Quick
Search: 		  
advanced search
 GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help 
The Canadian Mineralogist Email Content Delivery
JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
The Canadian Mineralogist; August 2007; v. 45; no. 4; p. 847-855; DOI: 10.2113/gscanmin.45.4.847
© 2007 Mineralogical Association of Canada
This Article
Right arrow Résumé
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Dubost, V.
Right arrow Articles by Makovicky, E.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

Articles

THE CRYSTAL STRUCTURE OF Ni9.54Pd7.46S15

Vincent Dubost§, Tonci Balic-Zunic and Emil Makovicky

Geological Institute, University of Copenhagen, Øster Voldgade 10, DK–1350 Copenhagen, Denmark

E-mail address: emilm{at}geol.ku.dk

The crystal structure of the synthetic compound Ni9.54Pd7.46S15 has been solved and refined to an R-factor of 3.3_. It belongs to the space group PmFormulam, with a cell edge a of 9.872 Å. It is isostructural with the published structures of Pd17Se15 and Rh17S15. In the structure of Ni9.54Pd7.46S15, Pd is primarily concentrated in the square coordination sites, whereas nickel is concentrated in the flattened tetrahedral and regular octahedral sites. An interpretation of the structure of Ni9.54Pd7.46S15 in terms of anioncentered polyhedra reveals features common with pentlandite. Despite the mixed character of the cationic sites, this compound does not appear to be an intermediate member of a hypothetical solid-solution Pd17S15 – Ni17S15. The stability of Ni9.54Pd7.46S15 results from the size fit of the two M–S substructures: a palladium-bearing substructure, with metal–metal bonds, and a nickel-bearing substructure. The site partitioning observed in this structure suggests a similar one for the minor elements (Cu and Hg) in natural palladseite. Because of cation coordinations, the structure is believed to be incompatible with a significant incorporation of divalent iron.

Keywords: Ni9.54Pd7.46S15, crystal structure, Rh17S15 structure-type.






JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2008 by Mineralogical Association of Canada