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Crystal Structure Determination of Ag 3 Pb 4 Bi 11 Se 22 by Microfocussed Synchrotron Radiation
Author(s) -
Heinke Frank,
Meyer Ralf,
Wagner Gerald,
Oeckler Oliver
Publication year - 2015
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201400559
Subject(s) - crystallography , synchrotron radiation , ribbon , crystal structure , crystallite , transmission electron microscopy , structure type , materials science , x ray crystallography , x ray , type (biology) , mineralogy , analytical chemistry (journal) , chemistry , diffraction , optics , physics , geology , nanotechnology , paleontology , composite material , chromatography
The structure of a Ag 3 Pb 4 Bi 11 Se 22 microcrystal was determined using microfocussed synchrotron radiation. Several crystals from an inhomogeneous sample were characterized by transmission electron microscopy, which revealed the unit‐cell dimensions and the quarternary composition. A crystallite that was pre‐characterized this way was used for the microfocus experiment. The structure of Ag 3 Pb 4 Bi 11 Se 22 [space group C 2/ m , a = 13.853(3) Å, b = 4.2108(8) Å, c = 19.721(4) Å, β = 104.57(3)°, Z = 1, R 1 (all) = 0.032] is similar to that of the mineral dantopaite, which belongs to the pavonite‐type family. Slabs that correspond to sections of the NaCl structure type are interconnected by ribbon‐like elements from the GeS (SnS) structure type.