Solution Studies on Co(II), Ni(II), Cu(II), and Zn(II) Complexes of Hexamethylenetetramine in Aqueous and Non-Aqueous Solvents
Figure 11
Variation of the electronic spectra of the Ni2+-HMTA system with (a) R = 0, (b) R = 0.5, (c) R = 1.5, (d) R = 2, (e) R = 2.5, (f) R = 3, and (g) R = 3.5, R = 4.
