β Scribed by Paul Sharpe; Carolyn J. Cassady
No coin nor oath required. For personal study only.
Silver cluster ions, A& (x= l-1 6), have been produced by fast atom bombardment of silver foil and silver salts in the external ion source of a Fourier-transform ion cyclotron resonance mass spectrometer. Ion formation and collision-induced dissociation are discussed in relation to ion stabilities. Reactions ofAg$ , x= l-5, were studied with a variety of small molecules. Reactivity is dominated by adduct formation and silver atom displacement, which is dependent on cluster size. Contrasting reactivity was observed between Ag' and A& with 2-propanol, 2-methyl-2-propanol and 2-methylpropane.
π SIMILAR VOLUMES
## Abstract Cluster ions from the continuousβflow fast atom bombardment of several pure, liquid aromatics were examined. Most of the aromatics cluster as (M)~__n__~^+^; however, aromatic bases such as pyridine and aniline also form (M)~__n__~H^+^ ions. The abundance of both (M)~__n__~^+^ and (M)~__
## Abstract The fast atom bombardment mass spectrometry of some crown ethers shows the formation of both [M + H]^+^ and [M β H]^+^ ions, paralleling behaviour already observed using electron impact ionization. The study of these oily samples with and without a glycerol matrix, trifluoroacetic acid
Ion-molecule reactions occurring in Cr(CO)\*, Fe(CO),, and Mns(C0) !,, systems are carried out in a Fourier transform ion cyclotron resonance (FTICR) spectrometer. Abundant intensities of bare metal cluster ions can be formed by employing a multiple pulse sequence including selective ejections and p