Reorientation of impurity molecules in host crystals upon excitation of a local phonon; the system naphthalene in durene

We have studied the properties of naphthalene molecules in a durene host lattice by means of a computer calculation of the intermolecular interactions. The results support earlier experimental findings that the naphthalene molecule in its photo-excited triplet state reorients upon absorption of a quantum of a (pseudo)-localized phonon. © 1980, All rights reserved.