Picosecond Hydrogen Transfer in the Phenol-(NH3)n=1-3 Excited State

The phenol−(NH3)n=1,2,3 (S1) lifetimes have been measured near their band origins by a picosecond pump/probe scheme. The very short lifetimes observed reveal that the excited clusters undergo a reactive process, namely the following dissociative hydrogen transfer reaction: PhOH*−(NH3)n → PhO• + NH4(NH3)n-1.