Translational and Librational Lattice Frequencies in 6-N,N-Diacetylaminochrysene and 2,4-Dinitrobenzoic Acid Crystals

Sa？etak The root-mean-square libration amplitude derived from non-rigid-body thermal motion analysis of 6-N,N-diacetylaminochryseneand 2,4-dinitrobenzoic acid predicts torsional frequencies in satisfactory agreement with the Raman spectra. Translational and librational lattice frequencies of the whole molecules derived from the L and T components are generally consistent with the spectroscopic results