Crystal Structures of Iodo(triphenylphosphine)gold(I) and Bis[iodo(trimethylphosphine)gold(I)].

1,2-Dicyano-1,2-bis(imidazolidine-2-thione)digold(I) and 2,2-dicyano-1,1-bis(dimethylthiourea)digold(I)

“…Gold compounds of this sort are well known. Bis[iodo(trimethylphosphine)gold(I)] (Ahrland et al, 1987) is an example of a non-polar AuÐAu complex (AuÐAu 3.169 A Ê and torsion angle 70 ), bis(imidazolidene-2-thione)gold(I) diiodoaurate (Friedrichs & Jones, 1999) is an example of a polar isomer with etu as a ligand (3.270 A Ê and 74 ) and dicyanobis[tris(2cyanoethyl)phosphine]digold (Hussain et al, 1996) is an example containing the Au(CN) 2 group (3.270 A Ê and 80 ).…”

The fascinating implications of new results in gold chemistry

“…With secondary or even tertiary phosphines, the interactions are reduced further, but dimers with parallel or perpendicular L-Au-X axes can still be found [39][40][41], until only monomers are left, e.g. with R3P ligands, where R = C6H5 (Figure 6), [42].…”

Aurophilicity under pressure: a combined crystallographic and in situ spectroscopic study

“…12 A comparative study of the crystal structures of [AuI(PPh 3 )] and [AuI(PMe 3 )] revealed dimer formation in the latter through AuÁ Á ÁAu contacts that are significantly shorter than in the former. 13 Surprisingly, although high pressure crystallography offers a more versatile method of controlling and investigating aurophilic interactions by forcing Au(I) centres closer together, its potential remains largely untapped, as evidenced by the very small number of such reports in the literature. The single-component molecular metal [Au(tmdt) 2 ] (tmdt = trimethylenetetrathiafulvalenedithiolate) reported by Kobayashi et al in 2009 was the first crystallographic study of the properties of a gold complex as a function of pressure, although it features SÁ Á ÁS rather than AuÁ Á ÁAu contacts.…”