Dissociation dynamics of fluorinated alkyl iodides at 222 and 236 nm

I*(2P1/2) quantum yield has been measured for a series of fluorinated alkyl iodides at two different wavelengths in the blue wing of their A-band. The yields are much higher for the fluorinated iodides than their corresponding alkyl iodide analogs at 222 as well as 236 nm. The I* quantum yield at 222 nm is, in general, larger than that at 236 nm which is opposite to what has been found in normal alkyl iodide dissociation in the A-band. This difference in fluorinated iodides has been explained by invoking the participation of the B-band states in the dissociation dynamics.