Question

The compound Na2IrCl6 reacts with triphenylphosphine in diethylene glycol under an atmosphere of CO to give
trans‐[IrCl(CO)(PPh3)2], known as Vaska’s compound. Excess CO produces a five‐coordinate species and
treatment with NaBH4 in ethanol gives [IrH(CO)2(PPh3)2]. Draw and name the three complexes.

Answer 1

pic 1

carbonyl chloro-bis(triphenylphosphine)iridium(II)

pic 2

dicarbonyl-bis(triphenyl phosphine) iridium (II)

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