Metal-complex catalysts in the hydrogenation of unsaturated glycerides of natural oils

Abstract

We study the zero Iemperaure limit of n simple model of slow relaxation without energy barriers, recently proposed by Ritort, as well as two other closely related models with a much faster relaxation. These models cm be mapped onto random walk problems, which allows for their analytic study. We analyse, in particular, a specific aspen of the f o m model, namely the existence of a bias leading to 'entropy barriers' and to a very slow relaxation. 5 Unit6 propre du CNRS, associ6e B I ' h l e N o m l e Superieure et B I'Universit6 de Paris Sud.

Reactions of Pd β-Diketonate Complexes with Triethylaluminium

“…The reactions of components of the systems based on β -diketonate or carboxylate complexes of metals of the first transition series with organoaluminium compounds are well studied [1][2][3][4][5][6]. However, the products of reactions of Pd or Pt bis(acetylacetonates) with trialkylaluminium, which show a high catalytic activity, are studied to a lesser extent [7,8].…”