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AuSO 4 : A True Gold(II) Sulfate with an Au 2 4+ Ion
Author(s) -
Wickleder Mathias S.
Publication year - 2001
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 - 10.1002/1521-3749(200109)627:9<2112::aid-zaac2112>3.0.co;2-2
Subject(s) - orthorhombic crystal system , denticity , chemistry , sulfuric acid , crystal structure , crystallography , chelation , ligand (biochemistry) , polymer chemistry , stereochemistry , inorganic chemistry , biochemistry , receptor
Red single crystals of AuSO 4 have been obtained by evaporating a solution of Au(OH) 3 in concentrated sulfuric acid. The crystal structure (orthorhombic, Pbca, Z = 8, a = 854.9(2), b = 824.9(3), c = 1001.1(4) pm) exhibits the dumbbell shaped Au 2 4+ cation (bond length Au–Au: 249 pm) which is coordinated by two chelating and two monodentate SO 4 2– groups. The monodentate sulfate anions act as chelating ligand to another Au 2 4+ ion leading to infinite sheets according to $^2_\infty$ [(Au 2 )(SO 4 ) 4/2 ] which are stacked in [001] direction.