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Persistent Organic High‐Spin Trinitrenes
Author(s) -
MendezVega Enrique,
MieresPerez Joel,
Chapyshev Sergei V.,
Sander Wolfram
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201904556
Subject(s) - unpaired electron , matrix isolation , photodissociation , chemistry , hydrogen , spectroscopy , inert gas , photochemistry , inert , oxygen , ground state , matrix (chemical analysis) , electron paramagnetic resonance , infrared spectroscopy , molecule , atomic physics , organic chemistry , nuclear magnetic resonance , physics , quantum mechanics , chromatography
The septet ground state trinitrenes 1,3,5‐trichloro‐2,4,6‐trinitrenobenzene and 1,3,5‐tribromo‐2,4,6‐trinitrenobenzene were isolated in inert (Ar, Ne, and Xe) as well as reactive matrices (H 2 , O 2 , and H 2 O) at cryogenic temperatures. These trinitrenes were obtained in high yields by UV photolysis of the corresponding triazides and characterized by IR and UV/Vis spectroscopy. The trinitrenes, despite bearing six unpaired electrons, are remarkably unreactive towards molecular oxygen and hydrogen and are persistent in water ice up to 160 K where the water matrix starts to sublime off.