The 2+1 MPI spectrum of the C-X electronic
transition in H2O, D2O and HOD, - includes
state dependent predissociation, and an example of the use of multiple
multiphoton transition moments. This work is described in C.-H. Yang,
G. Sarma, J. J. ter Meulen, D. H. Parker and C. M. Western, Phys. Chem.
Chem. Phys., (2010), DOI: 10.1039/c0cp00946f.