Electronic parameters of Sr2Nb2O7 and chemical bonding.

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dc.contributor.authorAtuchin, VVen_AU
dc.contributor.authorGrivel, JCen_AU
dc.contributor.authorKorotkov, ASen_AU
dc.contributor.authorZhang, Zen_AU
dc.date.accessioned2010-09-02T04:51:04Zen_AU
dc.date.available2010-09-02T04:51:04Zen_AU
dc.date.issued2008-06en_AU
dc.date.statistics2008-06en_AU
dc.description.abstractX-ray photoelectron spectroscopy (XPS) measurements were carried out on a strontium pyroniobate (Sr2Nb2O7) powder sample, which was synthesized using standard solid-state method. The binding energy (BE) differences between the O 1s and cation core levels, Δ(O–Nb)=BE(O 1s)–BE(Nb 3d5/2) and Δ(O–Sr)=BE(O 1s)–BE(Sr 3d5/2), were used to characterize the valence electron transfer on the formation of the Nb–O and Sr–O bonds. The chemical bonding effects were considered on the basis of our XPS results for Sr2Nb2O7 and earlier published structural and XPS data for other Sr- or Nb-containing oxide compounds. The new data point for Sr2Nb2O7 is consistent with the previously derived relationship for a set of Nb5+-niobates that Δ(O–Nb) increases with increasing mean Nb–O bond distance, L(Nb–O). A new empirical relationship between Δ(O–Sr) and L(Sr–O) was also obtained. Interestingly, the correlation between Δ(O–Sr) and L(Sr–O) was found to differ from that between Δ(O–Nb) and L(Nb–O). Possible cause for the difference is discussed. © 2008, Elsevier Ltd.en_AU
dc.identifier.citationAtuchin, V. V., Grivel, J. C., Korotkov, A. S., & Zhang, Z. (2008). Electronic parameters of sr2nb2o7 and chemical bonding. Journal of Solid State Chemistry, 181(6), 1285-1291. doi:10.1016/j.jssc.2008.01.046en_AU
dc.identifier.govdoc2587en_AU
dc.identifier.issn0022-4596en_AU
dc.identifier.issue6en_AU
dc.identifier.journaltitleJournal of Solid State Chemistryen_AU
dc.identifier.pagination1285-1291en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.jssc.2008.01.046en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/2427en_AU
dc.identifier.volume181en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectX-ray photoelectron spectroscopyen_AU
dc.subjectCrystal structureen_AU
dc.subjectBondingen_AU
dc.subjectStrontiumen_AU
dc.subjectCationsen_AU
dc.subjectValenceen_AU
dc.titleElectronic parameters of Sr2Nb2O7 and chemical bonding.en_AU
dc.typeJournal Articleen_AU
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