Journal of the Serbian Chemical Society 2007 Volume 72, Issue 10, Pages: 975-981
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Spectrophotometric study of Co(II), Ni(II), Cu(II), Zn(II), Pd(II) and Hg(II) complexes with isatin-β-thiosemicarbazone
Konstantinović Sandra S., Radovanović Blaga C., Todorović Zoran B., Ilić Slavica B.
The composition and stability of the complexes of isatin-β-thiosemicarbazone with Co(II), Ni(II), Cu(II), Zn(II), Pd(II) and Hg(II) have been investigated using spectrophotometric method at 30°C and constant ionic strength of 0.1 mol dm-3 (KNO3) in 70 % ethanol. Experimental results indicate the formation of MeL and MeL2 complexes for Ni(II) and Co(II), and MeL for Cu(II), Zn(II), Pd(II) and Hg(II) complexes, whose stability constants, βn, have been calculated using a computerized iterative method of successive approximation.
Keywords: isatin-β-thiosemicarbazone, complexes, spectrophotometric study, stability constant
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