Crystal Growth and Structure Determination of Pigment Orange 82 |
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Authors: | Martin Kaiser Aron Wosylus Birgit Gerke Rainer Pttgen Karel Proke Michael Ruck Thomas Doert |
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Institution: | Martin Kaiser,Aron Wosylus,Birgit Gerke,Rainer Pöttgen,Karel Prokeš,Michael Ruck,Thomas Doert |
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Abstract: | The crystal structure of the important industrial orange pigment PO82, major part of the BASF Colors & Effects® product Sicopal® Orange K/L 2430, was solved from combined X‐ray single crystal, X‐ray and neutron powder diffraction, 119Sn Mössbauer spectroscopy, transmission electron microscopy, electron diffraction, and chemical analyses. The structure contains Keggin type clusters composed of four M3O13] trimers consisting each of three MO6 octahedra that share edges and one common oxygen atom connecting the trimers to the central ZnO4 tetrahedron. The octahedrally coordinated metal atom position is mixed occupied by Ti4+, Sn4+, and Zn2+. Adjacent Keggin clusters share vertices and are further interconnected to four ZnO4 tetrahedra. This framework of interconnected MO6 octahedra and ZnO4 tetrahedra contains channels along 110], in which the Sn2+ cations are located. |
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Keywords: | Pigment Keggin cluster Structure determination Neutron diffraction Mö ssbauer spectroscopy |
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