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On-line Analysis of Nitrogen Containing Compounds in Complex Hydrocarbon Matrixes
Published on: August 5, 2016
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Spectroscopic observation of nitrogen anions N(-) in solid matrices
R E Boltnev1, I B Bykhalo, I N Krushinskaya
1Branch of Talroze Institute for Energy Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow Region 142432, Russia. boltnev@gmail.com.
Physical Chemistry Chemical Physics : PCCP
|June 1, 2016
Summary
The study suggests the gamma-line in cryocrystals is from nitrogen anions (N(-)). This finding is supported by simultaneous luminescence of metastable nitrogen atoms and exoelectron emission, with the gamma-line
Area of Science:
- Solid-state physics
- Low-temperature physics
- Atomic and molecular physics
Background:
- Thermoluminescence (TL) in cryocrystals and nanoclusters of N2, Ne, Ar, and Kr containing stabilized nitrogen atoms has been studied.
- The origin of the so-called gamma-line in these materials has remained unclear.
Purpose of the Study:
- To investigate the origin of the gamma-line observed in thermoluminescence experiments.
- To explore the relationship between the gamma-line, metastable nitrogen atoms, and exoelectron emission.
Main Methods:
- Analysis of experimental data on thermoluminescence of cryocrystals and nanoclusters.
- Observation and investigation of the gamma-line and its fine structure.
- Correlation of luminescence of metastable nitrogen atoms and exoelectron emission with gamma-line observations.
Main Results:
- The gamma-line is proposed to originate from a bound-bound transition (1)D-(3)P of nitrogen anions (N(-)).
- Nitrogen anions (N(-)) are suggested to form from the association of delocalized electrons and metastable nitrogen atoms (N((2)D)) in solids.
- Recent observations of the gamma-line were concurrent with luminescence from metastable nitrogen atoms and exoelectron emission.
- The fine structure of the gamma-line at 793 nm was experimentally observed and investigated for the first time.
Conclusions:
- The findings provide a new explanation for the gamma-line in nitrogen-containing cryocrystals.
- The study links the formation of nitrogen anions to specific luminescence and emission phenomena.
- The first observation of the gamma-line's fine structure offers new avenues for research into solid-state nitrogen physics.
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