X-ray crystallographic studies of a bimetallic cis-Mo(CO) 4(PPh2NH2CH2CH2N=CHC 6H4-o-O)2Cu Complex, the Starting Material, cis-Mo(CO)4(PPh2Cl)2, and the Reaction Intermediates cis-Mo(CO)4(PPh2NH2CH 2CH2NH2)

Academic Article

Abstract

  • In this paper, we report the crystal structures of a bimetallic trans-[cis-Mo(CO)4[PPh2NHCH2CH 2N=CH(o-C6H4O)]2]Cu complex (monoclinic space group P2/c), the cis-Mo(CO)4(PPh 2Cl)2 starting material, (monoclinic space group C2/c) and the two reaction intermediates cis-Mo(CO)4(PPh2NHCH 2CH2NH2)2 (monoclinic space group C2/c) and cis-Mo(CO)4(PPh2NHCH2CH 2N=CH(o-C6H4OH)2 (orthorhombic space group P2(1)2(1)2). The dihedral angle between the o-salicylaldiminato groups in the bimetallic complex (36.32(18)°) is considerable large than that in the previously reported trans-[cis-Mo(CO)4-[PPh2NHCH 2CH2N=CH(o-C6H4O)]2]Ni complex (12.6°) demonstrating that the coordination preferences of the metal dications have significant effects on the conformations of the bimetallic complexes. The orientations of the phosphinamide ligands bimetallic complex are quite different than are those in the intermediates due to the steric restraints imposed by chelation to the Cu2+. © 2011 Springer Science+Business Media, LLC.
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    Author List

  • Duffey C; Stepleton S; Anderson ME; Cox D; Ready M; Byrd H; Bloomfield CA; Freeman JL; Gray GM
  • Start Page

  • 1560
  • End Page

  • 1567
  • Volume

  • 41
  • Issue

  • 10