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Active Nitrogen - 1st Edition - ISBN: 9780123955104, 9780323144575

Active Nitrogen

1st Edition

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Author: A. Nelson Wright
eBook ISBN: 9780323144575
Imprint: Academic Press
Published Date: 1st January 1968
Page Count: 614
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Active Nitrogen focuses on the experimental and theoretical investigations on active nitrogen. Divided into five chapters, the book starts by giving an introduction to the discovery of active nitrogen, the energy content, and the methods by which this may be produced. The succeeding part deals with light emissions from active nitrogen system. This discussion includes molecular spectrum of nitrogen, emission from atomic energy and condensed active nitrogen, emission from molecular species with electronic energy levels below and above 9.76 eV, and light-emitting systems of active nitrogen. The next part focuses on theories on active nitrogen. The theories discussed are long-lived Lewis-Rayleigh afterglow and short-lived, energetic afterglows. Numerical representations are provided to test the validity of the theories. Lastly, the discussions end with chemical reactions of active nitrogen. Topics contained in this part are text on recombination of N(4S) atoms; rate constants for reactions presumably induced by direct N(4S) attack; reactions caused by excited nitrogen molecular attack; and mechanism for reactions of active nitrogen that seem to influence direct N(4S) attack. The book is a valuable source of information for readers interested in the research on active nitrogen.

Table of Contents


1. Introduction

I. A Brief Description of Active Nitrogen and Its Discovery

II. The Energy Content of Active Nitrogen and the Bond Dissociation Energy of N2

III. Methods by Which Active Nitrogen May Be Produced

2. Light Emission from Active Nitrogen Systems

I. The Molecular Spectrum of Nitrogen

II. Emission from Molecular Species with Electronic Energy Levels below 9.76 eV

1. The First Positive System of N2, B 3Πg → A 3Σu+ (5000-25,000 Å)

2. The "Y" Bands of N2, B'3Σu- → B 3Πg, (6000-10,800 Å)

3. The Vegard-Kaplan System of N2, A 3Σu+ → X 1Σg+ (2100-5000 Å)

4. The Lyman-Birge-Hopfield System of N2, a 1Πg → X 1Σg+ (1200-2600 Å)

III. Emission from Molecular Species with Electronic Energy Levels above 9.76 eV

1. The Second Positive System of N2, C 3Πu → B 3Πg (2800-5450 Å)

2. The Goldstein-Kaplan System of N2, C' 3Πu → B 3Πg (2850-5100 Å)

3. The Birge-Hopfield Systems of N2, b 1Πu, and b' 1Σu+ → X 1Σg+ (930-1650 Å)

4. The First Negative System of N2+, B 2Σu+ → X 2Σg+ (2900-5900 Å)

IV. Emission from Atomic Nitrogen

V. Emission from Condensed Active Nitrogen or Activated Solid Nitrogen

VI. Summary of Light-Emitting Systems of Active Nitrogen

3. Afterglow Species, Their Lifetimes and Concentrations

I. Atomic Species

l. N(4S)

2. N(2D)

3. N(2P)

4. N(3s 4P)

5. N(3s 2P)

6. N(sp4 4P)

7. N(S6)

II. Molecular Species with Energy Content Less than 9.76 eV

1. N2+ (Vibrationally Excited Molecule in the Ground Electronic State)

2. N2(A 3Σu+)

3. N2(B 3Πu+)

4. N2(3Δu)

5. N2(B' 3Σu-)

6. N2(a' 1Σu-)

7. N2(a' 1Πg)

8. N2(w 1Πu)

9. N2(5Σg+)

III. Molecular Species with Energy Content Greater than 9.76 eV

1. N2(C' 3Πu)

2. N2(C' 3Πu)

3. N2(b 1Πu) and N2(b' 1Σu+)

4. N2+(X2Σg+)

5. N2+(B2Σu+)

IV. Other Species

1. The N3 Radical

2. Electrons

3. Ions Other than N2+(X 2Σg+) and N2+(B 2Σu+)

V. Summary

4. Theories of Active Nitrogen

I. The Long-Lived Lewis-Rayleigh Afterglow

1. Older Theories

2. The Ionic Theory of Mitra

3. Modern Theories

II. The Short-Lived, Energetic Afterglow

5. Chemical Reactions of Active Nitrogen

I. Recombination of N(4S) Atoms

1. Homogeneous Recombination

2. Heterogeneous Recombination

II. Survey of Reactions Investigated

1. Reactions Followed Mainly by Induced Light Emission

2. Reactions Followed by Analysis for the Products Formed

III. Mechanisms for Reactions of Active Nitrogen That Appear to Involve Direct N(4S) Attack

IV. Rate Constants for Reactions Presumably Induced by Direct N(4S) Attack

V. Reactions Possibly Induced by Excited Nitrogen Molecule Attack

1. Survey of Reaction Systems That Might Be Involved

2. Rate Constants for Reactions Assumed to Be Initiated by a Collision of the Second Kind


Author Index

Subject Index


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© Academic Press 1968
1st January 1968
Academic Press
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A. Nelson Wright

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