Abstract: The present invention relates to a raw material for CVD comprising an organic iridium compound as a main component, said organic iridium compound being tris(2,4-octanedionato)iridium represented by Formula 1. Particularly preferably, the raw material for CVD consists only of the trans isomer of tris(2,4-octanedionato)iridium.

Abstract: The disclosed is a method of producing two organic ruthenium compounds; i.e., bis(ethylcyclopentadienyl)ruthenium and (alkylcyclopentadienyl)cyclopentadienylruthenium, which are useful for producing thin film through CVD. In one aspect, the invention provides a method for producing bis(ethylcyclopentadienyl)ruthenium, including hydrogenating bis(acetylcyclopentadienyl)ruthenium in the presence of a catalyst. In another aspect, the invention provides a method of producing (alkylcyclopentadienyl)cyclopentadienylruthenium, including acylating bis(cyclopentadienyl)ruthenium with carboxylic anhydride in the presence of phosphoric acid as a catalyst, to thereby produce (acylcyclopentadienyl)cyclopentadienylruthenium, and reducing the (acylcyclopentadienyl)cyclopentadienyl ruthenium.

Abstract: The present invention is a preparation method of the bis(alkylcyclopentadienyl)ruthenium by reacting a ruthenium compound, an alkylcyclopentadiene and a reducing agent, wherein the ruthenium compound, the alkylcyclopentadiene, and the reducing agent are reacted in the presence of a base. It is preferable that at least one of ammonia, amines, ammonium compounds, hydroxides, aniline, nitroaniline, aminophenol, aminodiphenyl, piperidine, Grignard reagents, alkali metals, alkoxides, phenyl lithium, methyl lithium, n-butyryl lithium, lithium aluminium hydride, and sodium amide is added as a base to the reaction system and the ruthenium compound, the alkylcyclopentadiene, and the reducing agent are reacted.