Hostname: page-component-848d4c4894-x24gv Total loading time: 0 Render date: 2024-06-03T15:23:50.329Z Has data issue: false hasContentIssue false
  • English
  • Français

Crystal chemistry of basic lead carbonates. I. Crystal structure of synthetic shannonite, Pb2O(CO3)

Published online by Cambridge University Press:  05 July 2018

S. V. Krivovichev  and
P. C. Burns
S. V. Krivovichev*
Affiliation:
Department of Civil Engineering and Geological Sciences, 156 Fitzpatrick, University of Notre Dame, Notre Dame IN 46556-0767, USA
P. C. Burns
Affiliation:
Department of Civil Engineering and Geological Sciences, 156 Fitzpatrick, University of Notre Dame, Notre Dame IN 46556-0767, USA
*
*E-mail: sergey@cryst.geol.pu.ru
Get access Rights & Permissions [Opens in a new window]

Abstract

The crystal structure of synthetic shannonite, Pb2O(CO3), orthorhombic, P212121, a = 5.1465(7), b = 9.014(1), c = 9.315(1)Å, V = 432.12(10)Å3, Z = 4, has been solved by direct methods and refined to R = 0.054. There are two symmetrically distinct Pb2+ cations in irregular coordination polyhedra due to the effect of stereoactive s2 lone-electron pairs. The structure can be described as composed of chains of [OPb2] composition running parallel to [100] that are built by corner-sharing of OPb3 oxocentred triangles. The [OPb2] chains are surrounded by CO3 groups to form complex [OPb2](CO3) chains that are linked into a 3-dimensional framework by additional Pb–O bonds. The structure has channels that are parallel to [100] in which the lone-electron pairs of the Pb2+ cations are probably located.

Keywords

shannonitelead oxide carbonatelone-electron pairs
Type
Research Article
Information
Mineralogical Magazine , Volume 64 , Issue 6 , December 2000 , pp. 1063 - 1068
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2000

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

†

Permanent address: Department of Crystallography, St. Petersburg State University, University Emb. 7/9. 199034 St. Petersburg Russia

References

Brese, N.E. and O’Keeffe, M. (1991) Bond-valence parameters for solids. Acta Crystallogr., B47, 192–7.CrossRefGoogle Scholar
Grisafe, D.A. and White, W.B. (1964) Phase relations in the system PbO-CO2 and the decomposition of cerussite. Amer. Mineral., 49, 1184–98.Google Scholar
Hyde, B.G. and Andersson, S. (1989) Inorganic Crystal Structures. J. Wiley & Sons, New York.Google Scholar
Krivovichev, S.V. and Burns, P.C. (2000 a) Crystal chemistry of basic lead carbonates. II. The crystal structure of synthetic ‘plumbonacrite’. Mineral. Mag., 64, 1069–75.CrossRefGoogle Scholar
Krivovichev, S.V. and Burns, P.C. (2000 b) Crystal chemistry of basic lead carbonates. III. The crystal structure of Pb3O2(CO3) and NaPb2(OH)(CO3)2 . Mineral. Mag., 64, 1077–87.CrossRefGoogle Scholar
Krivovichev, S.V. and Filatov, S.K. (1999) Structural principles for minerals and inorganic compounds contai ning anion-centered tetrahedra. Amer. Mineral., 84, 1099–106.CrossRefGoogle Scholar
Krivovichev, S.V., Filatov, S.K. and Semenova, T.F. (1998 a) Types of cationic complexes based on oxocentered tetrahedra [OM4] in the crystal structures of inorganic compounds. Russ. Chem. Rev., 67, 137–55.CrossRefGoogle Scholar
Krivovichev, S.V., Filatov, S.K. and Zaitsev, A.N. (1998 b) The crystal structure of kukharenkoite-(Ce), Ba2 REE(CO3)3F, and an interpretation based on cation-coordinated tetrahedra. Canad. Mineral., 36, 809–15.Google Scholar
O’Keeffe, M. and Hyde, B.G. (1985) An alternative approach to non-molecular crystal structures with emphasis on the arrangement of cations. Struct. Bond., 61, 77-144.CrossRefGoogle Scholar
Pring, A., Birch, W.D. and Reller, A. (1990) An occurrence of lead oxycarbonate (PbCO3.PbO) as a mine fire product at Broken Hill, New South Wales. Mineral. Mag., 54, 647–9.CrossRefGoogle Scholar
Roberts, A.C., Stirling, J.A.R., Carpenter, G.J.C., Criddle, A.J., Jones, G.C., Birkett, T.C. and Birch, W.D. (1995) Shannonite, Pb2OCO3, a new mineral from the Grand Reef mine, Graham County, Arizona, USA. Mineral. Mag., 59, 305–10.CrossRefGoogle Scholar
Steele, I.M., Pluth, J.J. and Livingstone, A. (1998) Crystal structure of macphersonite (Pb4SO4(CO3)2(OH)2): comparison with leadhillite. Mineral. Mag., 62, 451–9.CrossRefGoogle Scholar
Warne, S.S.J. and Bayliss, P. (1962) The differential thermal analysis of cerussite. Amer. Mineral., 47, 1011–23.Google Scholar