Oxidative addition reactions to novel heterotrinuclear iridium complexes with mixed bridging ligands. Crystal structure of [{Ir(μ-pz)(μ-StBu)I2(CO)[P(OMe)3]} 2Pd]

  1. Pinillos, M.T. 1
  2. Elduque, A. 1
  3. Martín, E. 1
  4. Navarro, N. 1
  5. Lahoz, F.J. 1
  6. López, J.A. 1
  7. Oro, L.A. 1
  1. 1 Instituto de Nanociencia y Materiales de Aragón
    info

    Instituto de Nanociencia y Materiales de Aragón

    Zaragoza, España

    ROR https://ror.org/031n2c920

Revista:
Inorganic Chemistry

ISSN: 0020-1669

Año de publicación: 1995

Volumen: 34

Número: 1

Páginas: 111-115

Tipo: Artículo

SCOPUS: 2-s2.0-0000844287 GOOGLE SCHOLAR

Otras publicaciones en: Inorganic Chemistry

Repositorio institucional: lock_openAcceso abierto Editor

Resumen

The formation and properties of trinuclear heterobridged complexes of general formula [{Ir(μ-pz)(μ-StBu)L2}2Pd] [L2 = cycloocta-1,5-diene 1, (CO)2 2, (CO)[P(OMe)3] 3; pz = pyrazolate] are reported. Complex 3 reacts with methyl iodide or mercury(II) iodide to give compounds [{Ir2(μ-pz)2(μ-StBu) 2I(X)(CO)2[P(OMe)3]2}Pd] [X = Me (4) I (5)]. Compound 5 undergoes a further oxidative addition with I2 to form [{Ir(μ-pz)(μ-StBu)I2(CO)[P(OMe)3]} 2Pd], 6. Compound 6 can be also obtained by direct addition of iodine to complex 3 in a 2:1 molar ratio. The molecular structure of compound 6 has been determined by X-ray diffraction methods. The complex crystallizes in the triclinic system, space group P1, with a = 8.763(1) Å, b = 12.023(2) Å, c = 12.713(2) Å, α = 102.086(6)°, β = 94.108(7)°, γ = 109.174(8)°, and Z = 1. Refinement by full-matrix least-squares techniques gave final R = 0.0322. Complex 6 is trinuclear with two octahedral "IrI2(CO)[P(OMe)3]" moieties symmetrically connected to a central square-planar Pd atom bridged through the nitrogens of a pyrazolate group and the S atom of a 2-methyl-2-propanethiolate ligand. © 1995 American Chemical Society.