Laser Ablation-Molecular Beam Method: A Versatile Diagnosis for the Reactions of Metal Ions with Molecules in the Gas Phase. Dimanganese Decacarbonyl

Abstract

Intense laser light was focussed on the surface of a metal substrate (Nb or Cu) in vacuum, and a molecular beam of Mn2(CO)10 was injected nearby. Product ions resulting from the reaction of substrate metal ions or electrons with Mn2(CO)10 were analyzed by mass-spectroscopy. This method provides a simple and versatile diagnosis for the reactions of metal ions and/or electrons with molecules in the gas phase.

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.…”

Gas-Phase Organolanthanide (Ln) Chemistry: Formation of Ln+−{Benzene} and Ln+−{Benzyne} Complexes by Reactions of Laser-Ablated Ln+ with Cyclic Hydrocarbons

“…5,7 Two primary experimental approaches for studying metal ion-molecule reactions are Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS) 1,5,7,12 and guided ion beam mass spectrometry. 3,4 In addition, Sato et al have described the laser ablation-molecular beam (LAMB) technique 25,26 and applied it to a variety of M + + R reactions 27 including some with R ) benzene. 16,21 The LAMB technique entails injecting neutral reactants into the path of nascent laserablated M + and characterizing the collision product ions with a mass spectrometer.…”

“…Two primary experimental approaches for studying metal ion−molecule reactions are Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS) 1,5,7,12 and guided ion beam mass spectrometry. , In addition, Sato et al have described the laser ablation−molecular beam (LAMB) technique , and applied it to a variety of M + + R reactions including some with R = benzene. , The LAMB technique entails injecting neutral reactants into the path of nascent laser−ablated M + and characterizing the collision product ions with a mass spectrometer. A potential complication is that laser ablated metal ions can be produced with a broad distribution of translational and internal energies; the kinetic energy (e.g., ∼1−10 eV) is generally substantially greater than the internal energy (e.g., 0.1−1 eV) .…”

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

“…However, values of the M + -Cr bond energy necessary in such a consideration are not available. In principle these values can be calculated using a cycle (Scheme 1) and Eqn [3]. [18][19][20] Howver, these data are still very limited, and those on Crcontaining heterodimer are absent, except for only one case of CuCr.…”

“…In principle these values can be calculated using a cycle (Scheme 1) and Eqn [3]. 3 we plot the average values the number of CO groups released (6 Ϫn) against the D(M + Ϫ Cr) values obtained from Eqn [3]. 23 D values are in kJ mol Ϫ 1 .…”