Sergei Tretiak

TL;DR: The capability of the exciton scattering approach is extended to include symmetric triple and quadruple joints that connect linear segments on the basis of the phenylacetylene backbone, and topological charges are introduced, associated with the scattering matrices, which help to formulate useful relations between the number of excitations in the excitation band and thenumber of repeat units.

TL;DR: In this article, the effect of substituent groups on one-photon (OPA) absorption properties of extended amine-terminated phenylenevinylene oligomers was analyzed.

TL;DR: It is shown that density functional theory (DFT) calculation is a useful tool to provide insights into the bonding, electron population distribution and optical transitions of adducts between conjugated molecules and Lewis acids (CM-LA).

TL;DR: In this article, the absorption spectra of free-base and magnesium porphins were analyzed using collective electronic normal modes representing the changes in charge distributions and bond-order patterns induced by the optical field.

TL;DR: In this article, the formation and decay mechanisms of photoinduced nonlinear vibronic excitations (breathers) in several conjugated polymers are studied using a quantum-chemical excited state molecular dynamics approach.