Iron, Ruthenium, and Osmium Carbonyl Complexes

SbMe ] exhibit axial-equatorial isomerism in solution. The tendency to give the less-common equatorial isomer follows the orders Ru Os Fe, Sb As P, Ph Me and P(OCH..) CMe PMe, 

Elimination of HI from these products gives the n -thiophosphinito- 

S -bridging the iron-iron bond of a Fe (CO), moiety and P-bonded 

Among the nitrogen donor ligand complexes that have been 

Ph2pCH2CH(Me)PPh2 to give [CpRu(chelate)H] products. 

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Iron, Ruthenium, and Osmium Carbonyl Complexes.— The rates of carbonyl substitution in [Fe(CO)2L2l radicals (L = phosphine) by a variety of pyridines have been studied electrochemically. 

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