Nitrogen (oxygen) Of A Novel Organic / Inorganic (first And Second Transition Lines) Hybrid With The Synthesis, Characterization, Structure And Nature

In this paper, eight novel inorganic/organic hybrid complexes [(VO)2(HAsO4)2(phen)2] 1,[H3V3O26(AsO4)4(phen)8(H2O)2]·2H2O 2,[Cu(2,2'-bpy)](VO2)(AsO4) 3,Zn2(btec)(pipz)(H2O) 4,[Fe(phen)(ipt)]n 5,[Ni(phen)(ipt)]n 6,[Cd(ipt)(im)2]n 7, Cd(ipt)(im)3·H2O 8 have been hydrothermally synthesized through self-assembly processes. Structures of the eight complexes have been determined by single crystal X-ray diffraction, and the influencing factors on structures of hybrid complexes have been discussed. In addition, the fluorescent properties of 4 and 7 have been studied. Complexes 1, 2and 3 are inorganic/organic hybrid vanadium arsenates. In the structure of compounds 1 and 2, the 1,10-phen ligands directly coordinate to the vanadium arsenate skeleton, while compound 3 displays one-dimensional inorganic arsenic vanadate backbone grafted with the transition metal complex [Cu(2,2'-bpy)]2+. Compound 4 represents the first metal-organic polymeric structure consisted of btec-pipz mixed-ligand in which piperazine and btec are both used as bridging ligands to connect two metal centers. Compounds 5 and 6 are neutral cross double-helical structure constructed from isophthalate and 1,10-phen ligands. Compounds 7 and 8 exhibit new infinite one-dimensional chainlike structures constructed from isophthalate and imidazole ligands, and show the three-dimensional supramolecular framework by intermolecular interaction. Complexes 4 and 7 exhibit strong fluorescent emission and may be an excellent candidate for potential photoactive material. Other characterizations for these eight complexes by elemental analysis, IR, ESR, XPS, and thermal analysis have also been described.