Publications [#233372] of Andrew T. McPhail

Journal Articles

  1. Wells, RL; Holley, WK; McPhail, AT; Pitt, CG, "The First Organogallium Four-Membered Ring Compound with Arsenic, Halogen Mixed Bridging Synthesis and Crystal Structure of Ph2GaAs(SiMe3)2Ga(Ph)2Cl", Phosphorus, Sulfar, Silicon, Relat. Elem., 1989, 41(1-2), 15-19, Informa UK Limited [doi].
    (last updated on 2026/01/21)

    Abstract:
    Ph2GaAs (SiMe3)2Ga (Ph)2Cl (1) has been isolated from the products of the room temperature reaction of Ph2GaCl with (Me3Si)3As (reactants mixed in both a 2:1 and a 3:1 mole ratio). A mixture of 1 and [Ph2GaAs (SiMe3)2]2 (2) was isolated after heating a 1:1 mole ratio combination of the same reactants. Reaction of pure 2 [prepared from Ph2GaCl and LiAs(SiMe3)2] with Ph2GaCl resulted in the formation of (1). Prolonged heating of 1 produced a mixture of 2, Me3SiCl and unidentified products. Compound 1 was structurally characterized by a single-crystal X-ray analysis and shown to be the first organogallium four-membered ring compound with both an arsenic and a halogen bridge. The ring of 1 is clearly non-planar as evidenced by the fact that the Cl atom is displaced from the Ga-As-Ga' plane to yield a dihedral angle of 8.8° between the Ga-As-Ga' and Ga-Cl-Ga' planes. Various other features of the structure of 1 are discussed. © 1989, Taylor & Francis Group, LLC. All rights reserved.