Siidra, Oleg and Charkin, Dmitri and Plokhikh, Igor and Nazarchuk, Evgeny and Holzheid, Astrid and Akimov, Georgy (2020) Expanding Family of Litharge-Derived Sulfate Minerals and Synthetic Compounds: Preparation and Crystal Structures of [Bi2CuO3]SO4 and [Ln(2)O(2)]SO4 (Ln = Dy and Ho). MINERALS, 10 (10): 887. ISSN , 2075-163X
Full text not available from this repository. (Request a copy)Abstract
During the last decades, layered structures have attracted particular and increasing interest due to the multitude of outstanding properties exhibited by their representatives. Particularly common among their archetypes, with a significant number of mineral and synthetic species structural derivatives, is that of litharge. In the current paper, we report the structural studies of two later rare-earth oxysulfates, [Ln(2)O(2)]SO4 (Ln = Dy, Ho), which belong indeed to the grandreefite family, and a novel compound [Bi2CuO3]SO4, which belongs to a new structure type and demonstrates the second example of Cu2+ incorporation into litharge-type slabs. Crystals of [Bi2CuO3]SO4 were obtained under high-pressure/high-temperature (HP/HT) conditions, whereas polycrystalline samples of [Ln(2)O(2)]SO4 (Ln = Dy, Ho) compounds were prepared via an exchange solid-state reaction. The crystal structure of [Bi2CuO3]SO4 is based on alternation of continuous [Bi2CuO3](2+) layers of edge-sharing OBi2Cu2 and OBi3Cu tetrahedra and sheets of sulfate groups. Cu2+ cations are in cis position in O5Bi(2)Cu(2) and O6Bi(2)Cu(2) oxocentered tetrahedra in litharge slab. The crystal structure of [Ln(2)O(2)]SO4 (Ln = Dy, Ho) is completely analogous to those of grandreefite and oxysulfates of La, Sm, Eu, and Bi.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PB OXYCHLORIDE MINERALS; KOMBAT MINE; SOLID-STATE; CHEMISTRY; COMPLEX; GRANDREEFITE; OXYSULFATE; ND; LA; CU; sulfates; litharge; layered structures; copper; lanthanides; crystal structure; synthesis |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Arno Pfitzner |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 09 Mar 2021 11:51 |
| Last Modified: | 09 Mar 2021 11:51 |
| URI: | https://pred.uni-regensburg.de/id/eprint/43641 |
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