Author/Authors :
Brillante، نويسنده , , A. and Della Valle، نويسنده , , R.G. and Farina، نويسنده , , L. and Girlando، نويسنده , , A. and Masino، نويسنده , , M. and Venuti، نويسنده , , E.، نويسنده ,
Abstract :
We report for the first time lattice phonon Raman spectra of pentacene measured by means of a Raman microprobe technique. We experimentally prove the existence of two polymorphs, as expected from recent structural studies. A comparison with Quasi Harmonic Lattice Dynamics calculations, previously performed starting from the available X-ray data, help us in identifying the phase to which each crystal belongs.
