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Production of N 3 upon Photolysis of Solid Nitrogen at 3 K with Synchrotron Radiation
Author(s) -
Chou ShengLung,
Lo JenIu,
Lin MengYeh,
Peng YuChain,
Lu HsiaoChi,
Cheng BingMing
Publication year - 2014
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201306876
Subject(s) - solid nitrogen , photodissociation , photoexcitation , synchrotron radiation , nitrogen , infrared , synchrotron , absorption (acoustics) , infrared spectroscopy , irradiation , chemistry , vacuum ultraviolet , analytical chemistry (journal) , photochemistry , ultraviolet , materials science , atomic physics , physics , optics , excited state , optoelectronics , nuclear physics , environmental chemistry , organic chemistry , composite material
The photodissociation of gaseous molecular nitrogen has been investigated intensively, but the corresponding knowledge in a solid phase is lacking. Irradiation of pure solid nitrogen at 3 K with vacuum‐ultraviolet light from a synchrotron produced infrared absorption lines of product l ‐N 3 at 1657.8 and 1652.6 cm −1 . The threshold wavelength to generate l ‐N 3 was determined to be (143.7±1.8) nm, corresponding to an energy of (8.63±0.11) eV. Quantum‐chemical calculations support the formation of l ‐N 3 from the reaction N 2 +N 2 , possibly through an activated complex l ‐N 4 upon photoexcitation with energy above 8.63 eV. The results provide a possible application to an understanding of the nitrogen cycle in astronomical environments.