Reactions of benzene clusters with metal ions as studied by the laser ablation—molecular beam method: Observation of clustered complex ions M (C6H6)+n (n ⩾ 2) and fragment complex ions M (C6H6) (CXHY)+ with X ⩽ and Y ⩽ 4

Limited coordination number and competitive coordination in ammonia–water mixed-ligand complexes of monopositive metal ions as studied by the laser-ablation–molecular beam method: Experiment and simulation

“…We named this very simple and versatile technique the ''laser-ablation-molecular beam ͑LAMB͒'' method. 11,12 So far we have studied reactions of a variety of monopositive metal ions with amines, 13 benzene, 14 benzene clusters, 15 chromium hexacarbonyl, 16,17 dimanganese decacarbonyl, 18 ammonia clusters, 19 and methanol clusters. 20 In the latter two cases, relative abundance of clustered complex ions M ϩ ͑L͒ m ͑L is ammonia or methanol͒ is characterized by intensity gaps, where the relative abundance of complex ions decreases discontinuously.…”

Formation of mixed-metal binuclear carbonyl ions [MCr(CO)n]+ in the gas phase by the laser ablation-molecular beam method

“…7 The essential part of the apparatus is shown schematically in Fig. A molecular beam of Cr(CO) 6 was injected through another pair of holes of the ionizer cut perpendicular to the first pair. Briefly, laser light (the second harmonic of a Quanta-Ray DCR-2 Nd 3+ : YAG laser at 532 nm, ca 7 ns, 10 Hz) was focused using a quartz lens onto the surface of a metal substrate (ca 1ϫ 1 cm 2 ) located in a vacuum chamber evacuated to a base pressure of 5ϫ 10 Ϫ 6 Torr.…”

“…1. These product ions were extracted by the ion optics into the quadrupole, together with the metal ion and fragment ions of Cr(CO) 6 . The laser light was shot onto the metal substrate through a pair of holes cut in an axial-type 'ionizer' in front of an Extrel (the former Extra-Nuclear) 164-2 quadrupole (inner diameter 0.95 cm).…”

“…5,6 Ammine-type complexes of monopositive metal ions in the gas phase are given on using ammonia clusters in the beam. In the laser ablation-molecular beam (LAMB) method developed in our group, 1-14 laser ablation of a metal substrate in vacuum is utilized for the preparation of a variety of monopositive metal ions (M + ) in the gas phase.…”

“…In the reactions of M + with metal carbonyls, such as Cr(CO) 6 and Mn 2 (CO) 10 , 3, 7 a variety of mixed-metal binuclear and trinuclear carbonyls, e.g. [MCr(CO) n ] + (n = 0-6) and [Mn 2 (CO) n ] + (n = 0-10), are prepared.…”