New ternary complexes of Mn(II) with py, bipy, and terpy as primary ligand (L1) and 20,40,50,70-tetraiodofluorescein (I4FlCOOH) as secondary ligand (L2) were prepared. The stoichiometry for these complexes was found to be Mn(II):L1:L2 = 1:2:1, and the complex formula proposed is [Mn(L1)2(I4FlCOO)]?. The effect of substituent groups of L2 and the nitrogen atoms of L1 on complex formation with Mn(II) ...
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