Vacuum‐Ultraviolet Photolysis of N2O. I. Metastable Species Produced at 1470 Å

Various photometric techniques have been used to obtain information about the reactions and quantum yields of the metastable species formed in N2O photolysis at 1470 A. The total quantum yield of atoms is 1.0; O(1S) is produced with a quantum yield of 0.5; O(1D) has a measured quantum yield of 0.55, although this value may include electronically quenched O(1S); the N2(A3Σ) quantum yield is 0.08, which, from spin considerations, must also be equal to the O(3P) yield. N(2D) is produced, and reacts with N2O, apparently quite inefficiently, to give NO(B2Π).

[1]  R. Young,et al.  Reaction and Deactivation of O(1D) , 1968 .

[2]  R. Young,et al.  4000‐8000‐Å Emission from Far‐Ultraviolet Photolysis of N2O, NO, NO2, CO, CO2, and O2 , 1968 .

[3]  R. Young,et al.  Experiments on N2(A3Σu+). II. Excitation of NO , 1968 .

[4]  John Y. Yang,et al.  Photolysis of Nitrous Oxide at 1470 , 1967 .

[5]  R. Young,et al.  Deactivation of O(1D) , 1967 .

[6]  H. Okabe.  Excited Species and Their Contribution to NO(β, γ) Fluorescence in the Photodissociation of N2O , 1967 .

[7]  K. Welge.  Formation of N2(A3Σu+) and N(2D, 2P) by Photodissociation of HN3 and N2O and Their Reactions with NO and N2O , 1966 .

[8]  B. Thrush,et al.  Mechanism of chemiluminescent combination reactions involving oxygen atoms , 1962, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[9]  L. F. Phillips,et al.  Mass Spectrometric Studies of Atom Reactions. I. Reactions in the Atomic Nitrogen‐Ozone System , 1962 .

[10]  J. P. Doering,et al.  Photolysis of Nitrous Oxide. II. 1470 and 1830 A , 1962 .

[11]  J. P. Doering,et al.  Photolysis of Nitrous Oxide. I. 1236 A , 1961 .

[12]  W. Groth,et al.  The photolysis of nitrous oxide in the far ultraviolet , 1959 .

[13]  J. Kelso,et al.  Vibrationally Excited Ground‐State Nitrogen in Active Nitrogen , 1958 .

[14]  M. Zelikoff,et al.  Vacuum Ultraviolet Photochemistry. Part V. Nitrous Oxide at 1236 A , 1957 .

[15]  Ian W. M. Smith,et al.  Fluorescence of nitric oxide. Part 1.—Determination of the mean lifetime of the A2Σ+ state , 1963 .

[16]  R. Young,et al.  Excitation of the β, γ, δ, and Ogawa bands of nitric oxide in the association of atomic nitrogen and oxygen , 1962 .

[17]  A. Dalgarno,et al.  The Airglow and the Aurorae , 1955 .