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Organometal‐Stabilized 1,4‐Dihydropyrazines: Extremely Electron‐Rich Heterocycles
Author(s) -
Kaim Wolfgang
Publication year - 1981
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198106001
Subject(s) - ionization , ionization energy , electron , chemistry , atomic physics , materials science , computational chemistry , ion , physics , nuclear physics , organic chemistry
The long predicted electronic structure of the 1,4‐dihydropyrazines has been confirmed PE‐spectroscopically, inter alia , on the model compounds (1) and (2) , R = CH 3 . These measurements gave extremely low ionization potentials for the heterocycles; (2) holds the record, with IE 1 v= 5.87 eV (for comparison: Na = 5.1 eV).