LASER-ABLATION MOLECULAR-BEAM METHOD - A SIMPLE AND VERSATILE DIAGNOSIS TO STUDY CHEMISTRY OF MONOPOSITIVE METAL-IONS IN THE GAS-PHASE

Chemistry of monopositive metal ions in the gas phase has been studied with the laser ablation-molecular beam (LAMB) method developed by the authors' group. in this method monopositive metal ions (M(+)'s) are p repared in the gas phase by laser ablation of metal substrates in vacu um and they are allowed to react with molecules or clusters in a molec ular beam injected nearby, The product inns are probed by a quadrupole mass spectrometry, This method has been probed to be a very simple an d versatile diagnosis for the study of coordination (solvation) chemis try and organometallic chemistry of monopositive metal ions in the gas phase, Very interesting aspects of competitive coordination (solvatio n) have been revealed using ammonia-acetone binary clusters in the mol ecular beam, and they have been studied in comparison with ammonia-wat er, ammonia-methanol and methanol-water systems previously reported.