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dc.creatorBetsch, Regis J.en_US
dc.creatorWhite, William B.en_US
dc.date.accessioned2006-06-15T13:49:53Z
dc.date.available2006-06-15T13:49:53Z
dc.date.issued1976en_US
dc.identifier1976-TD-4en_US
dc.identifier.urihttp://hdl.handle.net/1811/9843
dc.descriptionAuthor Institution: Materials Research Laboratory, The Pennsylvania Stale Universityen_US
dc.description.abstractBismuth oxide is monoclinic, space group $P2_{1}/c$, The sillenite compounds are impurity stabilized derivatives with general formula $MO_{X}$ $6Bi_{2}O_{3}$, body-centered cubic with space group I23. Far infrared and Raman spectra have been measured on polycrystalline $Bi_{2}O_{3}$ and on sillenite structures in which the stabilizing oxide is $SiO_{2} GeO_{2}, TiO_{2}, Ga_{2}O_{3}, ZnO$, or PbO. About half of the predicted 24 IR bands and band Raman bands are observed for the sillenite structures. Low frequency Raman bands are very sharp but high frequency bauds are greatly broadened. This is interpreted in terms of an orientational disorder of the lone-pair non-bonding orbital of $Bi^{3+}$ in the bismuth-oxygen framework. Although an isolated regular tetrahedron, $MO_{4}$, exists in the structure, internal modes from the tetrahedron are not identifiable, indicating a strong coupling with the frame-work.en_US
dc.format.extent107060 bytes
dc.format.mimetypeimage/jpeg
dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleVIBRATIONAL. SPECTRA OF BISMUTH OXIDE AND SILLENITE STRUCTURE BISMUTH OXIDE DERIVATIVESen_US
dc.typearticleen_US


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