[(Z)-O-Ethyl-N-(o-tolyl)thiocarbamato-κS](triphenylphosphine-κP)gold(I)

The title compound, [Au(C10H12NOS)(C18H15P)], features a linear geometry for the Au atom defined by the S and P donor atoms. A small deviation from the ideal geometry is noted and is ascribed to an intramolecular Au⋯O contact [2.936 (4) Å]. Inversion dimers are formed in the crystal structure mediated by C—H⋯π interactions between centrosymmetrically related o-tolyl residues [C⋯Cg = 3.532 (6) Å].

The title compound, [Au(C 10 H 12 NOS)(C 18 H 15 P)], features a linear geometry for the Au atom defined by the S and P donor atoms. A small deviation from the ideal geometry is noted and is ascribed to an intramolecular AuÁ Á ÁO contact [2.936 (4) Å ]. Inversion dimers are formed in the crystal structure mediated by C-HÁ Á Á interactions between centrosymmetrically related o-tolyl residues [CÁ Á ÁCg = 3.532 (6) Å ].
The gold atom in (I) exists in a linear geometry defined by an S,P donor set, Table 1 and Fig. 1. The small deviation from linearity is due to the close approach of the O1 atom to Au [Au···O = 2.936 (4) Å]. The anion, having C1-S1 = 1.768 (5) Å and C1N1 = 1.254 (6) Å, coordinates as a thiolate ligand. The configuration about the C1N1 double bond is Z.

S2. Experimental
Compound (I) was prepared following the standard literature procedure from the reaction of Ph 3 AuCl and EtOC(S)N(H) (o-tolyl) in the presence of base (Hall et al., 1993).

S3. Refinement
The H atoms were geometrically placed (C-H = 0.94-0.98 Å) and refined as riding with U iso (H) = 1.2-1.5U eq (C). The maximum and minimum residual electron density peaks of 1.62 and 1.26 e Å -3 , respectively, were located 0.81 Å and 0.92 Å from the Au atom.  Molecular structure of (I) showing atom-labelling scheme and displacement ellipsoids at the 50% probability level.

[(Z)-O-Ethyl-N-(o-tolyl)thiocarbamato-κS](triphenylphosphine-κP)gold(I)
Crystal data [Au(C 10 Special details Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'s involving l.s. planes. Refinement. Refinement of F 2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F 2 , conventional R-factors R are based on F, with F set to zero for negative F 2 . The threshold expression of F 2 > 2σ(F 2 ) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F 2 are statistically about twice as large as those based on F, and R-factors based on ALL data will be even larger.  (7) C28-H28 0.9400 C11-C12 1.387 (7)