… This book introduces vibronic coupling density and vibronic coupling constant analyses
as a way to understand molecular structure and chemical reactions. After quantum study, the …

… Therefore, we can understand the structural change by analyzing the vibronic coupling density
(… As an example, the vibronic coupling density analysis for a hydrogen molecule anion is …

… understanding of vibronic coupling phenomena, achieved by … , by means of the density
matrix obeying the quantum Liou… The Jahn-Teller distortion of a square molecule as a result of …

… initially populated and final vibrational density of states. This … into the vibrational degrees
of freedom (vibronic coupling). … to the PJT distortion and were able to obtain a low-frequency …

… bond), and deformation in the … deformations convert the geometry from aromatic to quinoid.
Since we chose the direction of the vibrational mode such that the VCC is negative, distortion …

… This review outlines advances made in understanding the … , creating a vibrational “cloud”
or vibrational distortion field (… eq 42 derived from the photon density of states. Only under such …

… a survey of the current understanding on the role of quantum … density matrix, as we will
briefly discuss in the next section. … , ie, charges coupled to a lattice distortion, instead of free …

… were triggered to understand the role of vibrational degrees of … spectral densities and the
role of exciton–vibrational coupling … called the zone of molecular distortion, which surrounds the …

… Consequently, to construct a mechanistic understanding of the … Deviations from this
relationship arise from a higher density of … modes exhibiting a distortion of the D–A dihedral angle. …

… strain plays an important role, whose consideration contributes to a better understanding of
… generating a totally symmetric d xy -ground state, with an admixture of 4s-electron density. …