ISSN:
1434-4475
Schlagwort(e):
Trisilver(I) amidosulfate monohydrate
;
Crystal structure
;
Planes of silver
;
Penta coordinated nitrogen
;
Colour of Ag(I) compounds
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
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, β=86.49 (3)°,V=1125.5 Å3,Z=8,d x =5.142 Mgm−3, MoKα, λ=0.71069 Å (graphite monochromator), μ=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.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00815321
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