The Synthesis, Molecular Structures, and Supramolecular Architecture of Amine Adducts of Bis(pentafluorophenyl)zinc

Autor: J. Mountford, Andrew, J. Lancaster, Simon, J. Coles, Simon, N. Horton, Peter, L. Hughes, David, B. Hursthouse, Michael, E. Light, Mark
Zdroj: Organometallics; July 2006, Vol. 25 Issue: 16 p3837-3847, 11p
Abstrakt: A series of eight adducts of the form (RR‘R‘ ‘N)2·Zn(C6F5)2have been prepared through treatment of the Lewis acid Zn(C6F5)2with 2 equiv of the corresponding amine (R tBu or CH2Ph, R‘ R‘ ‘ H; R R‘ Me or CH2Ph, R‘ ‘ H; R Me, R‘ CH2Ph, R‘ ‘ H; RR‘ cyclo-C4H8or cyclo-C5H10, R‘ ‘ H; R R‘ Me, R‘ ‘ CH2Ph). The solid-state structures of all eight compounds have been elucidated by single-crystal X-ray diffraction. In each case the geometry about the zinc atom is essentially tetrahedral. However, there is considerable variation in the supramolecular architectures in the solid state. A number of types of noncovalent interactions are observed including phenyl−pentafluorophenyl stacking, X−H···F−C contacts, and offset face-to-face contacts between pentafluorophenyl rings, giving rise to one-, two-, and three-dimensional supramolecular structures. In our examples we find that no one intermolecular interaction predominates.
Databáze: Supplemental Index