Synthesis of Imine-Naphthol Tripodal Ligand and Study of Its Coordination Behaviour towards Fe(III), Al(III), and Cr(III) Metal Ions

Figure 5

pH dependent electronic spectra as a function of absorbance and wavelength for (a) trenhynaph, (b) 1 : 1 solution of Fe(III), (c) Cr(III), and (d) Al(III) and trenhynaph, [trenhynaph] = [M(III)] =  M, , 0.1 M KCl in DMSO/H₂O (5 : 95).

(a)

(b)

(c)

(d)