Year 2005, Month 1 (Section Full Articles, Page 124)
Thermal lens spectrometry as a tool for determination of
stability constants of complex compounds
M. A. Proskurnin,* V. V. Chernysh, M. Yu. Kononets, and S. V. Pakhomova
The potential of thermal lens spectrometry in the determination of stability constants of
complex compounds was explored using copper(I) and iron(II) complexes with 1,10-phenanthroline and 2,9-dimethyl-1,10-phenanthroline as examples. Thermal lens spectrometry
offers advantages over conventional spectrophotometry in the determination of stability constants both in aqueous and nonaqueous media. The overall and stepwise stability constants of
iron(II) tris(1,10-phenanthrolinate), copper(I) bis(2,9-dimethyl-1,10-phenanthrolinate), and
copper(I) bis(1,10-phenanthrolinate) were determined at levels as low as 10–8—10–6 mol L–1.
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