Reply to comment on "direct deconvolution of extensively perturbed spectra: The singlet-triplet molecular Eigenstate spectrum of pyrazine"

Sir: The Comment by Lehmann concerning our method for the deconvolution of perturbed spectra via a Green’s function inversion procedure suggests using a slightly different numerical procedure that leads to a useful formula for error estimation and hence the uncertainties in the model parameters. While we are supportive of this optional alternative method proposed by Lehmann, we are conscious that users of the Lawrence-Knight deconvolution procedure, with or without the Lehmann extension, be cognizant of its inherent limitations. We thus take the opportunity here to clarify the knowledge that one might hope to obtain by application of the procedure.