Electron ionization (EI) mass spectra of bi- and poly-ring carbo- and heterocycles including saturated and unsaturated spiranes, condensed ring and bridged ring systems are examined. Three, four, five, six-membered and larger rings are considered. The rings may include oxygen, sulfur, nitrogen, selenium or phosphorus atom or multiple hetero atoms. Characteristic fragmentation modes and diagnostically important ions generated by these compounds under EI are established. Detailed analysis of mass spectra of halides, alcohols and mercaptans, ethers and thioethers, aldehydes, ketones and thiones, carboxylic and thiocarboxylic acids, amines, amides and thioamides, nitro compounds, nitrites and nitrates of mono- and poly-ring carbo- and heterocyclic systems is performed. Basic fragmentation rules typical for a specific ring and general dissociation modes governed by a particular functional group are determined. The potential and its limitations of EI mass spectrometry in structure determination of unknowns are emphasized.
Skip Nav Destination
Article navigation
March 2024
Review Article|
February 27 2024
Protocol for Structure Determination of Unknowns by EI Mass Spectrometry. III. Diagnostic Ions in Multiple Ring Carbo- and Heterocycles, and Mono-Functional Derivatives
Anzor Mikaia
Anzor Mikaia
a)
National Institute of Standards and Technology
, 100 Bureau Drive, Gaithersburg, Maryland 20878, USA
a)Author to whom correspondence should be addressed: anzor.mikaia@nist.gov
Search for other works by this author on:
a)Author to whom correspondence should be addressed: anzor.mikaia@nist.gov
J. Phys. Chem. Ref. Data 53, 011501 (2024)
Article history
Received:
November 20 2023
Accepted:
January 04 2024
Citation
Anzor Mikaia; Protocol for Structure Determination of Unknowns by EI Mass Spectrometry. III. Diagnostic Ions in Multiple Ring Carbo- and Heterocycles, and Mono-Functional Derivatives. J. Phys. Chem. Ref. Data 1 March 2024; 53 (1): 011501. https://doi.org/10.1063/5.0188260
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Pay-Per-View Access
$40.00
342
Views
Citing articles via
Ab Initio Calculation of Fluid Properties for Precision Metrology
Giovanni Garberoglio, Christof Gaiser, et al.
Survey of Hyperfine Structure Measurements in Alkali Atoms
Maria Allegrini, Ennio Arimondo, et al.
Related Content
Co-production of syngas and zinc via combined solar-driven biomass gasification and ZnO carbo-thermal reduction in a continuously-operated solar reactor
AIP Conf. Proc. (November 2018)
Chemical vapor deposition boron carbo–nitride deposited using dimethylamine borane with ammonia and ethylene
J. Vac. Sci. Technol. A (September 2004)
Formation of the C4Hn+ (n = 2–5) ions upon ionization of acetylene clusters in helium droplets
J. Chem. Phys. (June 2023)
Cross linking of thiolated carbon nanotubes: An ab initio study
J. Appl. Phys. (July 2007)