Editing Nitronium ion (section)

== Structure ==
The nitronium ion is [[isoelectronicity|isoelectronic]] with [[carbon dioxide]] and has the same linear structure and bond angle of 180°. For this reason it has a similar vibrational spectrum to carbon dioxide. Historically, the nitronium ion was detected by [[Raman spectroscopy]], because its symmetric stretch is Raman-active but infrared-inactive. The Raman-active symmetrical stretch was first used to identify the ion in nitrating mixtures.<ref>{{cite journal |last1=Ingold |first1=C. K. |last2=Millen |first2=D. J. |last3=Poole |first3=H. G. |title=Spectroscopic Identification of the Nitronium Ion |journal=Nature |date=1946 |volume=158 |issue=4014 |pages=480–481|doi=10.1038/158480c0 |bibcode=1946Natur.158..480I |s2cid=4106964 }}</ref>