𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Structural characterization of isomeric triazolocoumarins by high- and low-energy collision spectrometry of M+˙, [M + H]+ and [M − H]− species

✍ Scribed by C. Evans; P. Traldi; A. Chilin; G. Pastorini; P. Rodighiero

Book ID
102965880
Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
576 KB
Volume
26
Category
Article
ISSN
1076-5174

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Two monometayl‐ and four dimethyl‐triazolocoumarin isomers were characterized by their electron impact mass spectra and by low‐energy collision experiments performed on molecular ions M^+^˙ and other fragment ions with an ion‐trap mass spectrometer. High‐energy collision‐activated dissociation measurements were performed on the protonated [M + H]^+^ and deprotonated [M − H]^−^ molecular ion obtained by fast atom bombardment and M^+^˙ species produced by electron impact ionization on a double‐focusing, reverse‐geometry instrument. The data obtained allowed unequivocal structural identification of all the compounds investigated.

📜 SIMILAR VOLUMES

Collision-induced dissociation of the M+
Collision-induced dissociation of the M+˙ and [M + H]+ ions of ploycyclic aromatic hydrocarbons produced by keV-ion bombardment
✍ Chhabil Dass 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 319 KB

## OMS Letters Dear Sir, ## Collision-induced Dissociation of the M+' and [ M + H] + Ions of Polycyclic Aromatic Hydrocarbons Produced by keV-Ion Bombardment Polycyclic aromatic hydrocarbons (PAHs) constitute a hazardous class of compounds because of their putative carcinogenic and mutagenic pr

Characterization of five glucosinolates
Characterization of five glucosinolates by fast atom bombardment mass spectrometry and collision activation of [M − H]−1
✍ Gustav Bojesen; Elfinn Larsen 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 227 KB 👁 2 views

Five glucosinolates have been examined by collision activation of IM -H Jproduced by fast atom bombardment. The resultant daughter ion spectra contained a number of peaks that could be rationalized in terms of the known structure of the glucosinolates and in particular the nature of non-polar side-

Fungal metabolites. XXI.1 Characteristic
Fungal metabolites. XXI.1 Characteristics of low energy collision induced dissociation of [M + 2H]2+, [M + H + Na]2+ and [M + 2Na]2+ of peptaibols using electrospray ionization mass spectrometry
✍ Kanai, Michiko; Iida, Akira; Nagaoka, Yasuo; Wada, Shunichi; Fujita, Tetsuro 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 426 KB 👁 2 views

The mass spectral characteristics of selected peptaibols were investigated using electrospray ionization in conjunction with low-energy collision-induced dissociation (CID). Protonated and sodiated molecular species were selected as precursor ions and the resulting CID spectra are discussed with res