Electrophilic additions of mono-, di- and tri-gold units to the isoelectronic 2- and 2- anions

Article abstract of DOI:10.1016/0022-328X(95)05579-E

The reaction of 2 with or <(AuCl)2(μ-diphos)> in tetrahydrofuran gives the mixed manganese-gold clusters 3-H)(μ-AuPR3)> (R = Ph (1) or Me (2)) and 2<3-H)Au>2(μ-diphos)> (diphos = dppe (3) or dppm (4)).The reaction between the same manganese anion and <(AuCl)3(triphos)> produces <3-H)Au>3(triphos)>^3- (5), <3-H)Au>2(triphos)(AuCl)>^2- (6) or <3-H)Au>(triphos)(AuCl)2>^- (7), depending on the molar ratio of the reagents.Isoelectronic iron-goldcomplexes <(3-x)(triphos)(AuCl)x>^(3-x)- (x = 0 (8), 1 (9) or 2 (10) were obtained by the reaction of the trinuclear ^2- anion with <(AuCl)3(triphos)> in the appropriate molar ratio.Attempts to obtain mixed manganese-iron-gold clusters resulted in a mixture of compounds, the nature of which has been explained in terms of metal-ligand redistribution processes.Keywords: Gold; Manganese; Iron; Metal-metal bonds; Clusters; Electrophilic addition