Basicity of phenazine in the first triplet state

@inproceedings{Barrio1989BasicityOP,
  title={Basicity of phenazine in the first triplet state},
  author={J. I. del Barrio and J. R. Rebato and F. Javier Gonz{\'a}lez Tablas},
  year={1989}
}
The pK a of the nonovalent phenazonium cation in the first triplet state has been estimated from transient triplet-triplet absorption spectra obtained by flash photolysis. The value obtained, pK a =1.9, differs considerably from the previously reported pK a =4