Effect of Identical Sets of Structural Elements of π-Conjugated Molecules on the Parameters of Intra- and Intermolecular Interaction
Abstract A comparative analysis is performed of the parameters of the Franck–Condon and Herzberg–Teller interactions that determine the shape of the fine-structure absorption and luminescence spectra of π‑conjugated molecules having the same sets of structural elements (molecular fragments). The possibility of applying a fragmentary approach to analyzing the spectra of these molecules is demonstrated.