Raman-Spektren eines AsJ3-Einkristalls und von SbJ3-und BiJ3-Kristallpulvern / Raman spectra of an AsJ3-single crystal and of SbJ3- and BiJ3--crystal powders

Abstract

Raman spectra of an AsJ3-single crystal were recorded using a quasicontinuous ruby laser, a double monochromator and a special registration electronics. The polarization measurements allow the assignments of the internal, translational and rotational modes of AsJ3 (factor group S6). Since SbJ3 and BiJ3 have the same space group and the same number of molecules per unit cell, one can assign the wavenumbers of the crystal powder Raman spectra in analogy to AsJ3. The depolarization ratios of the Raman lines of AsJ3 in solutions were also determined