Chemical Physics Letters, Vol.446, No.4-6, 401-402, 2007
Comment on photodissociation dynamics of water at Lyman alpha (121.6 nm) bv Whikun Yi, Jaehong Park and Jungwoo Lee [Chem. Phys. Lett. 439 (2007) 46]
Based on the recently reported absolute H atom quantum yield of water on 121.6 nm photodissociation, 0 121.6 p(H)(121.6)(H2O) = 1.39 +/-0.09, we have tried to interpret previously measured H atom quantum yield of CHF2Cl, which results in an abnormal H atom quantum yield of p(H)(121.6) (CHF2Cl) = 1.05, suggesting C-H bond selective dissociation in presence of weaker C-Cl bond in CHF2Cl. In view of this unu sual result, we have tried to look for some possible sources of discrepancies. (C) 2007 Elsevier B.V. All rights reserved.