Research Article
Solution Studies on Co(II), Ni(II), Cu(II), and Zn(II) Complexes of Hexamethylenetetramine in Aqueous and Non-Aqueous Solvents
Figure 16
Variation of the electronic spectra of the Co2+-HMTA system with: (a) R = 0, (b) R = 0.5, (c) R = 1.5, and (d) R = 2−4.
