X-ray single crystal structures of Hg(AuF6)2 and AgFAuF6 |
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Authors: | Zoran Mazej Evgeny Goreshnik Gašper Tav?ar |
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Institution: | Department of Inorganic Chemistry and Technology, Jo?ef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia |
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Abstract: | Hg(AuF6)2 crystallizes at 200 K in the orthorhombic space group Pbcn (No. 60) with a = 917.67(7) pm, b = 971.59(8) pm, c = 962.04(8) pm, and Z = 4. Mercury atoms are coordinated by eight fluorine atoms with six short and two long Hg-F contacts. HgF8 polyhedra share their four vertices and two edges with six AuF6 units forming a tridimensional framework.The results of X-ray diffraction analysis on single crystals of AgFAuF6 are in agreement with previously known powder X-ray diffraction data (Casteel et al, J. Solid State Chem. 96 (1992) 84-96). AgFAuF6 crystallizes orthorhombic in the space group Pnma (No. 62), a = 717.06(7) pm, b = 761.67(7) pm, c = 1013.61(10) pm at 200 K, Z = 4. |
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Keywords: | Mercury Gold Silver Hexafluoroaurates Crystal structure |
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