Molybdenum(IV) complexes with terminal imido- and nitrido-ligands the crystal and molecular structures of [MoN(N3)(Ph2P(CH2)2PPh2)2] and [MoBr(NH)(Ph2P(CH2)2PPh2)2] Br·MeOH

J. R. Dilworth, P. L. Dahlstrom, J. R. Hyde, J. Zubieta

Research output: Contribution to journalArticle

43 Scopus citations

Abstract

The structures of [MoN(N3)(Ph2P(CH2)2PPh2)2] (I) and [MoBr(NH)(Ph2P(CH2)2PPh2] Br·MeOH (II) have been determined. Crystal data (I): Space Group Pl. a = 11540(2), b = 13.102(2), c = 9.612(2) Å, α = 99.58(1), β = 108.88(1), γ = 110.46(1)°, V = 1211.50 Å3, Z = 1;2731 reflections to give R = 0.061. Crystal data (II): Space Group P21/n; a = 18.111(2) Å, b = 16.548(3), Å, c = 18.064(2) Å, α = 90.0°, β = 105.30(1)°, γ = 90.0°; V = 5395.15 Å3; Z = 4; 1837 reflections to give R = 0.054. In I the geometry is pseudooctahedral and the Mo-nitride distance is unusually long at 1.79(2) Å. The trans azido-group is nearly linear (<MoN1N2 = 167.1(11)°) suggesting strong π-interaction of the N-3 ion with the metal. In II the overall geometry is again pseudo-octahedral with a metal-imido nitrogen distance of 1.73(2) Å lying in the normal range for imido complexes. The trans Mo-Br distance (2.612(4) Å) suggests that the imido-ligand exerts no trans influence.

Original languageEnglish (US)
Pages (from-to)21-28
Number of pages8
JournalInorganica Chimica Acta
Volume71
Issue numberC
DOIs
StatePublished - 1983
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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