Synthesis, Structures And Properties Of Metal-organic Polymers Based On New Multiple Nitrogen-ligands

Metal-Organic Polymers, also known as coordination polymers, are a type ofself-assembly formed by organic ligands and metal ions. They are a new type of solid material,which have an extensive application prospect. In the past decade, metal-organic polymersattract people’s interest, because of their unique structural features, rich topologies andpromising applications in ion-exchange, gas adsorption, catalysis and chiral separation.In this paper, seven new polymers have been synthesized through hydrothermaltechnology with a series of multinitrogenhetero-cyclicligands2-(2-fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline(L1)、2-(4-fluorophenyl)-1H-imidazo-[4,5-f][1,10]phenanthroline)(L2)、2-(2-chloro-6-fluorophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline(L3)、2-amino-4-(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)phenol(L4), carboxylate ligands,Cd(II)、Pb(II)、Fe(II)、Cu(II)、Mn(II) metal center. And these polymers are characterized byX-ray, IR spectrum, element analysis, thermo gravimetry analysis and fluorescentspectroscopy. The main re-sults are as follows:[Cd(HL1)(L1)(fu)0.5]·2H2O(1)[Cd2(PBDC)2(L2)2]·H2O(2)[Pb(L2)(cis-1,4-chdc)]·0.5H2O(3)[Pb(L2)(C10H16O4)]·1.25H2O(4)[Fe(L1)(trans-1,4-chdc)]n(5)[Cu(L3)(1,4-BDC)]·1,4-H2BDC(6)[Mn3(L4)2(cis-chdc)2(trans-chdc)]n(7)...