Synthesis, Structure And Characterization Of Inorganic-organic Hybrid Materials Based On N-Containing Ligands

On polymolybdate anion surface, attach bridging oxygen and terminal group oxygen and so on,which bare oxygen atoms make polymolybdate anion be excellent inorganic building blocks to connect with plenty of metal ions for the formation of structural diversity and enriched characteristics of functional materials,and these materials possess extensive applications value in a number of fields, such as physics,chemistry and biological medicine.The aim of this thesis is to use polymolybdate anion as building blocks with metal ions NiII,CoII,ZnII and phenanthroline ramification or 1-(4-(1H-imidazol-1-yl)butyl)-1H-imidazole(bbi) ligand synthesis series inorganic- organic hybrid polyoxometalates compounds under hydrothermal condition. In addition,choose ZnII and 1,4-Bis(imidazol-1-ylmethyl)-benzene(bix) ligand produce a novel structure of inorganic-organic hybrid complex. The crystal materials of construction were characterized with X-ray single crystal diffractometer, elemental analysis and IR spectroscopic instrument and so on, and as well their thermostability, luminescent property and catalytic performance are preliminary researched by us. Through repeatedly experiments, we summarized polyoxometalates compounds of synthesis strategy(p H value of reaction system and time) and rule,and determine the most optimum condition.1. we utilize pyrazino[2,3-f][1,10]phenanthroline(dpq) and bbi ligand and metal NiII,CoII synthesis three different inorganic-organic hybrid materials.[Ni(dpq)H2O]2(Ph PO3)2Mo5O15(1)[Co(dpq)H2O]2(Ph PO3)2Mo5O15(2)[(bbi)2(Ph PO3)2Mo5O15]·H2O(3)Structure studies have shown that: which compounds belong to Strandberg architectonic hybrid polyoxometalates compounds with three-dimensional supermolecule network structures in the end.2. we make use of 4-(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)phenol(pipt) ligand and metal NiII,CoII and ZnII synthesis three isostructureal isopolyacid compounds under hydrothermal condition through more than once experiments, and found appropriate synthesis method at last.[Ni(pipt)(H2O)2]2Mo8O26·H2O(4)[Co(pipt)(H2O)2]2Mo8O26·H2O(5)[Zn(pipt)(H2O)2]2Mo8O26·H2O(6)Structure analysis showed that: The three compounds are all geared to γ-[Mo8O26]4-architectonic polyoxometalates compounds, each chain of these complexes are through aromatic ring of organic ligand π-π stacking interaction to form stable three-dimensional supermolecule structures ultimately, and characterize heat stability for them.3. we utilize synthetic 1,11b-dihydro-2-phenyl-2H-imidazo [4,5-f][1,10] phenanthroline(Hpip) ligand and metal ZnII react repeatly under hydrothermal condition,we gain a unique Keggin architectonic polyacid compound.[Zn(Hpip)2H2O(PMo12O40)]·3H2O(7)Crystal structure analysis of compound 7 showed that: it belong to hep heteropoly compound with Keggin architectonic. The molecules between polyacid anions and organic ligands get through π-π accumulation and hydrogen-bond interaction to make full molecule more stably existence,and research IR characterization and luminescence property for compound 7.4. we use Zn(OAc)2·2H2O and bix ligand synthesis a unique structure of inorganic-organic hybrid complex under hydrothermal method with ethanediamine.[Zn(C2O4)(bix)]n(8)Structure analysis of single crystal indicate: compound 8 can be expanded from one-dimensional chain to three-dimensional supermolecule structures. Luminescent property and relevant theoretical calculate are characterized detailedly for the compound by us.