Analytical applications of complex formation in non-aqueous solutions-I: complexes of bismuth(III) with potassium diphenyldiselenophosphate in organic solvents.
Complex formation between bismuth(III) chloride and potassium diphenyldiselenophosphate has been studied spectrophotometrically in acetronitrile, dimethylformamide, acetone, methanol, ethanol and dimethylsulphoxide media. Increased solvation ability is found to shift the maximum absorption band of the complex to longer wavelengths and there is a correlation between the stability constants and the solvent donor strength. Spectrophotometric methods for bismuth(III) determination are proposed, in methanol, ethanol and acetonitrile as media.
Yatsimirskaya
N T
NT
Department of Analytical Chemistry, Moscow State University, Moscow, USSR.
Rafee
A
A
Busev
A I
AI