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Containing Ligand Rare Earth Heteropoly Complexes Synthesis, Properties, And Theoretical Calculations

Posted on:2002-02-06Degree:MasterType:Thesis
Country:ChinaCandidate:D ZhangFull Text:PDF
GTID:2191360032455519Subject:Inorganic Chemistry
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In this paper, the complexes of Lanthanide Heteropoly Tungstosilicate contained Glycine were synthesized and characterized by element analysis.. 1k.. UV.. 慛MR.. 憕 C NMR.. TG-DTG.. X-ray analysis.. polarography-. CV and conductance. Their possible formula was K7H3[(039W,,Si)RE(Gly)3RE(SiW,1039)] 91-120 (RE=La ,Pr, Nd, Sm, Eu, Gd, Tb, Dy, Y; G1yNHPCH2COO), and their possible structure was determined. The single crystal of (C3H7NO)6ErH(SiW,204o) 6H20 was obtained, its cell parameter was a= 13.1506 A, b13.9490 A, c17.9204 A, ~ =900, 13 = 900, .y 900, z=4 and was characterized by element analysis.. 1k.. UV.. 慔 NMR.. ?C NMR ..TG-DTG. Using the first principle Density Functional Theory coupled with Discrete Variational Method (DFT-DVM), we studied the electionic structures and physical chemistry properties of series of a -Keggin structure heteropoly tungtosilicates and their Lanthanide complexes. According to the caculations , we discussed the stabilities and catalytic abilities of them. We also discussed the reaction s possibility of our complexes synthese, put forward its possible reaction mechanism and forecast its catalytic ability.
Keywords/Search Tags:Calculations
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