Synthesis and characterization of [PtIn6](GeO4)2O and its solid solution [PtIn6](GaO4)2-x(GeO4)xOx/2 (0 < x < 2): gradual color change of the solid solution from black (x = 0) to yellow (x = 2) as a consequence of quantum dot effect
| hal.structure.identifier | Max-Planck-Institut für Festkörperforschung | |
| dc.contributor.author | KÖHLER, Jürgen | |
| hal.structure.identifier | Max-Planck-Institut für Festkörperforschung | |
| dc.contributor.author | FRIEDRICH, Holger | |
| hal.structure.identifier | Department of Chemistry, North Carolina Raleigh | |
| dc.contributor.author | WHANGBO, Myung-Hwan | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | VILLESUZANNE, Antoine | |
| dc.date.issued | 2005 | |
| dc.identifier.issn | 0002-7863 | |
| dc.description.abstractEn | A new phase [PtIn6](GeO4)2O, a filled variant of [PtIn6](GaO4)2, and the solid solution [PtIn6](GaO4)2-x(GeO4)xOx/2 (0 < x < 2) were prepared and characterized. Single-crystal structure refinements show that [PtIn6](GeO4)2O is isotypic with the mineral, sulfohalite Na6FCl(SO4)2, and crystallizes in the space group Fmm (Z = 4) with a = 1006.0(1) pm. The building units of [PtIn6](GeO4)2O are isolated [PtIn6]10+ octahedra and (GeO4)4- tetrahedra, and the isolated O2- ions occupy the centers of the In6 octahedra made up of six adjacent PtIn6 octahedra. The lattice parameter of the solid solution [PtIn6](GaO4)2-x(GeO4)xOx/2 (0 < x < 2) varies gradually from a = 1001.3(1) pm at x = 0 to a = 1006.0(1) pm at x = 2, and the color of the solid solution changes gradually from black (x = 0) to red (x = 1) to yellow (x = 2). The cause for the gradual color change was examined by performing density functional theory electronic structure calculations for the end members [PtIn6](GaO4)2 and [PtIn6](GeO4)2O. Our analysis indicates that an oxygen atom at the center of a In6 octahedron cuts the In 5p/In 5p bonding interactions between adjacent [PtIn6]10+ octahedra thereby raising the bottom of the conduction bands, and the resulting quantum dot effect is responsible for the color change. | |
| dc.language.iso | en | |
| dc.publisher | American Chemical Society | |
| dc.subject.en | Solid solution | |
| dc.subject.en | Quantum dot effect | |
| dc.subject.en | Color | |
| dc.subject.en | Synthesis | |
| dc.subject.en | Characterization | |
| dc.subject.en | Crystal structure | |
| dc.subject.en | Metal clusters | |
| dc.title.en | Synthesis and characterization of [PtIn6](GeO4)2O and its solid solution [PtIn6](GaO4)2-x(GeO4)xOx/2 (0 < x < 2): gradual color change of the solid solution from black (x = 0) to yellow (x = 2) as a consequence of quantum dot effect | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1021/ja053280x | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Journal of the American Chemical Society | |
| bordeaux.page | p. 12990-12996 | |
| bordeaux.volume | vol. 127, n° 37 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00097948 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Non spécifiée | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00097948v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20the%20American%20Chemical%20Society&rft.date=2005&rft.volume=vol.%20127,%20n%C2%B0%2037&rft.spage=p.%2012990-12996&rft.epage=p.%2012990-12996&rft.eissn=0002-7863&rft.issn=0002-7863&rft.au=K%C3%96HLER,%20J%C3%BCrgen&FRIEDRICH,%20Holger&WHANGBO,%20Myung-Hwan&VILLESUZANNE,%20Antoine&rft.genre=article |
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