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dc.contributor.author김영일ko
dc.contributor.author백윤기[백윤기]ko
dc.date.accessioned2015-12-17T02:28:23Z-
dc.date.available2015-12-17T02:28:23Z-
dc.date.created2015-11-13-
dc.date.issued201205-
dc.identifier.citationSOLID STATE SCIENCES, v.14, no.5, pp.580 - 582-
dc.identifier.issn1293-2558-
dc.identifier.urihttp://hdl.handle.net/YU.REPOSITORY/28304-
dc.identifier.urihttp://dx.doi.org/10.1016/j.solidstatesciences.2012.02.007-
dc.description.abstractLocal geometry and bond ionicity around the nitride ions in simple perovskite oxynitrides ATaO(2)N (A = Ca, Sr, Ba) have been investigated by solid-state magic-angle spinning (MAS) NMR spectroscopy. From all three compounds, fairly sharp N-14 NMR peaks were observed, suggestive of the symmetric coordination environment of nitride ions. The N-14 chemical shifts of ATaO(2)N, delta = 269-272 ppm relative to NH4Cl (delta = 0 ppm), are correlated to the bond ionicity, based on the N-Ta bond distances and Ta-N -Ta bond angles determined from the Rietveld refinement of neutron diffraction patterns. The H-1 NMR measured for BaTaO2N presented a peak corresponding to H2O, implying that the polycrystalline surface of present oxynitride phases is covered by hydroxide terminals. (C) 2012 Elsevier Masson SAS. All rights reserved.-
dc.language영어-
dc.publisherELSEVIER SCIENCE BV-
dc.subjectNEUTRON-
dc.subjectBATAO2N-
dc.subjectDIFFRACTION-
dc.subjectBANBO2N-
dc.subjectMETALS-
dc.titleBond covalency in perovskite oxynitrides ATaO(2)N (A = Ca, Sr, Ba) studied by N-14 NMR spectroscopy-
dc.typeArticle-
dc.identifier.wosid000304640900005-
dc.identifier.scopusid2-s2.0-84862782492-
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