| Инд. авторы: | Seryotkin Y.V., Pal'yanova G.A., Bakakin V.V., Kokh K.A. |
| Заглавие: | Synthesis and crystal structure of gold-silver sulfoselenides: Morphotropy in the Ag3Au(Se,S)2 series |
| Библ. ссылка: | Seryotkin Y.V., Pal'yanova G.A., Bakakin V.V., Kokh K.A. Synthesis and crystal structure of gold-silver sulfoselenides: Morphotropy in the Ag3Au(Se,S)2 series // Physics and Chemistry of Minerals. - 2013. - Vol.40. - Iss. 3. - P.229-237. - ISSN 0342-1791. - EISSN 1432-2021. |
| Внешние системы: | DOI: 10.1007/s00269-013-0563-y; SCOPUS: 2-s2.0-84874357038; WoS: 000315438500004; |
| Реферат: | eng: Gold-silver sulfoselenides of Ag3Au(Se,S)2 series-Ag3AuSe1. 5S0. 5, Ag3AuSeS, and Ag3AuSe0. 5S1. 5-have been synthesized by fusing the elements in the required stoichiometric amounts in evacuated quartz ampoules. The single crystal X-ray diffraction data indicate the existence of two solid-solution series: petzite-type cubic Ag3AuSe2-Ag3AuSeS (space group I4132) and trigonal Ag3AuSe0. 5S1. 5-Ag3AuS2 (space group R3c). Both crystal structures differ in the distribution of Ag+/Au+ cations in the same distorted body-centered cubic sublattice of chalcogen anions. The morphotropic transformation results from the shrinkage of anion packing accompanied by the shortening of Ag-Ag distances. The structure of uytenbogaardtite mineral, earlier incorrectly interpreted as a tetragonal or cubic cell, is similar to that of the trigonal Ag3AuS2 end-member. © 2013 Springer-Verlag Berlin Heidelberg.
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| Ключевые слова: | Quartz ampoule; Single crystal x-ray diffraction; Space group R3c; Space Groups; Sub-lattices; Synthesis and crystal structure; Crystal structure; Crystal structure; Gold-silver sulfoselenides; Morphotropic transformation; Body-centered cubic; Chalcogens; Gold-silver sulfoselenides; Morphotropic transformation; crystallography; gold; lattice dynamics; quartz; X-ray diffraction; stoichiometry; silver; selenite; crystal structure; Silver; X ray diffraction; Single crystals; Quartz; Negative ions; Cubic cells; Gold; |
| Издано: | 2013 |
| Физ. характеристика: | с.229-237 |