Kristallstruktur von Trisilber(I)amidosulfat Monohydrat,Ag3SO3N · H2O |
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| Authors: | Ferdinand Belaj Christoph Kratky Edgar Nachbaur Alois Popitsch |
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| Institution: | (1) Institut für Physikalische Chemie, Universität Graz, A-8010 Graz, Österreich;(2) Present address: Institut für Mineralogie und Kristallographie, Universität Wien, A-1010 Wien, Österreich;(3) Institut für Anorganische Chemie, Universität Graz, A-8010 Graz, Österreich |
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| Abstract: | An X-ray crystal structure analysis of yellow Ag3SO3N · H2O was carried out at room temperature:M=435.69, monoclinic, P21/n,a=11.628 (5) Å,b=8.058 (4) Å,c=12.034 (5) Å,  =86.49 (3)°,V=1125.5 Å3,Z=8,d
x
=5.142 Mgm–3, MoK ,  =0.71069 Å (graphite monochromator),  =10.5 mm–1,R=5.44%,R
w
=5.85% (877 reflections, 118 parameters). The structure contains Ag planes with Ag-Ag distances shorter than in metallic silver. The nitrogen atoms of the SO3N anion are covalently bonded to 4Ag atoms of these Ag planes, thus assuming the extraordinary coordination number of 5. The five crystallographically independent Ag atoms forming the Ag planes have approximate linear N-Ag-N coordination. In addition, the structure contains two Ag atoms which are ionically coordinated to 4 resp. 5O atoms of SO3N and water. The colour-structure correlation of Ag(I) compounds with colourless anions is discussed.Herrn Prof. Dr. mult.V. Gutmann zum 65. Geburtstag gewidmet. |
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| Keywords: | Trisilver(I) amidosulfate monohydrate Crystal structure Planes of silver Penta coordinated nitrogen Colour of Ag(I) compounds |
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