Crystal structure of chlorido[trans-1-(diphenylphosphanethioyl-κS)-2-(diphenylphosphanoyl)ethene]gold(I) dichloromethane hemisolvate

The title compound, [AuCl(C26H22OP2S)]·0.5CH2Cl2, crystallizes with atrans-O—P...P—S geometry of the groups either side of the C=C double bond, which prevents any intramolecular contact between the Au and O atoms. The AuIatom exhibits a nearly linear coordination [Cl—Au—S = 177.55 (4)°]. The molecules associate to form broad ribbons parallel to thecaxisviatwo C—H...O, one C—H...Cl(Au) and one Au...Cl interaction.

Crystal structure of tris(3-methyl-1H-pyrazol-1-yl)methane

The title molecule, C13H16N6, crystallizes from hexane as a molecular crystal with no strong intermolecular interactions (the shortest C—H...N contact is longer than 3.38 Å). A relatively short intramolecular contact (3.09 Å) has a C—H...N angle of 118° which is quite small to be still considered a hydrogen bond. The three pyrazole rings form a propeller-like motif, with one methylpyrazole unit almost perpendicular to the mean plane of the three rings [82.20 (6)°]. The other two methylpyrazole units, with nitrogen donor atoms oriented in opposite directions, are oriented at 67.26 (6) and 72.53 (6)° to the mean plane.

Tris(tri-o-tolyl phosphite-κP)nickel: a coordinatively unsaturated nickel(0) complex

A previously reported complex, [Ni(C21H21O3P)3] or Ni[P(O-o-tolyl3)3] [Gosser & Tolman (1970).Inorg. Chem.9, 2350–2353], crystallized in the monoclinic space groupC2/c, and its solid-state structure was determined. The Ni0atom adopts an essentially trigonal-planar geometry as a consequence of the steric congestion of the ligands. Three of the phenoxy rings on two phosphite ligands were modelled as being disordered over two sets of sites, and the occupancy factors were set at 0.5 after trial refinement and intramolecular contact considerations. The exact ligand cone angle has been calculated to be 163.6°.

5-{[4-(4-Bromophenyl)thiazol-2-yl]aminomethylene}-2,2-dimethyl-1,3-dioxane-4,6-dione

In the title compound, C16H13BrN2O4S, the 1,3-dioxane-4,6-dione ring exhibits an envelope conformation. The amino H atom makes an intramolecular contact to a carbonyl O atom, forming a six-membered ring.