title: Heterochiral triangulo nickel complex as evidence of a large positive nonlinear effect in catalysis.
abstract: A novel triangulo complex was generated by heating, in vacuo, a racemic C2-symmetric octahedral nickel(II) diamine complex. The trinuclear species was identified by single-crystal X-ray diffraction, which revealed a 2:1 ligand stereochemistry relationship in each unit. This solid-state structure evidences the hypothesis that a 1:2 stereochemical relationship lies at the heart of the strong positive nonlinear effect observed in enecarbamate aldol-like reactions catalyzed by nickel(II) diamine complexes.
authors.affiliation: Department of Chemistry, University of Bath, Bath BA2 7AY, England. j.fossey@bath.ac.uk
authors.forename: John S
authors.initials: JS
authors.lastname: Fossey
authors.forename: Ryosuke
authors.initials: R
authors.lastname: Matsubara
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kiyohara
authors.forename: Shu
authors.initials: S
authors.lastname: Kobayashi
mesh_terms: D002384:Catalysis; D018360:Crystallography, X-Ray; D008958:Models, Molecular; D009532:Nickel / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D009532:Nickel