Abstract: The reaction of F atom with C₂H₅I has been studied using the cross beamlascr-inducedfluorescence technique within the 525-675urn wavelength region. The relative nascentvibrational state distribution and rotational temperatures in vibrational levels for product TFhave been obtioned.The state populations are close to the stahstical theory indicahng the reachon proceed through a long——lived complex. The internal energy disposal of product iF and total reaction cross section have been determined for the reaction F+C₂H₅I.