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Influence of the alkali cation size on the Cu2$\mathplus$ coordination environments in (AX)[Cu(HSeO3)2] (A=Na, K, NH4, Rb, Cs$\mathsemicolon$ X=Cl, Br) layered copper hydrogen selenite halidesстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 24 января 2020 г.
- Авторы: Charkin Dmitri O., Markovski Mishel R., Siidra Oleg I., Nekrasova Diana O., Grishayev Vasili Yu
- Журнал: Zeitschfrift für Kristallographie
- Том: 234
- Номер: 11-12
- Год издания: 2019
- Издательство: R. Oldenbourg
- Местоположение издательства: Germany
- Первая страница: 739
- Последняя страница: 747
- DOI: 10.1515/zkri-2019-0042
- Аннотация: Using solution evaporation techniques, we succeeded in preparation of new members essentially extending the layered copper hydrogen selenite family, (AX)[Cu(HSeO3)2] with A = Na, K, Rb, Cs, and NH4, and X = Cl and Br. Bromides and chlorides are isostructural in the family of described new compounds crystallizing in three different structure types. (NaX)[Cu(HSeO3)2] and (KX)[Cu(HSeO3)2] (X = Cl, Br) are monoclinic, whereas (AX) [Cu(HSeO3)2] (A = NH4, Rb, Cs; X = Cl, Br) are orthorhombic. Upon the enlargement of the A+ ionic radii inserted in the interlayer between the neighboring [Cu(HSeO3)2] slabs, the effective distance is increasing and results in essential elongation of the apical Cu-X (X = Cl, Br) distances. Three different types of CuO4Xn (n = 0–2) polyhedra are formed. The observed trend is an interesting example of the chemical tuning of the Cu2+ coordination environments.
- Добавил в систему: Чаркин Дмитрий Олегович