Crown-shapped tetrametalic imidoyl complexes of palladium. X- ray structure of [Pd2 {m-C(C6 F5 )=NMe}2 (mu-Cl)(mu-CH3 CO2 )]2

  1. Uson, R. 1
  2. Fornies, J. 1
  3. Espinet, P. 1
  4. Lalinde, E. 1
  5. García, Agustín. 1
  6. Jones, P.G. 2
  7. Meyer-Base, K. 2
  8. Sheldrick, G.M. 2
  1. 1 Universidad de Zaragoza
    info

    Universidad de Zaragoza

    Zaragoza, España

    ROR https://ror.org/012a91z28

  2. 2 University of Göttingen
    info

    University of Göttingen

    Gotinga, Alemania

    ROR https://ror.org/01y9bpm73

Revista:
Journal of the Chemical Society-Dalton Transactions

ISSN: 0300-9246

Año de publicación: 1986

Volumen: 2

Páginas: 259-264

Tipo: Artículo

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DOI: 10.1039/DT9860000259 SCOPUS: 2-s2.0-37049077206 GOOGLE SCHOLAR

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

Resumen

The complexes [{[Pd2{μ-C(C6F5)=NR1} 2](μ-X1)(μ-X2)}n] (R1 = Me or p-tolyl; X1 = X2 = Cl) and their derivatives (X1 = Cl, X2 = MeCO2 or CF3CO2; X1 = X2 = MeCO2 or CF3CO2), obtained by metathetical reactions with the corresponding silver salts, are shown to be tetrametallic (n = 2) by molecularweight determinations. Their structures are discussed on the basis of 1H and 19F n.m.r. data. The crystal structure of the title complex has been solved by X-ray diffraction methods [space group P21/n, a = 14.380(4), b = 19.980(4), c = 15.976(4) Å, β = 103.51(3)°, Z = 4, R′ = 0.046 for 5 428 unique observed reflections]. The tetrametallic molecule is crown-shaped. The bond lengths at palladium reflect the strong trans influence of the imidoyl-C atom; the Pd-Cl bonds trans to C are amongst the longest known.