Stability constants of thiocyanato complexes of cobalt(II), nickel(II) and copper(II) in methanol

J Inorg Biochem. 1999 Jun 15;75(2):79-83. doi: 10.1016/s0162-0134(99)00033-1.

Abstract

A spectrophotometric study of cobalt(II), nickel(II) and copper(II) thiocyanato complexes was carried out in methanol at 25 degrees C and at a constant ionic strength of 1 M. Under the experimental conditions, two mononuclear complexes are identified with each of the three metal ions. Their stability constants are determined with a recent PC program SIRKO and the calculated values are: for cobalt, log beta 1 = 1.6, log beta 2 = 2.7; for nickel, log beta 1 = 1.8, log beta 2 = 3.0; and for copper, log beta 1 = 3.0, log beta 2 = 3.6.

MeSH terms

  • Cobalt / chemistry*
  • Copper / chemistry*
  • Methanol / chemistry
  • Models, Chemical
  • Nickel / chemistry*
  • Spectrophotometry
  • Thiocyanates / chemistry*

Substances

  • Thiocyanates
  • copper(II) thiocyanate
  • nickel thiocyanate
  • cobalt thiocyanate
  • Cobalt
  • Copper
  • Nickel
  • Methanol