INFRARED SPECTROSCOPIC STIDIES AND LASER INDIUCED FLUORESCENCE AND PHOSPHORESCENCE SPETROSCOPY OF CARBON CLUSTERS IN SOLID ARGON.

Author Institution: Max-Planck-Institut f\""ur Kernphysik, Postfach 103980Small carbon clusters produced by evaporation graphite were embedded in an argon matrix and investigated by Fourier transform spectrometers (Bruker IFS 113v and IFS 88) in the uv-visible and infrared spectral ranges. Time-resolved laser induced fluorescence and phosphorescence spetra of such matrices were measured with a gated photodiode array spectrometer. For identification of the produced molecules, the infrared absorption spetroscopy has been used. The observed phosphorescence and flaorescence emissions induced by a pulsed dye laser system are discussed and compared with the uv-visible absorption of carbon clusters. The lifetimes of several excited states were obtained, and from the emission spetra, the corresponding vibration frequencies of the clusters in the ground state were estimated