Studies of Chromium (Iii) Complexes with Some Schiff Bases
1Department of Chemistry, S.S.V. College, Hapur - 245 101 India.
2Department of Chemistry, Sadhu Vaswani College, Bairagarh, Bhopal - 462 001 India.
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ABSTRACT:Complexes of Cr(lll) with N-4-methyl-7-hydroxy-8-aceto coumarinylidene anthranilic acid (MHACAA), N-4-methyl-7-hydroxy-8-aceto coumarinylidene-o-aminophenol (MHACAP), N-4-methyl phenacylidene anthranilic acid (MPAA) and N-4-methyl phenacylidene-o-aminophenol (MPAP) have been prepared and characterised on the basis of elemental analysis, spectral (infrared and electronic) and magnetic susceptibility data. Solution equilibrium studies of the systems Cr (lll)/Schiff bases have been earned out pH metrically (H=0.25 M NaCIO4 and temp. 30±1°C) as employed by Calvin and Melchior. The protonation constants (pK values) of the Schiff bases have been evaluated.
KEYWORDS:coumarinylidene anthranilic; phenacylidene anthranilic
