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The crystal structure of Pd8As3, a synthetic analogue of stillwaterite

Published online by Cambridge University Press:  01 July 2022

Oxana V. Karimova*
Affiliation:
Institute of Geology of Ore Deposits RAS, Staromonetny 35, Moscow, 117019, Russia
Anna A. Mezhueva
Affiliation:
Institute of Geology of Ore Deposits RAS, Staromonetny 35, Moscow, 117019, Russia
Nikolay A. Zgurskiy
Affiliation:
State University “Dubna”, Universitetskaja 19, Dubna, 141980, Russia
Andrey A. Zolotarev
Affiliation:
Institute of Earth Sciences, State University of Saint-Petersburg, University Emb. 7/9, Saint-Petersburg, 199034, Russia
Dmitriy A. Chareev
Affiliation:
State University “Dubna”, Universitetskaja 19, Dubna, 141980, Russia Institute of Experimental Mineralogy RAS, Chernogolovka, Moscow District, 142432, Russia Ural Federal University, Ekaterinburg, 620002, Russia Kazan Federal University, Kazan, 420008, Russia
*
*Author for correspondence: Oxana V. Karimova, Email: [email protected]

Abstract

The synthetic analogue of mineral stillwaterite, Pd8As3, was synthesised and its crystal structure was solved to R1 = 0.0341 based on single crystal X-ray diffraction data. Pd8As3 is trigonal and the space group is P$\bar{3}$. The unit-cell parameters are a = 7.4261(4), c = 10.3097(9) Å and V = 492.38(7) Å3 with Z = 3. The structure builds up by layers of Pd and As atoms. Pd-nets and As-nets are parallel to (110) and stack along the c axis direction. The stacking sequence is ABCDEEDCBA. The relation between structures of minerals with the common formula Pd8T3 (T = As or/and Sb) are discussed. They are formed by nets of pnictogen and palladium atoms. The common feature of the structures is 36 topology of pnictogen nets. The differences are stacking sequences and topology of the palladium nets.

Type
Article
Copyright
Copyright © The Author(s), 2022. Published by Cambridge University Press on behalf of The Mineralogical Society of Great Britain and Ireland

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Footnotes

Associate Editor: František Laufek

References

Agilent (2012). CrysAlis PRO. Agilent Technologies Ltd, Yarnton, Oxfordshire, England.Google Scholar
Baelz, U. and Schubert, K. (1969) Kristallstruktur von Pd2As(r) und Pd2Sb. Journal Less-Common Metals, 19, 300304.CrossRefGoogle Scholar
Begizov, V.D., Meshchankina, B.I. and Dubakina, L.S. (1974) Palladoarsenid Pd2As-nature arsenid of palladium from copper-nickel ores Oktyabr'skiy Locality. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 103, 104 [in Russian].Google Scholar
Breese, N.E. and Schnering, N.G. (1994) Bonding trends in pyrites and a reinvestigation of the structures of PdAs2, PdSb2, PtSb2 and PtBi2. Zeitschrift für anorganische und allgemeine Chemie. 620, 393404.CrossRefGoogle Scholar
Cabri, L.J., Laflamme, J.H.G., Stewart, J.M., Rowland, J.F. and Chen, T.T. (1975) New data on some palladium arsenides and antimonides. The Canadian Mineralogist, 13, 321335.Google Scholar
Farrugia, L.J. (2012) WinGX and ORTEP for Windows: an update. Journal of Applied Crystallography, 45, 849854.CrossRefGoogle Scholar
Karimova, O.V., Grokhovskaya, T.L., Zolotarev, A.A. and Gurzhiy, V.V. (2016) Crystal structure refinements of isomertieite, Pd11Sb2As2, and tornroosite, Pd11As2Te2. The Canadian Mineralogist, 54, 511517.CrossRefGoogle Scholar
Karimova, O.V., Zolotarev, A.A., Evstigneeva, T.L. and Johanson, B.S. (2018) Mertieite-II, Pd8Sb2.5As0.5, crystal-structure refinement and formula revision. Mineralogical Magazine, 82(S1), S247S257.CrossRefGoogle Scholar
Karimova, O.V., Zolotarev, A.A., Johanson, B.S. and Evstigneeva, T.L. (2020) The crystal structure of arsenopalladinite, P d8As2.5Sb0.5, and its relation to mertieite-II, Pd8Sb2.5As0.5. Mineralogical Magazine, 84, 746752.CrossRefGoogle Scholar
Marsh, R.E. (1994) The centrosymmetric-noncentrosymmetric ambiguity: some more examples. Acta Crystallographica, 50, 450455.CrossRefGoogle Scholar
Matkovic, T. and Schubert, K. (1978) Kristallstruktur von Pd5As und Pd5Ge. Journal of the Less-Common Metals, 58, 16.CrossRefGoogle Scholar
Prince, E. (2004) (editor). International Tables for Crystallography. Vol. C, Mathematical, Physical, and Chemical Tables, 3rd ed. Tables 4.2.6.8 and 6.1.14. Kluwer Academic Publishers, Dordrecht, The Netherlands.Google Scholar
Pearson, W.B. (1972) The Crystal Chemistry and Physics of Metals and Alloys. Wiley–Interscience. New York. 806 p.Google Scholar
Saini, G.S., Calvert, L.D., Heyding, R.D. and Taylor, J.B. (1964) Arsenides of the transition metals. VII. The palladium-arsenic system. Canadian Journal of Chemistry, 42, 620629.Google Scholar
Shackleton, N.J., Malysiak, V. and O'Connor, C.T. (2007) Surface characteristics and flotation behaviour of platinum and palladium arsenides. International Journal of Mineral Processing, 85, 1–3, 2540.CrossRefGoogle Scholar
Sheldrick, G.M. (2015a) SHELXT – Integrated space-group and crystal-structure determination. Acta Crystallographica, A71, 38.Google Scholar
Sheldrick, G.M. (2015b) Crystal structure refinement with SHELXL. Acta Crystallographica, C71, 38.Google Scholar
Wopersnow, W. and Schubert, K. (1976) Kristallstruktur von Pd8Sb3. Journal of the Less-Common Metals. 48, 7987.CrossRefGoogle Scholar
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