S. Chattopadhyay et al., RAMAN EXCITATION PROFILES AND MOLECULAR-STRUCTURES IN THE EXCITED ELECTRONIC STATES OF 2,2'-DIPYRIDYLAMINE, Journal of Raman spectroscopy, 28(8), 1997, pp. 559-565
Raman excitation profiles (REPs) of several totally symmetric vibratio
ns of 2,2'-dipyridylamine (DPA) were measured and analysed, Possible m
olecular structures and other interesting properties of the molecule i
n the excited electronic states are discussed, Normal-mode characteris
tics are also described, Of the three excited states found from the el
ectronic absorption spectra, it is shown that the molecular geometry i
s not significantly changed in the lowest excited singlet state (assig
ned as the L-1(a) state). (C) 1997 John Wiley & Sons, Ltd.