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Room-temperature mixed spin state of Co3+ in Sr2Co0.02Ga0.98NbO6 double perovskite: combined NMR and EPR studies in a potential inorganic pigment

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorVARGHESE, Maneesha
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierThe Chemistry Department
dc.contributor.authorSIMPSON, Struan
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierThe Chemistry Department
dc.contributor.authorLAWRENCE, Gaynor
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDUTTINE, Mathieu
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorSANZ CAMACHO, Paula
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGAUDON, Manuel
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorTOULEMONDE, Olivier
dc.date.issued2022-05-19
dc.identifier.issn1932-7447
dc.description.abstractEnThe structural and optical properties of the refractory oxides Sr2CoxGa1–xNbO6 (x = 0 and 0.02) were investigated using powder X-ray diffraction; 93Nb, 71Ga, and 59Co magic-angle spinning nuclear magnetic resonance; electron spin resonance; and UV–vis–NIR absorption. A flux using SrCl2 versus a ball milling strategy to stabilize rock salt-ordered Sr2CoxGa1–xNbO6 (x = 0 and 0.02) at low temperature was underlined. Sr2Co0.02Ga0.98NbO6 showed a tetragonal I4/m crystalline structure with a slight lattice distortion index in the range of 0.04. Combined spectroscopic studies, further supported by UV–vis–NIR absorption analysis, definitively indicate an unusual mixed spin state of Co3+ at room temperature in the Sr2Co0.02Ga0.98NbO6 double perovskite that might be of interest for pale-brown inorganic pigments.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.title.enRoom-temperature mixed spin state of Co3+ in Sr2Co0.02Ga0.98NbO6 double perovskite: combined NMR and EPR studies in a potential inorganic pigment
dc.typeArticle de revue
dc.identifier.doi10.1021/acs.jpcc.2c00191
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Physical Chemistry C
bordeaux.page8450-8460
bordeaux.volume126
bordeaux.issue19
bordeaux.peerReviewedoui
hal.identifierhal-03693036
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03693036v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Physical%20Chemistry%20C&rft.date=2022-05-19&rft.volume=126&rft.issue=19&rft.spage=8450-8460&rft.epage=8450-8460&rft.eissn=1932-7447&rft.issn=1932-7447&rft.au=VARGHESE,%20Maneesha&SIMPSON,%20Struan&LAWRENCE,%20Gaynor&DUTTINE,%20Mathieu&SANZ%20CAMACHO,%20Paula&rft.genre=article


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