Gas-phase Metal Clusters Research Articles

Semi-metal clusters: laser vaporization and photoionization of antimony and bismuth

Gas-phase metal clusters of antimony, bismuth, or antimony-bismuth alloys are prepared by laser vaporization and probed with UV laser photoionization in a time-of-flight mass spectrometer. Unusual size distributions are observed, ending at five-atom clusters. Fragmentation processes are extremely efficient at 193 nm for tetramer species regardless of elemental composition. There are striking similarities in cluster stability and fragmentation patterns in these systems.

Multiphoton dissociation of transition-metal carbonyl complexes: a novel route to gas-phase metal clusters

Ionisation/dissociation multiphotonique UV/visible de divers complexes: Fe 3 (CO) 12 , Ru 3 (CO) 12 , Os 3 (CO) 12 , Fe 2 Ru(CO) 12 , Fe 2 (CO) 6 S 2 et [(π-C 5 H 5 ) Cr(CO) 3 ] 2 . Formation d'ions moleculaires contenant un metal insature et d'ions metalliques atomiques. La photodissociation de complexes carbonyles metalliques stables fournit des echantillons en phase gazeuse de dimeres et trimeres homo- et heteronucleaires metalliques, de sulfures metalliques et d'atomes metalliques monocoordines