Abstract
Hydrated ruthenium trichloride reacts with dimethyl(1-naphthyl)phosphine(L) to give mainly five-co-ordinate [RuCl2L3] and a small amount of [Ru2Cl3L6]+, isolated as the salt with BPh4–, [RuCl2L3] readily takes up carbon monoxide to give [RuCl2(CO)L3] and also other ligands (Q) to give labile products [RuCl2QL3](Q = pyridine, 2-methylpyridine, 4-methylpyridine, acetonitrile, methyl isocyanide, or tetracyanoethylene). It shows no tendency to become internally metallated, however. Osmium tetroxide in the, presence of concentrated hydrochloric acid and alcohols reacts with L to give maroon mer-[OsCl3L3] in high yield, together with a small amount of the green internally metallated [OsCl2(P–C)L2], P–C = Me2PC10H6–. [OsBr2(P–C)L2] was also prepared. [OsCl2(P–C)L2] reacts with boiling 2-methoxyethanol in the presence of sodium hydroxide to give [Os(P–C)2(CO)L] and with carbon monoxide in 2-methoxvethanol to give [OsCl2(CO)L2].
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