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dc.contributor.authorAyyappan, S-
dc.contributor.authorSubbanna, G N-
dc.contributor.authorRao, C N R-
dc.identifier.citationChemistry - A European Journal 1(3), 165-170 (1995)en_US
dc.descriptionRestricted Accessen_US
dc.description.abstractDeintercalation of amines from the layered amine adducts of WO3, MoO3 and W1-xMoxO3 has been employed as a soft chemical route to produce unusual metastable structures of the oxides. After the adducts of WO3, MoO3 and W1-xMoxO3 (x = 0.25, 0.5, 0.75) with amines such as triethylamine (TEA), pyridine, n-butylamine and n-octylamine had been characterized, deintercalation was carried out thermally as well as by acid leaching. Thermal deintercalation yielded novel metastable structures of WO3 and MoO3 that were significantly different from the stable forms, which contain distorted metal-oxygen octahedra. Thus, ReO3-type cubic WO3 was obtained by the thermal deintercalation of WO3 . 0.5 TEA. Acid leaching of the amines gave metastable phases of WO3, MoO3 and W1-xMoxO3, which were different from those obtained thermally. All the metastable phases transformed to the corresponding stable forms at higher temperatures.en_US
dc.description.uri 10.1002/chem.19950010305en_US
dc.publisherVCH Publishers Incen_US
dc.rights© 1995 VCH Verlagsgrsellschafi MBHen_US
dc.subjectAcid Leachingen_US
dc.subjectLayered Oxidesen_US
dc.subjectMetastable Oxidesen_US
dc.subjectMolybdenum Compoundsen_US
dc.subjectTungsten Compoundsen_US
dc.subjectTopotactic Dehydrationen_US
dc.titleNovel Metastable Structures of WO3 MOO3and W1-xMoxO3 Obtained by the Deintercalation of Layered Amine Adductsen_US
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

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