydrazide (AADH) or 2-furoic acid hydrazide (FAH) in aqueo us dimethylformamide or dioxane media have been studied pH-metrically using a non-linear least squares program, MINIQUAD75. The initial appr oximate stability constants, stoichiometric coefficients of various sp ecies and judging of best-fit chemical Model are based on heuristic ap proach. The effect of different co-solvents and their contents on the formation of species is explained considering electrostatic, specific solute-solvent and solvent-solvent interactions. The concept of comple te equilibrium constant is used to calculate the change in the number of water molecules associated with the formation of complexes.