Add time:07/31/2019         Source:sciencedirect.com

The preparation of a series of gold(I) compounds of general formulae (LH2)(AuBr2) and (LH2)2- (AuBr2)Br (LH2+: 5-arylazoniumuracil cations) is described. The crystal structure of (DZH2)2(AuBr2)- Br·H2O (DZH2+ 6-amino-1,3-dimethyl-5-phenylazoniumuracil cation) was determined. The crystals are triclinic; space group P1; a=12.188(1), b = 17.404(2), c = 7.764(1) Å, α = 99.79(1), β = 99.45(1), γ = 86.94(1)°; Z = 2; R = 0.030 for 3593 observed reflections and 310 variable parameters. The structure is ionic, the asymmetric unit contains one AuBr2− anion, two crystallographically independent DZH2+ cations, one isolated Br− anion and one molecule of water of crystallization. In each DZH cation the additional proton is bonded to a nitrogen atom of the azo group. The growth inhibition of HeLa cells by these bromogold(I) salts has been tested.

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