Production of OH by dissociating ozone–water complexes at 266 and 355 nm and by reacting O(1D) with water dimers

In the present study the production of OH was monitored when ozone water complexes were dissociated at 266 and 355 nm and when O(1D) atoms were reacted with water dimers. The results indicate that the absorption of ozone at 355 nm is enhanced by two orders of magnitude when the ozone is complexed with water. In addition it is shown that the rotational energy distribution of the OH product is very similar when it is produced in an intracluster process, or by reaction of O(1D) with water dimers. The results are rationalized by complex induced potential energy surfaces shift. The shifts may strongly depend on the relative conformation of the water and the ozone in the complex.