Nitrogen cation
- Formula: N2+
- Molecular weight: 28.0129
- IUPAC Standard InChIKey: OCLMUTJUZGFVFC-UHFFFAOYSA-N
- CAS Registry Number: 13966-04-6
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, Reaction thermochemistry data, Ion clustering data, Constants of diatomic molecules, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
S°gas,1 bar | 197.65 | J/mol*K | Review | Chase, 1998 | Data last reviewed in September, 1977 |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, Ion clustering data, Constants of diatomic molecules, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Michael M. Meot-Ner (Mautner) and Sharon G. Lias
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
By formula: N2+ + N2 = (N2+ • N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 102. to 102. | kJ/mol | RNG | N/A | Range of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 87.9 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
ΔrS° | 67.8 | J/mol*K | PHPMS | Teng and Conway, 1973 | gas phase |
ΔrS° | 81.6 | J/mol*K | PHPMS | Payzant and Kebarle, 1970 | gas phase |
ΔrS° | 46. | J/mol*K | DT | Varney, 1968 | gas phase; Entropy change is questionable |
ΔrS° | -4. | J/mol*K | DT | Varney, 1959 | gas phase; Entropy change is questionable |
By formula: N2+ + Ar = (N2+ • Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 112. | kJ/mol | PD/KERD | Kim and Bowers, 1990 | gas phase; switching reaction(N2+)N2; Hiraoka and Nakajima, 1988 |
ΔrH° | 106. | kJ/mol | PHPMS | Teng and Conway, 1973 | gas phase; switching reaction(N2+)N2 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 81.6 | J/mol*K | PD/KERD | Kim and Bowers, 1990 | gas phase; switching reaction(N2+)N2; Hiraoka and Nakajima, 1988 |
ΔrS° | 57.3 | J/mol*K | PHPMS | Teng and Conway, 1973 | gas phase; switching reaction(N2+)N2 |
By formula: (N2+ • 7Ar) + Ar = (N2+ • 8Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 6.40 | kJ/mol | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase; Entropy change calculated or estimated |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 71. | J/mol*K | N/A | Hiraoka, Mori, et al., 1992 | gas phase; Entropy change calculated or estimated |
By formula: (N2+ • 8Ar) + Ar = (N2+ • 9Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 6.36 | kJ/mol | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase; Entropy change calculated or estimated |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 71. | J/mol*K | N/A | Hiraoka, Mori, et al., 1992 | gas phase; Entropy change calculated or estimated |
By formula: (N2+ • N2) + N2 = (N2+ • 2N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.5 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
ΔrH° | 5.9 | kJ/mol | PI | Linn, Ono, et al., 1981 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 62.8 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • Ar) + Ar = (N2+ • 2Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16. | kJ/mol | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase; ΔrH> |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 71. | J/mol*K | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase; ΔrH> |
By formula: (N2+ • 10N2) + N2 = (N2+ • 11N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 6.9 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 84.5 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 9N2) + N2 = (N2+ • 10N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 7.4 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 86.6 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 2N2) + N2 = (N2+ • 3N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.3 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 66.1 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 3N2) + N2 = (N2+ • 4N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 10.5 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 69.5 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 4N2) + N2 = (N2+ • 5N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 10.3 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 85.8 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 5N2) + N2 = (N2+ • 6N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 9.5 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 90.8 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 6N2) + N2 = (N2+ • 7N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 8.5 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 85.4 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 7N2) + N2 = (N2+ • 8N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 7.8 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 80.8 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 8N2) + N2 = (N2+ • 9N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 7.4 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 81.6 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 2Ar) + Ar = (N2+ • 3Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 7.3 ± 0.8 | kJ/mol | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 57.3 | J/mol*K | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
By formula: (N2+ • 3Ar) + Ar = (N2+ • 4Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 7.0 ± 0.8 | kJ/mol | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 74.9 | J/mol*K | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
By formula: (N2+ • 4Ar) + Ar = (N2+ • 5Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 6.6 ± 0.8 | kJ/mol | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 71.1 | J/mol*K | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
By formula: (N2+ • 5Ar) + Ar = (N2+ • 6Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 6.5 ± 0.8 | kJ/mol | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 72.8 | J/mol*K | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
By formula: (N2+ • 6Ar) + Ar = (N2+ • 7Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 6.4 ± 0.8 | kJ/mol | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 72.4 | J/mol*K | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
