-Ferrocene dicarboxylic acid pyridin-4-yl ester: A new bidentate ligand in arene ruthenium chemistry
نویسندگان
چکیده
1,1 0-Ferrocene dicarboxylic acid pyridin-4-yl ester (1) is prepared from 1,1 0-ferrocene dicarbonyl chloride and 4-hydroxypyridine. This new bidentate ferrocenoyl ligand reacts with the monocationic complex [(g-p-cymene)2Ru2(l-OH)3] + to give the dicationic complex [(g-p-cymene)2Ru2(l-OH)2(1,1 0(NC5H4–OOC)2–Fc)] 2+ (2) (Fc: C5H4–Fe–C5H4), isolated as a tetrafluoroborate salt. The single-crystal X-ray structure analysis of [2][BF4]2 reveals the ferrocenoyl pyridine ligand 1 to act as l2-g 2 chelating ligand in the dinuclear complex, having replaced a l2-g -hydroxo ligand.
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