science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2019

Substance: nitrogen					Other Names:

Formula: N2						CAS-No.: 7727-37-9

Study: UV absorption spectrum

                
Authors: R.E. Huffman, Y. Tanaka, J.C. Larrabee

Title: Absorption Coefficients of Nitrogen in the 1000–580 A Wavelength Region

Journal/Source: J. Chem. Phys., 39, 910-925, (1963); http://link.aip.org/link/doi/10.1063/1.1734391


Data: table, diagram

Energy/Wavelength range: 58 - 100 nm

Resolution: 0.05 nm

Temperature: 298 K

Temperature dependence: no

Pressure/Concentration: 0.040 - 0.17 Torr

Phase: gas

pH


Comments: From 1000 to 796 Å, the first ionization threshold a number of sharp, intense bands are present with no 
evidence of a dissociation continuum. Below 796 Å, the ionization continuum appears to rise slowly to 400 cm-1 at 742 Å
but this region is also crowded with many intense bands. Most of these appear to be strongly preionized. Between 742 Å 
and 661 Å, the ionization continuum increases from roughly 400 to 780 cm-1, and the pre-ionized Hopfield Rydberg 
series is the main feature. At 661 Å, the absorption coefficient rises abruptly to 980 cm-1 and continues at approximately 
this constant value to 580 Å.

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