Abstract: The invention relates to platinum complexes, to a method for preparing the same and to the use thereof for the chemical vapor deposition of metal platinum. The chemical vapor deposition of platinum onto a substrate is made from a platinum organo-metal compound the includes a ligand with a cyclic structure including at least two non-adjacent C?C double bonds, and the platinum organo-metal compound has a square-lane structure in which the platinum is bonded to each of the C?C double bonds of the ligand, thereby forming a (C?C)—Pt—(C?C) of 60° to 70°.

Abstract: The invention relates to platinum complexes, to a method for preparing the same and to the use thereof for the chemical vapour deposition of metal platinum. The chemical vapour deposition of platinum onto a substrate is made from a platinum organometallic compound that includes a ligand with a cyclic structure including at least two non-adjacent C?C double bonds, and the platinum organometallic compound has a square-plane structure in which the platinum is bonded to each of the C?C double bonds of the ligand, thereby forming a (C?C)—Pt—(C?C) of 60° to 70°.

Abstract: A process is described in which an unsaturated fat is reacted with ethylene in a metathesis reaction in the presence of at least one non-aqueous ionic liquid to produce both an olefinic fraction and a composition of monoalcohol or polyol esters. Particular application to an oleic sunflower seed oil, an oleic rapeseed oil or to a mixture of monoalcohol esters of said oils, the process producing both an olefinic fraction and a monoalcohol or glycerol esters composition generally having more than half of its chains constituted by unsaturated C10 chains.