Cation with the structure
\(\ce{R2C=N^{+}R2}\).
Note: The terms imonium ion and immonium ion are irregularly formed and should not be used.
Source: PAC, 2013,
85, 1515. (
Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)) on page 1548 [
Terms] [
Paper]