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Field‐Desorption Mass Spectra of Fern Phloroglucinols Containing Three to Six Ring Constituents
Author(s) -
Richter Wilhelm J.,
Raschdorf F.,
v. Euw Josef,
Reichstein Tadeus,
Widén CarlJohan
Publication year - 1987
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19870700402
Subject(s) - chemistry , field desorption , fragmentation (computing) , electron ionization , mass spectrum , mass spectrometry , desorption , ionization , analytical chemistry (journal) , thermal desorption , spectral line , ring (chemistry) , computational chemistry , adsorption , organic chemistry , chromatography , ion , physics , astronomy , computer science , operating system
It has been previously shown that the structural analysis of the title compounds by electron‐impact ionization (EI)mass spectrometry is complicated by extensive, if not complete, thermal rottlerone‐type rearrangement and/or fragmentation reactions. The use of a ‘softer’ ionization technique such as field desorption (FD) is, therefore, required in order that these compounds may be characterized in terms of their molecular size and composition. In this report, the FD mass spectra of typical representatives of this class of compounds are described along with the attempted suppression of undesirable thermal reactions by the optimization of the emitter temperatures.