Mendez-Vega Enrique, Mieres-Perez Joel, Chapyshev Sergei V, Sander Wolfram
Lehrstuhl für Organische Chemie II, Ruhr-Universität Bochum, 44780, Bochum, Germany.
Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432, Chernogolovka, Moscow Region, Russia.
Angew Chem Int Ed Engl. 2019 Sep 9;58(37):12994-12998. doi: 10.1002/anie.201904556. Epub 2019 Jul 30.
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 , O , and H 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.
七重态基态三氮烯1,3,5-三氯-2,4,6-三氮烯苯和1,3,5-三溴-2,4,6-三氮烯苯在低温下于惰性（氩、氖和氙）以及活性基质（氢气、氧气和水）中被分离出来。通过相应三叠氮化物的紫外光解以高产率获得了这些三氮烯，并通过红外光谱和紫外/可见光谱对其进行了表征。这些三氮烯尽管含有六个未成对电子，但对分子氧和氢气的反应性极低，并且在水冰中能稳定存在至160 K，此时水基质开始升华。
