Synthesis and hydroformylation reaction of dinuclear rhodium(I) complexes with mixed bridging ligands. X-Ray structure of [rh2(μ-pz)(μ-SBut)(CO)2{P(OMe) 3}2]

  1. Claver, C. 3
  2. Kalck, P. 3
  3. Ridmy, M. 3
  4. Thorez, Alain. 3
  5. Oro, L.A. 1
  6. Pinillos, M.T. 1
  7. Apreda, M.C. 2
  8. Cano, F.H. 2
  9. Foces-Foces, C. 2
  1. 1 Instituto de Nanociencia y Materiales de Aragón
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    Instituto de Nanociencia y Materiales de Aragón

    Zaragoza, España

    ROR https://ror.org/031n2c920

  2. 2 Instituto de Química Física Rocasolano
    info

    Instituto de Química Física Rocasolano

    Madrid, España

    ROR https://ror.org/03xk60j79

  3. 3 Laboratoire de Catalyse et de Chimie Fine, Ecole Nationale Superieure de Chimie, 118 route de Narbonne, 31077, Toulouse Cedex, France
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Revista:
Journal of the Chemical Society, Dalton Transactions

ISSN: 1472-7773

Año de publicación: 1988

Volumen: 6

Páginas: 1523-1528

Tipo: Artículo

DOI: 10.1039/DT9880001523 SCOPUS: 2-s2.0-37049066655 GOOGLE SCHOLAR

Otras publicaciones en: Journal of the Chemical Society, Dalton Transactions

Resumen

The preparation and properties of dinuclear complexes containing one azolate (az) and one t-butylthio group as bridging ligands are described. Bubbling of carbon monoxide through dichloromethane solutions of [Rh2(μ-az)(μ-SBut)(η4-cod) 2] (cod = cyclo-octa-1,5-diene), followed by addition of phosphorus donor ligands (L) affords the complexes [Rh2(μ-az)(μ-SBut)(CO)2L2]. The crystal and molecular structure of cis-[Rh2(μ-pz)(μ-SBut)(CO)2{P(OMe) 3}2] (pz = pyrazolate) was determined from a single crystal by X-ray diffraction. Crystals are monoclinic, space group P21, with a = 10.789(2), b = 12.226 0(3), c = 10.431 4(2) Å, β = 110.515(1)°, and Z = 2. The final agreement factors were R = 0.036 and R′ = 0.044. In the dinuclear complex each rhodium atom is in a distorted square arrangement. The dihedral angle of 63.1(2)° between the two co-ordination planes leads to a bent geometry with a rhodium-rhodium distance of 3.477 0(9) Å. The [Rh2(μ-az)(μ-SBut)(CO)2L2] complexes are good precursors for the hydroformylation reaction of olefins under mild conditions.