Chlorido{N-[2-(diphenylphosphanyl)benzylidene]-2-(2-thienyl)ethanamine-κ2 N,P}methylpalladium(II) dichloromethane hemisolvate

In the title compound, [Pd(CH3)Cl(C25H22NPS)]·0.5C2H2Cl2, the PdII atom is coordinated by the N,P-bidentate ligand, a methyl group and a chloride ion, generating a distorted square-planar PdCClNS coordination geometry, with the N and Cl atoms trans. The thiophene ring is equally disordered over two orientations and the dichloromethane solvent molecule is disordered about an inversion centre.

In the title compound, [Pd(CH 3 )Cl(C 25 H 22 NPS)]Á0.5C 2 H 2 Cl 2 , the Pd II atom is coordinated by the N,P-bidentate ligand, a methyl group and a chloride ion, generating a distorted square-planar PdCClNS coordination geometry, with the N and Cl atoms trans. The thiophene ring is equally disordered over two orientations and the dichloromethane solvent molecule is disordered about an inversion centre.

Experimental
Crystal data [Pd(CH 3  We acknowledge the University of the Western Cape and the Ministry of Health of Botswana (WMM) for funding. dichloromethane exhibits high thermal motions and were refined isotropically with temperature factors in the range of 0.101 -0.122. It is situated close to a centre of inversion. The five-membered ring was disordered and shows two orientations each at 50% s.o.f.: the first ring C7, C8A, C9A, C10A and S1A (ring A) and the second ring C7, C8B, C9B, C10B and S1B (ring B). Ring A and ring B share two common atom sites at C7 and C10A (or C10B). C10A and C10B are on the same site and refined anisotropically with the same temperature factors. The maximum and minimum deviations from the least-squares planes of both rings are 0.086 (4) Å and -0.084 (3) Å for C7 and S1A in ring A, 0.095 (5) Å and -0.090 (3) Å for C7 and S1B in ring B. Angle from the least-square plane of ring A to that of ring B is 36.2 (3)°.

Experimental
The iminophosphine heterocyclic ligand was prepared via the condensation reaction of 2-(diphenylphosphino)benzaldehyde with 2-thien-2-ylethanamine. The ligand was further refluxed with an equimolar Pd(cod)Cl 2 in dichloromethane and gave over 80% yield of a yellow complex. Light-yellow blocks of (I) were grown via slow diffusion of a dichloromethane solution of the complex in hexane a 4

Refinement
The solvent molecule dichloromethane exhibits high thermal motions and were refined isotropically with temperature factors in the range of 0.101 -0.122. It is situated on the centre of inversion. Therefore only half of the molecule is in the asymmetric unit and it is modelled as a whole molecule with 50% site occupancy factor (s.o.f.). The 5 member ring was disordered and shows two preferred orientations each at 50% s.o.f.: the first ring C7, C8A, C9A, C10A and S1A (ring A) and the second ring C7, C8B, C9B, C10B and S1B (ring B). Ring A and ring B share two common atom sites at C7 and C10A (or C10B).
C10A and C10B are on the same site and refined anisotropically with the same temperature factors. The maximum and minimum deviations from the least-squares planes of both rings are 0.086 (4) Å and -0.084 (3) Å for C7 and S1A in ring A, 0.095 (5) Å and -0.090 (3) Å for C7 and S1B in ring B. Angle from the least-square plane of ring A to that of ring B  Fig. 1. : The molecular structure of (I) showing 30% displacement ellipsoids (all hydrogen atoms omitted for clarity). The solvent dichloromethane molecule is excluded.

Special details
Experimental. Half sphere of data collected using SAINT strategy (Bruker, 2006). Crystal to detector distance = 50 mm; combination of φ and ω scans of 0.5°, 50 s per °, 2 iterations.
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes.
Refinement. The solvent molecule dichloromethane exhibits high thermal motions and were refined isotropically with temperat-