Publications [#233584] of Andrew T. McPhail

Journal Articles

  1. McPhail, AT; Komson, RC; Engel, JF; Quin, LD, "Structural Investigations of Nickel Complexes. Part I. Crystal and Molecular Structure of cis-Dichlorobis(1-benzyl{(triangle3-phospholen)nickel(II)", J. Chem. Soc.. Dalton, 1972(7), 874-878, Royal Society of Chemistry (RSC) [doi].
    (last updated on 2026/01/21)

    Abstract:
    The crystal and molecular structure of the title compound has been determined by single-crystal X-ray analysis with 3112 independent reflections and refined to R 0·095. The crystals are monoclinic, space-group P2 1/c, with a = 10·40(2), b = 12·91(2), c = 18·00(3) Å, β = 112·67(10)°; Z = 4. The molecule has approximate C2 symmetry and co-ordination around the nickel atom is tetrahedrally distorted square planar with mean Cl-Ni-P angles of 164·7°. A high trans-influence of the tertiary phosphine ligands is noted in the complex. The mean Ni-P [2·154(2) Å] and Ni-Cl [2·212(2) Å] bond lengths are respectively 0·12 shorter and 0·05 Å longer than the corresponding values derived from the sum of the covalent radii. The phospholen rings are puckered, mean C-P-C angle 94·0°± 0·4°, and the mean phosphorus atom displacement from the best plane through the ring carbon atoms is 0·385 Å.