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Preparation And Structure Of Perovskite-type (C4H9NH3)2MX4 Materials

Posted on:2005-11-29Degree:MasterType:Thesis
Country:ChinaCandidate:X WangFull Text:PDF
GTID:2121360122990386Subject:Materials science
Abstract/Summary:PDF Full Text Request
Organic-inorganic assembly layered perovskite-type materials integrate useful organic and inorganic characteristics on a molecular level. The inorganic component forms an extended framwork bound by strong covalent or ionic interactions, and the organic component is filled in which and thus the organic layer and inorganic layer are alternately stacked. The materials have unique properties such as electronic, optic and magnetic properties, and there has been great interest in studying them recently. At present, people can forecast all kinds of possibly formed structures and properties according to theory, however, it is unknown that the effects on which structures and properties by organic and inorganic component and how to interact each other, etc. In the article, a series of (C4H9NH3)2MX4 (M= Mn2+, Fe2+, Co2+, Ni2+, Cu2+, Zn2+, Pb2+; X= Cl-, Br-, I-) desired products were synthesized by a solution method in an air atmosphere, the syntheses process was discussed and the following research has been done.Element analysis apparatus and XPS were taken to analyse the chemical components of the acquired products, the chemical elements of the systems were almost in according to which theoretical structural formula. Then XRD, SEM and FTIR were used to characterize the crystal structure, and the results were primarily confirmed the (C4H9NH3)2MCl4 (M= Mn, Fe, Cu, Zn, Pb), (C4H9NH3)2MBr4 (M= Cu, Zn, Pb) and (C4H9NH3)Pbl4 systems taking on preferable layered crystal structures and characteristics of organic-inorganic hybrid , the metal cation and halogen anion takes little effect on the interlayer d-space contrasting each desired products. (C4H9NH3)2CoCl4 partly formed layered structures and other Co compound, and (C4H9NH3)2NiCl4 didn't formed layered structure, however two systems took on the characteristic of organic-inorganic hybrid, the two products probably formed corresponding coordination compounds due to Co2+ and Ni2+ forming stable [Co(NH2C
Keywords/Search Tags:layered perovskite-type, organic-inorganic molecular assembling, structure, thermal stability
PDF Full Text Request
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