COMPOSES COMPLEXES DE METAUX DU VIIIEME GROUPE DE LA CLASSIFICATION PERIODIQUE, EN PARTICULIER D'IRIDIUM DE RHODIUM ET DE RUTHENIUM, ET LEUR PROCEDE DE FABRICATION

摘要

1343470 Phosphorus arsenic and antimony complexes containing metals SNAM PROGETTI SpA 8 Oct 1971 [13 Oct 1970] 47065/71 Heading C1A [Also in Division C2] Complexes of formula I where M is a Group VIII metal, L is phosphine, stibine or arsine, or an optionally halogenated alkyl, aryl, alkaryl or aralkyl derivative thereof and n is 2, 3 or 4, may be prepared by (a) dehydrogenating a hydride of a complex of the Group VIII metal and the complexing agent L by reaction with a hydrogen acceptor, (b) reacting a hydride of the Group VIII metal, which is optionally complexed with a complexing agent other than L, with a complexing agent L and a hydrogen acceptor. In process (a) the starting complex may be prepared by reacting L with (i) a hydride of the Group VIII metal, (ii) a complex of a hydride of the Group VIII metal with a complexing agent other than L or (iii) a complex of an inorganic salt of M, which is optionally a partial hydride, and a hydride. In process (b) the Group VIII metal starting material may be prepared by reacting a hydride with an inorganic salt of the metal or with a complex of such a salt with a complexing agent other than L. The hydrogen acceptor may be an olefin of formula III where R1, R2, R3 and R4 are hydrogen, alkyl or aryl.