title: Synthesis, X-ray, and electronic structures of a new nickel dibromide complex. Activity in the regioselective catalyzed dimerization of ethylene into 1-butene.
abstract: Reaction of the bis-(3,4)-dimethylphosphole-Xanthene 1b with [NiBr2(DME)] afforded a new nickel(II) dibromide complex, 2. Both its color and its NMR behavior change with temperature and solvent due to changes in the spin state of the complex. This led us to study the complex spin states using DFT calculations. Furthermore, the activity of 2 in catalyzed ethylene dimerization was studied, revealing both high activity and selectivity toward the production of 1-butene.
authors.affiliation: Laboratoire Hétéroéléments et Coordination, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex, France.
authors.forename: Guilhem
authors.initials: G
authors.lastname: Mora
authors.forename: Steven
authors.initials: S
authors.lastname: van Zutphen
authors.forename: Christian
authors.initials: C
authors.lastname: Klemps
authors.forename: Louis
authors.initials: L
authors.lastname: Ricard
authors.forename: Yves
authors.initials: Y
authors.lastname: Jean
authors.forename: Pascal
authors.initials: P
authors.lastname: Le Floch