Stability constants of thiocyanato complexes of cobalt(II), nickel(II) and copper(II) in methanol.
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.
Khan
M
M
Laboratoire de Chimie de Coordination, Université d'Angers, Faculté de Pharmacie, France. mustayeen.khan@univ-angers.fr
Bouet
G
G
Tanveer
R
R
Ahmed
R
R
D003035:Cobalt / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D000432:Methanol / Q000737:chemistry; D008956:Models, Chemical; D009532:Nickel / Q000737:chemistry*; D013053:Spectrophotometry; D013861:Thiocyanates / Q000737:chemistry*
D013861:Thiocyanates; C121142:copper(II) thiocyanate; C121141:nickel thiocyanate; C038956:cobalt thiocyanate; D003035:Cobalt; D003300:Copper; D009532:Nickel; D000432:Methanol