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Synthesis, Crystal Structure And Photo-electric Property Of A Series Of Fe(Ⅱ/Ⅲ)complexes

Posted on:2014-05-15Degree:MasterType:Thesis
Country:ChinaCandidate:X J QuFull Text:PDF
GTID:2251330425469084Subject:Inorganic Chemistry
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Ten coordination polymers have been synthesized by the reaction of Fe(Ⅱ/Ⅲ) and Cu(I/Ⅱ)ion under hydrothermal conditions. The formulas of coordination polymers are listed asfollows:[i] Fe(Ⅱ/Ⅲ)配合物(1)~(5)[ii] Cu(I/Ⅱ)配合物(6)~(10)(1){[FeⅡFe2Ⅲ(phen)4(μ-CN)2(CN)6]·4H2O}(6)[Cu3ICuⅡ(CN)5(H2O)5]n(2){[FeⅢ(CN)6]2·[FeⅢ(phen)3]2·phen·8H2O}(7){[Cu2Ⅱ(Hbtc)2(H2O)6]·H2O·ppz}n(3){[FeⅡ(Hpdc)2(H2O)2]·2H2O}(8){Na2[Cu2Ⅱ(btec)1.5(H2O)5]·H2O}n(4)[FeⅡ(CN)6]·[FeⅡ(bipy)3]2·C2H5OH·6H2O}(9){CuⅡ(cyan)2(H2O)2}(5){[FeⅢ(CN)Ⅲ6]·[Fe(bipy)3]·3H2O}(10)[CuⅡ(pdc)2]·2CH3CH2OH(bipy=2,2’-bipyridine, phen=10-phenanthroline, H2pdc=2,5-pyridine-dicarboxylic acid, cyan=Cyanuric acid, H3btc=benzene-1,3,5-tricarboxylic acid, H4btec=1,2,4,5-benzenetetra-carboxylic acid, ppz=piperazine)The structural analyse indicate that: Five iron coordination complexes, the complex(1) ismixed valence Fe(Ⅱ/Ⅲ) complex, the complexes (2) and (5) are Fe(Ⅱ) complexes, thecomplexes (3) and (4) are Fe(Ⅲ) complexes. Five copper coordination complexes, thecomplex(6) is mixed valence Cu(I/Ⅱ) complex, the complexes (7) and (8) are Cu(Ⅱ)Coordination polymers, the complexes (9) and (10) are mononuclear Cu(Ⅱ) supramolecularcomplexes.All the coordination polymers are characterized by IR, UV-Vis-NIR, surfacephotovoltage spectrum and field-induced surface photovoltage spectrum which are allcompared and assigened. The surface electron behaviors of polymers under light-inducementwere studied by SPS, which were also associated with the UV-Vis absotption spectra. Theresults are presented as follows:[1] The photo-electric properties of polymers were determined and comparativelyanalized. We found that there are obvious response bands in the range of300800nm underUV-Vis light-inducement indicating the photo-electric conversion signals were generated bythe light-inducement, which reveal that ten polymers possess photo-electric conversionproperties. [2] There are good corresponding relationships beteen SPS and UV-Vis absorptionspectra.[3] The influences of valence of central metal Fe ions to the number of SPS. Forexample, Complexes(1)-(5), The valence of central metal Fe ions are different, makes thenumber of SPS are different. mixed valence complexes makes SPS in several splitting.[4] The number of central meta ions of Asymmetric unit, to the SPS are different. Forexample, Complexes(6)-(10), The number of central meta Cu ions of Asymmetric unit aredifferent, makes the number of SPS are different. The intensity of SPS are different.
Keywords/Search Tags:Fe(II/III) Coordination complexex, Cu(I/II) Coordination polymers, CrystalStructure, photoelectric properties
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