New Procedure for the Synthesis of (Fulvalene)ditungsten Carbonyl Halides and Cyclopentadienyltungsten Carbonyl Halide Complexes with P-Donor Nucleophiles

Autor: Consuelo Moreno, Rosa-María Medina, M.J. Macazaga, David H. Farrar, Salomé Delgado
Rok vydání: 1998
Předmět:
Zdroj: Scopus-Elsevier
ISSN: 1520-6041
0276-7333
DOI: 10.1021/om980180+
Popis: The reactions of (η5:η5-C10H8)W2(CO)6I2 and (η5-C5H5)W(CO)3I with P-donor nucleophiles (L = P(OMe)3, PPhMe2, P(n-Bu)3, PPh2Me, P(p-tol)3, P(m-tol)3, and PCy3) in the presence of 2 and 1 equiv, respectively, of Me3NO yield (η5:η5-C10H8)W2(CO)4L2I2 and (η5-C5H5)W(CO)2LI, respectively, as a mixture of cis/trans isomers. The relative proportion of these isomers is dependent of the stereoelectronic properties of the phosphine ligands. The X-ray structure of (η5:η5-(C10H8)W2(CO)6I2 has been determined.
Databáze: OpenAIRE