Thermische Zersetzung nichtstöchiometrischer Cäsium-Silber-Gold(III)-Chloride und Darstellung von Mischkristallen zwischen Cs2AgAuCl6 und Cs2AuIAuIIICl6

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dc.identifier.uri http://dx.doi.org/10.15488/2488
dc.identifier.uri http://www.repo.uni-hannover.de/handle/123456789/2514
dc.contributor.author Berthold, Hans Joachim
dc.contributor.author Ludwig, Wolfgang
dc.date.accessioned 2017-11-24T12:38:56Z
dc.date.available 2017-11-24T12:38:56Z
dc.date.issued 1980
dc.identifier.citation Berthold, H.J.; Ludwig, W.: Thermische Zersetzung nichtstöchiometrischer Cäsium-Silber-Gold(III)-Chloride und Darstellung von Mischkristallen zwischen Cs2AgAuCl6 und Cs2AuIAuIIICl6. In: Zeitschrift für Naturforschung - Section B Journal of Chemical Sciences 35 (1980), Nr. 8, S. 970-975. DOI: https://doi.org/10.1515/znb-1980-0807
dc.description.abstract The thermal decomposition of cesium-silver-gold(III)-chloride Cs2Ag1-xAu1+x:/3Cl6 with 0 <x ≤ 0.63 at temperatures between 250 and 350 °C yields, under evolution of chlorine, mixed crystals of Cs2AgAuCl6 and Cs2AuIAuIIICl6. The composition of the latter can be described by the formula Cs2Ag1-y,AuyIAuIIICl6 with y = 2x;/ (3-x). Apart from the formation of the mixed crystals the reaction leads to CsCl as a further phase, and in the case of x < 0.35 also to some Cs2AgAuCl6. Mixed crystals with 0.23 ≤ y < 1, free from additional solid phases, can be obtained from strong hydrochloric acid solutions of Cs2AgAuCl6 and Cs2AuIAuIIICl6, which contain an excess of cesium ions. The mixed crystals are isostructural with Cs2AuIAuIIICl6 (space group I4/mmm). The variation of the lattice constants with increasing silver content confirms that the univalent silver, in contrast to the univalent gold, shows no tendency toward the formation of linear dichloro complexes. Our investigations show that the "tetragonal modification of Cs2AgAuCl6", described by Elliott and Pauling and obtained by them by heat treatment of cubic cesium-silver - gold(III)-chloride, is, in fact, CS2Ag1-y/AuyIAuIIICl6. eng
dc.language.iso ger
dc.publisher Berlin : De Gruyter
dc.relation.ispartofseries Zeitschrift für Naturforschung - Section B Journal of Chemical Sciences 35 (1980), Nr. 8
dc.rights CC BY-NC-ND 3.0
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/3.0/
dc.subject Cesium-Silver-Gold(III)-Chloride eng
dc.subject Thermal Decomposition eng
dc.subject Preparation eng
dc.subject Lattice Constants eng
dc.subject.ddc 540 | Chemie ger
dc.title Thermische Zersetzung nichtstöchiometrischer Cäsium-Silber-Gold(III)-Chloride und Darstellung von Mischkristallen zwischen Cs2AgAuCl6 und Cs2AuIAuIIICl6
dc.type article
dc.type Text
dc.relation.essn 1865-7117
dc.relation.issn 0932-0776
dc.relation.doi https://doi.org/10.1515/znb-1980-0807
dc.bibliographicCitation.issue 8
dc.bibliographicCitation.volume 35
dc.bibliographicCitation.firstPage 970
dc.bibliographicCitation.lastPage 975
dc.description.version publishedVersion
tib.accessRights frei zug�nglich


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