A Study on the Reduction of Nitric Oxide Molecule (NO) to Nitroxyl Anion (NO-) by Vibrational Energy

Vibrational energy transfer and a chemical reaction between nitric oxide and the cyanogen radical have been studied by flash photolysing cyanogen and cyanogen bromide in the presence of nitric oxide. The product of the chemical reaction is, at least in part, the unstable compound nitrosyl cyanide NOCN and the rate constant is 2 x 10 12 ml. mole -1 s -1 or 1 x 10 17 ml. mole -2 s -1 with nitrogen as third body. The compound has a continuous absorption in the ultra-violet and yields vibrationally excited nitric oxide on photolysis. Vibrationally excited cyanogen radicals produced by means of electronic excitation of the radical produce vibrational excitation of the nitric oxide through near resonance energy exchange. Vibrational equilibrium is reached by nitric oxide through further resonance exchanges: CN + NO → NOCN, NOCN + hv → N O ( v > 0) + CN, NO ( v = 0) + CN ( v = n ) → NO ( v = 1) + CN ( v = n – 1 ) , NO ( v = 1) + CN ( v = m ) → NO ( v = 2) + CN ( v = m –1 ), 2NO { v = 1) ⇌ NO ( v = 2) + NO ( v = 0), NO ( v = 2) +NO ( v = 1) ⇌ NO ( v = 3) + NO { v = 0), etc.

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Radiative relaxation of molecular vibration of the nitric oxide molecule as a possible source of the infrared shuttle glow

Planetary and Space Science ◽

10.1016/0032-0633(85)90070-4 ◽

1985 ◽

Vol 33 (10) ◽

pp. 1119-1124 ◽

Cited By ~ 4

Author(s):

Masataka Mizushima ◽

Tatsuo Shimazaki

Keyword(s):

Nitric Oxide ◽

Molecular Vibration ◽

Radiative Relaxation ◽

Oxide Molecule

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Absorption spectrum in the vacuum ultraviolet and visible emission spectrum of the NO molecule. The 4d complex

Canadian Journal of Physics ◽

10.1139/p69-113 ◽

1969 ◽

Vol 47 (8) ◽

pp. 881-891 ◽

Cited By ~ 22

Author(s):

R. Suter

Keyword(s):

Nitric Oxide ◽

Absorption Spectrum ◽

Emission Spectrum ◽

Vacuum Ultraviolet ◽

Visible Emission ◽

Resolving Power ◽

Weak Band ◽

Oxide Molecule ◽

Rydberg Electron

The structure of the 4d Rydberg term complex of the nitric oxide molecule has been studied by rotational analyses of the following bands photographed with spectrographs of high resolving power: (i) the weak band 4d–X2Π observed at 1470 Å in the absorption spectrum, (ii) the group 4d–3p of Rydberg–Rydberg bands observed as 4d–C2Π (6400 Å) and 4d–D2Σ+ (6800 Å) bands in the emission spectrum of a discharge. A type of l uncoupling of the Rydberg electron of the molecule is found very similar to the case already known for the 3d complex of NO. Constants characterizing the d complexes are calculated, and a comparison of the 3d and 4d complex is made.

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Energy disequilibrium in the flash photolysis of NO 2

Proceedings of the Royal Society of London Series A - Mathematical and Physical Sciences ◽

10.1098/rspa.1973.0109 ◽

1973 ◽

Vol 334 (1599) ◽

pp. 553-568 ◽

Cited By ~ 2

Keyword(s):

Nitric Oxide ◽

Flash Photolysis ◽

Vibrational Energy ◽

Dissociation Limit ◽

Primary Process ◽

Transfer Energy ◽

Vibrationally Excited ◽

Absolute Concentrations ◽

The Absolute ◽

Excited Oxygen

From measurements of the absolute concentrations of vibrationally excited oxygen produced in levels v" = 4 to v" = 13, it is concluded that ca . 20 % of the exothermicity of the reaction O( 3 P) + NO 2 → NO + O + 2 ( v" ≤11) (1) appears initially as vibrational energy in oxygen. Vibrationally excited nitric oxide ( v" = 1, 2) is also observed and may be produced in this reaction or in the primary process NO 2 + hv → NO ( v" ≤ 2) + O( 3 P). More highly excited oxygen ( v" ≤ 15), with energy exceeding the exothermicity of the reaction, is produced in reaction (1) when the NO 2 is first excited by radiation above the dissociation limit near 400 nm. The excited NO 2 thus produced can also transfer energy to nitric oxide. NO 2 * + NO( v" = 0) → NO 2 + NO( v" = 1).

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