Abstract
Complexes of Sn(II) with L-1 = acac-o-phdnH(2) [N, N'-o-phenylene bis(acetylacetoneimine)], L-2 = acacm- phdnH(2) [N, N'-m-phenylene bis(acetylacetoneimine)] and L-3 = acac-p-phdnH(2) [N, N'-p-phenylene bis(acetylacetoneimine)] have been prepared and characterized by elemental analyses, vibrational, electronic spectra and thermal studies (TGA and DTA). Vibrational spectra indicated the coordination mode of imine and carbonyl oxygen for ligands giving (ONNO) that belong to C-2V point group symmetry. The [Sn(L-3)] complex has a maximum activation energy and [Sn(L-2)] complex has a minimum activation energy.