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Journal ArticleDOI

Identification of C2H5O+ structural isomers by ion cyclotron resonance spectroscopy

01 Mar 1970-Journal of the American Chemical Society (American Chemical Society)-Vol. 92, Iss: 6, pp 1477-1485
About: This article is published in Journal of the American Chemical Society.The article was published on 1970-03-01. It has received 84 citations till now. The article focuses on the topics: Ion cyclotron resonance & Spectroscopy.
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Journal ArticleDOI
TL;DR: In this article, a collision-activated dissociation (CAD) involving Fourier transform mass spectrometry (FTMS) is described, which can also be effected by application of a sustained (⩾ 500 ms) off-resonance (SORI) electric field pulse.

625 citations

Book
01 Apr 1983
TL;DR: The precise nature of these reactive C1 species is unknown at present and is the subject of lively debate as mentioned in this paper, and considerable diversity of current opinion will become apparent from the following account.
Abstract: The conversion of methanol to hydrocarbons is a remarkable reaction. The mechanism involves C-C bond formation from C1 fragments generated in the presence of certain acidic catalysts and reagents. The precise nature of these reactive C1 species is unknown at present and is the subject of lively debate. The considerable diversity of current opinion will become apparent from the following account.

361 citations

Journal ArticleDOI
TL;DR: In this paper, it was shown that for complicated ion-molecule reaction systems where a reactant ion forms N product ions, the FT ICR double resonance experiment is N times as efficient as the conventional ICR single resonance experiment.

167 citations

Journal ArticleDOI
TL;DR: In this paper, the values for proton affinities (gas phase basicities) published during the past ca. 25 years are given and methods for determining these values are discussed.

118 citations

Journal ArticleDOI
TL;DR: In neutralization-reionization MS, an unusual, unstable species is prepared by ion-beam neutralization and characterized by reionization and Electrospray ionization of a protein mixture produces its corresponding ionized molecules.
Abstract: The first mass spectrum of a molecule was measured by J.J. Thomson in 1910. Mass spectrometry (MS) soon became crucial to the study of isotopes and atomic weights and to the development of atomic weapons for World War II. Its notable applications to molecules began with the quantitative analysis of light hydrocarbons during World War II. When I joined the Dow Chemical Company in 1950, MS was not favored by organic chemists. This situation improved only with an increased understanding of gaseous ion chemistry, which was obtained through the use of extensive reference data. Gas chromatography–MS was developed in 1956, and tandem MS was first used a decade later. In neutralization-reionization MS, an unusual, unstable species is prepared by ion-beam neutralization and characterized by reionization. Electrospray ionization of a protein mixture produces its corresponding ionized molecules. In top-down proteomics, ions from an individual component can be mass separated and subjected to collision-activated and e...

68 citations