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The crystal structure of the compound Pb6Cu+(AsO3)2Cl7 discovered in the ancient slags of Lavrion, Greece

  • Natalia V. Zubkova EMAIL logo , Nikita V. Chukanov , Igor V. Pekov , Konstantin V. Van , Dmitry Yu. Pushcharovsky , Athanassios Katerinopoulos , Panagiotis Voudouris and Andreas Magganas
Published/Copyright: January 21, 2015
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Zeitschrift für Kristallographie - Crystalline Materials
From the journal Zeitschrift für Kristallographie - Crystalline Materials Volume 230 Issue 3

Abstract

Lead and copper(I) chloride arsenite was found in the ancient metallurgic slag from the Vrissaki area, Lavrion district, Attikí Peninsula, Greece. Its chemical composition corresponds to the idealized formula Pb6Cu+(AsO3)2Cl7. The IR spectrum shows the presence of AsO33− anions and only a trace amount of O–H bonds. The crystal structure was solved by direct methods and refined to R(F) = 0.0304 based on 1778 unique reflections with I > 2σ(I). The compound is trigonal (rhombohedral), R3̅, a = 9.8691(2), c = 34.2028(13) Å, V = 2885.01(14) Å3, Z = 6. Two crystallographically non-equivalent As3+ cations occupy apexes of the AsO3 pyramids. Cu+ cation occupies an apex of the CuCl3 pyramid. The group [Cl3Cu–AsO3] is arranged along the c axis. Pb cations occupy two sites with seven- and eight-fold coordination. The crystal-chemical formula of the compound is Pb6(Cu+Cl3)(As3+O3)2Cl4.

Keywords: ancient slag; crystal structure; Greece; IR spectrum; Lavrion; lead chloride arsenite; univalent copper
Corresponding author: Natalia V. Zubkova, Geology Department, Moscow State University, 119991 Moscow, Russia, E-mail:

Acknowledgments

We thank anonymous referees for their valuable comments. The work was supported by Russian Science Foundation, grant no. 14-17-00048.

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Supplemental Material

The online version of this article (DOI: 10.1515/zkri-2014-1779) offers supplementary material, available to authorized users.

Received: 2014-6-18
Accepted: 2014-11-27
Published Online: 2015-1-21
Published in Print: 2015-3-1

©2015 by De Gruyter

Articles in the same Issue

  1. Frontmatter
  2. Graphical Synopsis
  3. Inorganic Crystal Structures
  4. The crystal structure of the compound Pb6Cu+(AsO3)2Cl7 discovered in the ancient slags of Lavrion, Greece
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https://doi.org/10.1515/zkri-2014-1779
Keywords for this article
ancient slag; crystal structure; Greece; IR spectrum; Lavrion; lead chloride arsenite; univalent copper

Articles in the same Issue

  1. Frontmatter
  2. Graphical Synopsis
  3. Inorganic Crystal Structures
  4. The crystal structure of the compound Pb6Cu+(AsO3)2Cl7 discovered in the ancient slags of Lavrion, Greece
  5. The magnesium intermetallics RE2RuMg (RE = Sc, Y, Er, Tm, Lu) – i2 superstructures of the CuAu type
  6. Organic and Metalorganic Crystal Structures
  7. Formation of R44(8) ring in chloride salts of 8-hydroxyquinolinium derivatives: synthesis, structural, and theoretical studies
  8. Solvent manipulation of N-methylacetamide inclusion compounds with a xanthenol host
  9. Attempted covalent imitation of a supramolecular synthon moiety embedded in a crystalline hydrogen-bonded aggregate structure
  10. Synthesis, supramolecular structure and thermal study of a new dinuclear zinc(II) complex derived from benzene-1,2,4,5-tetracarboxylic acid
  11. One-dimensional cyanide- and fumarate-bridged heteronuclear complex, poly[μ-fumaratotetraaminedizinc(II)di-μ-cyanodicyanonickel(II) dihydrate]
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