The crystal structure of the natural 1,2,4-triazolate compound NaCu<sub>2</sub>Cl<sub>3</sub>[N<sub>3</sub>C<sub>2</sub>H<sub>2</sub>]<sub>2</sub>[NH<sub>3</sub>]<sub>2</sub>•4H<sub>2</sub>O
- Author(s)
- Natalia V Zubkova, N V Chukanov, Igor V Pekov, Gerhard Möhn, Gerald Giester, Vasiliy O. Yapaskurt, Inna Lykova, Dmitry Y. Pushcharovsky
- Abstract
The crystal structure of a new natural compound NaCu2Cl3[N3C2H2]2[NH3]2·4H2O, (further denoted I in the text) from a guano deposit located on the Pabellón de Pica Mountain, Iquique Province, Tarapacá Region, Chile, was studied by single-crystal low-temperature (200 K) XRD, R=2.42%. The compound I is orthorhombic, space group P212121; a=19.484(3), b=7.2136(10), c=11.999(4) Å, V=1686.5(7) Å3, Z=4. The crystal structure of I contains zig-zag chains of the corner-sharing Cu(1)-centered octahedra running along the a axis and isolated Cu(2)-centered octahedra connected with the chains via 1,2,4-triazolate anions. This structural fragment is close to that found in the mineral chanabayaite, Cu2(N3C2H2)2Cl(NH3, Cl, H2O, □)4. In contrast to Na-free chanabayaite, in the structure of I Na cations occupy Na(H2O)6 octahedra connected via common edges to form chains parallel to the chains of Cu(1)-centered octahedra. I is the second natural compound, after chanabayaite, with 1,2,4-triazolate anions N3C2H2- and is assumed to be a protophase of chanabayaite; the latter was presumably formed as a result of Na and Cl leaching and dehydration of I.
- Organisation(s)
- Department of Mineralogy and Crystallography
- External organisation(s)
- Anuchin Research Institute and Museum of Anthropology, Russian Academy of Sciences, Vogtsstr. 3
- Journal
- Zeitschrift für Kristallographie - Crystalline Materials
- Volume
- 231
- Pages
- 47-53
- No. of pages
- 7
- ISSN
- 2194-4946
- DOI
- https://doi.org/10.1515/zkri-2015-1861
- Publication date
- 01-2016
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 105116 Mineralogy, 105113 Crystallography
- Keywords
- ASJC Scopus subject areas
- Condensed Matter Physics, Materials Science(all), Inorganic Chemistry
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/the-crystal-structure-of-the-natural-124triazolate-compound-nacu2cl3n3c2h22nh324h2o(2c4d4236-d6ad-4ea2-a143-313d7b4d4fcb).html