Mass spectra of LaCn- were taken by using a laser-vaporization source (LVS) and pulsed arc cluster ion source (PACIS) applied to La-carbon composite rods (1:130 atomic ratio). The mass spectrum using the LVS with annealing procedure has shown several magic numbers for LaCn- (n = 44, 50, 60, and 70), whereas only small LaCn- (up to n = 14) have been observed in the mass spectrum using the PACIS. Photoelectron spectra of some of these have been measured using a magnetic-bottle type time-of-flight electron spectrometer. These results indicate the exsistence of a few conformational isomers for small La-containing carbon cluster negative ions LaCn- (n = 5-8).
|Number of pages||3|
|Journal||Zeitschrift fur Physik D-Atoms Molecules and Clusters|
|Publication status||Published - Jan 1 1997|
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics