Research output: Contribution to journal › Article › peer-review
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.
Original language | English |
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Pages (from-to) | 739-747 |
Number of pages | 9 |
Journal | Zeitschrift fur Kristallographie - Crystalline Materials |
Volume | 234 |
Issue number | 11-12 |
DOIs | |
State | Published - 18 Dec 2019 |
ID: 53747767