Interpretation of selected structures of the bismuthinite-Aikinite series as commensurately modulated structures
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Standard
Interpretation of selected structures of the bismuthinite-Aikinite series as commensurately modulated structures. / Makovicky, Emil; Petricek, Vaclav.
I: The Canadian Mineralogist, Bind 44, 2006, s. 189-206.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Interpretation of selected structures of the bismuthinite-Aikinite series as commensurately modulated structures
AU - Makovicky, Emil
AU - Petricek, Vaclav
PY - 2006
Y1 - 2006
N2 - The bismuthinite - aikinite (Bi2S3 - CuPbBiS3) series of ordered derivatives (superstructures) is based on the incremental Bi + vacancy " style="width: 13px; height: 7px; border-width: 0px"/> Pb + Cu substitution. Selected structures of this series, gladite, salzburgite, paarite and krupkaite, were refined as commensurately modulated structures using the superspace approach. The superspace group Pmcn(0ß0)00s was used for all these structures, ß assuming the value of 1/3, 1/4, 1/5, and 2 in the above order. Two independent large-cation positions, one Cu position (in oversubstituted members, two) and three S positions were refined for the sequence of one or three to five subcells forming the above structures using the summation of sinusoidal functions for positional and displacement parameters. In this paper, we describe, in terms intended for non-specialists, our choice of the superspace group, its application to individual superstructures, the details of the structure refinement, and the structural interpretation of the results.
AB - The bismuthinite - aikinite (Bi2S3 - CuPbBiS3) series of ordered derivatives (superstructures) is based on the incremental Bi + vacancy " style="width: 13px; height: 7px; border-width: 0px"/> Pb + Cu substitution. Selected structures of this series, gladite, salzburgite, paarite and krupkaite, were refined as commensurately modulated structures using the superspace approach. The superspace group Pmcn(0ß0)00s was used for all these structures, ß assuming the value of 1/3, 1/4, 1/5, and 2 in the above order. Two independent large-cation positions, one Cu position (in oversubstituted members, two) and three S positions were refined for the sequence of one or three to five subcells forming the above structures using the summation of sinusoidal functions for positional and displacement parameters. In this paper, we describe, in terms intended for non-specialists, our choice of the superspace group, its application to individual superstructures, the details of the structure refinement, and the structural interpretation of the results.
KW - Faculty of Science
KW - bismuthinite – aikinite serier
KW - krupkaite
KW - paarite
KW - salzburgite
KW - gladite
KW - bismuthinite – aikinite series
KW - commensurately modulated structures
KW - superspace approach
KW - krupkaite
KW - paarite
KW - salzburgite
KW - gladite
U2 - 10.2113/gscanmin.44.1.189
DO - 10.2113/gscanmin.44.1.189
M3 - Journal article
VL - 44
SP - 189
EP - 206
JO - Canadian Mineralogist
JF - Canadian Mineralogist
SN - 0008-4476
ER -
ID: 80819