| Инд. авторы: | Seryotkin Y.V., Bakakin V.V., Palyanova G.A., Kokh K.A. |
| Заглавие: | Synthesis and crystal structure of silver-gold sulfide AgAuS. Four-fold interpenetrated three-dimensional [(Au,Ag)(10)S-8]-networks |
| Библ. ссылка: | Seryotkin Y.V., Bakakin V.V., Palyanova G.A., Kokh K.A. Synthesis and crystal structure of silver-gold sulfide AgAuS. Four-fold interpenetrated three-dimensional [(Au,Ag)(10)S-8]-networks // Crystengcomm. - 2014. - Vol.16. - Iss. 9. - P.1675-1680. - ISSN 1466-8033. |
| Внешние системы: | DOI: 10.1039/c3ce42122h; РИНЦ: 21866223; SCOPUS: 2-s2.0-84894491227; WoS: 000331175900011; |
| Реферат: | eng: Crystals of the silver(I) thioaurate(I), AgAuS, were obtained by fusing the elements in stoichiometric amounts. The X-ray diffraction analysis showed that the synthesized phase AgAuS represents a new structural type. The unit cell parameters are a = 13.4235(3), c = 9.0873(4) A, V = 1418.07(6) A(3) and Z = 24, and the space group is R3m. The sublattice of sulfur atoms has a strongly distorted body- centered cubic packing. All Au atoms are in a typical linear coordination with sulfur ones. Three- quarters of the silver atoms are surrounded by distorted tetrahedra of sulfur atoms, while the rest of the silver atoms are involved in a linear motif typical of Au atoms as well. The resulting motif is composed of four- fold interpenetrating networks of linearly coordinated metals with 2- and 4- connected sulfur atoms: [(Au8Ag2S6S2(4))-Ag-[2]-S-[2]-S-(2)]. The formula of AgAuS can be represented as Ag-24([4])[(Au8Ag2S8)-Ag-[2]-S-[2]](4). The features of the AgAuS structure suggest the possibility of wide variation in the Au : Ag ratio.
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| Ключевые слова: | SYSTEM; ANIONS; AG-AU-S; AG3AU(SE,S)(2) SERIES; CHALCOGENIDES; |
| Издано: | 2014 |
| Физ. характеристика: | с.1675-1680 |