Synthesis of New Ruthenium(II) Carbonyl Hydrido, Alkenyl, and Alkynyl Complexes with Chelating Diphosphines

We gratefully acknowledge sup- port by the Direccion General de Investigacion Cientifica y Tecnica (DGICYT) (Project PB91-0612-C03-02). We also acknowledge Drs. R. Jimhnez and A. Gutihrrez (Departamento de Quimica Inorglnica, Universidad Complutense de Madrid) for performing some of the 31P NMR spectra.