๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Unimolecular and collision-induced reactions of doubly charged porphyrins

โœ Scribed by Gary J. Van Berkel; Scott A. McLuckey; Gary L. Glish


Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
824 KB
Volume
3
Category
Article
ISSN
1044-0305

No coin nor oath required. For personal study only.


๐Ÿ“œ SIMILAR VOLUMES


Collision induced dissociation of doubly
โœ L. Schweikhard; G. Dietrich; S. Krรผckeberg; K. Lรผtzenkirchen; C. Walther; J. Zie ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 89 KB ๐Ÿ‘ 2 views

Singly charged noble metal cluster ions from an external laser vaporization source are accumulated in a Penning trap. They are subjected to electron bombardment for further ionization. The doubly charged clusters are size selected and their low energy fragmentation pathways are studied by multiple-c

Unimolecular and collision-induced disso
โœ Roger Guevremont; Ved P. Pathak; Jeffrey L. C. Wright ๐Ÿ“‚ Article ๐Ÿ“… 1990 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 864 KB

## Abstract The mechanism of the collisionโ€induced fragmentation of peracetylated methylโ€ฮฑโ€Dโ€glucopyranoside was investigated using deuteriumโ€labelled acetates and sequential mass spectrometry. Loss of the substituent at C(1), the anomeric carbon, yields an ion of __m/z__ 331, [C~14~H~19~O~9~]^+^.

Unimolecular and collision-induced fragm
โœ Richard A. Crombie; Alex G. Harrison ๐Ÿ“‚ Article ๐Ÿ“… 1988 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 640 KB

The unimolecular fragmentation reactions of 28 protonated nitroarenes, occurring on the metastable ion time-scale, are reported. In addition, the collision-induced fragmentation of the same species have been studied at 10 eV and at 50 eV collision energy. When an OH, COOH or NH, substituent is ortho

Formation and collision-induced dissocia
โœ A. Mandelbaum; A. Etinger ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 200 KB

Doubly charged molecular anions M2-of fullerenes are formed in the gas phase under chemical ionization conditions with isobutane as the reagent gas. The efficiency of double electron attachment increases with increasing size of the fullerenes: the C& ion is the most abundant doubly charged anion in

Influence of collision gas on doubly cha
โœ J. R. Regalado; W. M. Holbrook; D. B. Bostwick; T. F. Moran ๐Ÿ“‚ Article ๐Ÿ“… 1990 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 573 KB

The influence of the collision gas on doubly charged ion mass spectra of a selected number of hydrocarbons has been examined. Relative abundances of various product ions in 2E spectra, resulting from charge exchange collisions of doubly charged hydrocarbon ions, do not vary drastically as the collis