Abstract
Alkylenedithiophosphate derivatives of macrocyclic complexes of Pb (II), having N4S4 potential donors, of the general formula, [Pb(L){S2P(OR)2}2] where L=macrocyclic ligands L1, L2, L3, L4 and L5; R= C2H5-, C3H7n or C3H7i have been synthesized from the reaction of [Pb(L)X2(where X= Clˉ, NO3ˉ or CH3COOˉ) with sodium Alkylenedithiophosphate in 1:2 molar ratios in THF. These complexes have been characterized by elemental analysis, molar conductance, molecular weight determinations, IR, 1H, 13C NMR. Macrocyclic Complexes of Pb (II) derivatives have been studied by screening them Aspergillus flavus, Fusarium oxysporum, Alternaria alternata and bacteria like Salmonella typhi and Bacillus subtili. Alkylenedithiophosphate derivatives were found to be more fungitoxic and antibacterial than their corresponding macrocyclic complexes.
Highlights
The chemistry of macrocyclic ligands is a fascinating area of intense study for inorganic chemists
Considering the importance of mixed ligand macrocyclic complexes, we reported synthesis, characterization, antimicrobial of Cr(III), Mn(II), Fe(III), Co(III), Ni(II), Cu(II), Cd(II), Sn(II) and Pb(II) with dialkylene and alkylene dithiophosphate having N2S2 potential donors in 14 to 20 membered rings[15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32]
We have reported the macrocyclic complexes of Ni(II), Sn(II), Sr(II) and Ba(II) with dialkylene and alkylene dithiophosphate having N4S4 potential donors in 22-28 membered rings [17,24, 29,30,31,32]
Summary
The chemistry of macrocyclic ligands is a fascinating area of intense study for inorganic chemists. Considering the importance of mixed ligand macrocyclic complexes, we reported synthesis, characterization, antimicrobial of Cr(III), Mn(II), Fe(III), Co(III), Ni(II), Cu(II), Cd(II), Sn(II) and Pb(II) with dialkylene and alkylene dithiophosphate having N2S2 potential donors in 14 to 20 membered rings[15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32]. In continuation to the above work we hereby report the synthesis, characterization and antimicrobial screening of alkylene dithiophosphate derivatives of macrocyclic complexes of Pb(II) having N4S4 potential donors in 22 to 28 membered rings
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