By formula: N2+ + He = (N2+ • He)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 2. | kJ/mol | PDiss | Bieske, Soliva, et al., 1990 | gas phase; same ΔrH for N2+(B) and (N2+)X; ab initio, Miller, Tennyson, et al., 1988 |
Ion clustering data
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Constants of diatomic molecules, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Michael M. Meot-Ner (Mautner) and Sharon G. Lias
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
By formula: N2+ + Ar = (N2+ • Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 112. | kJ/mol | PD/KERD | Kim and Bowers, 1990 | gas phase; switching reaction(N2+)N2; Hiraoka and Nakajima, 1988 |
ΔrH° | 106. | kJ/mol | PHPMS | Teng and Conway, 1973 | gas phase; switching reaction(N2+)N2 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 81.6 | J/mol*K | PD/KERD | Kim and Bowers, 1990 | gas phase; switching reaction(N2+)N2; Hiraoka and Nakajima, 1988 |
ΔrS° | 57.3 | J/mol*K | PHPMS | Teng and Conway, 1973 | gas phase; switching reaction(N2+)N2 |
By formula: (N2+ • Ar) + Ar = (N2+ • 2Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 16. | kJ/mol | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase; ΔrH> |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 71. | J/mol*K | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase; ΔrH> |
By formula: (N2+ • 2Ar) + Ar = (N2+ • 3Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 7.3 ± 0.8 | kJ/mol | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 57.3 | J/mol*K | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
By formula: (N2+ • 3Ar) + Ar = (N2+ • 4Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 7.0 ± 0.8 | kJ/mol | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 74.9 | J/mol*K | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
By formula: (N2+ • 4Ar) + Ar = (N2+ • 5Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 6.6 ± 0.8 | kJ/mol | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 71.1 | J/mol*K | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
By formula: (N2+ • 5Ar) + Ar = (N2+ • 6Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 6.5 ± 0.8 | kJ/mol | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 72.8 | J/mol*K | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
By formula: (N2+ • 6Ar) + Ar = (N2+ • 7Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 6.4 ± 0.8 | kJ/mol | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 72.4 | J/mol*K | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase |
By formula: (N2+ • 7Ar) + Ar = (N2+ • 8Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 6.40 | kJ/mol | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase; Entropy change calculated or estimated |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 71. | J/mol*K | N/A | Hiraoka, Mori, et al., 1992 | gas phase; Entropy change calculated or estimated |
By formula: (N2+ • 8Ar) + Ar = (N2+ • 9Ar)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 6.36 | kJ/mol | PHPMS | Hiraoka, Mori, et al., 1992 | gas phase; Entropy change calculated or estimated |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 71. | J/mol*K | N/A | Hiraoka, Mori, et al., 1992 | gas phase; Entropy change calculated or estimated |
By formula: N2+ + He = (N2+ • He)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 2. | kJ/mol | PDiss | Bieske, Soliva, et al., 1990 | gas phase; same ΔrH for N2+(B) and (N2+)X; ab initio, Miller, Tennyson, et al., 1988 |
By formula: N2+ + N2 = (N2+ • N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 102. to 102. | kJ/mol | RNG | N/A | Range of 6 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 87.9 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
ΔrS° | 67.8 | J/mol*K | PHPMS | Teng and Conway, 1973 | gas phase |
ΔrS° | 81.6 | J/mol*K | PHPMS | Payzant and Kebarle, 1970 | gas phase |
ΔrS° | 46. | J/mol*K | DT | Varney, 1968 | gas phase; Entropy change is questionable |
ΔrS° | -4. | J/mol*K | DT | Varney, 1959 | gas phase; Entropy change is questionable |
By formula: (N2+ • N2) + N2 = (N2+ • 2N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.5 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
ΔrH° | 5.9 | kJ/mol | PI | Linn, Ono, et al., 1981 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 62.8 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 2N2) + N2 = (N2+ • 3N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 11.3 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 66.1 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 3N2) + N2 = (N2+ • 4N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 10.5 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 69.5 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 4N2) + N2 = (N2+ • 5N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 10.3 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 85.8 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 5N2) + N2 = (N2+ • 6N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 9.5 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 90.8 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 6N2) + N2 = (N2+ • 7N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 8.5 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 85.4 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 7N2) + N2 = (N2+ • 8N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 7.8 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 80.8 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 8N2) + N2 = (N2+ • 9N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 7.4 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 81.6 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 9N2) + N2 = (N2+ • 10N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 7.4 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 86.6 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
By formula: (N2+ • 10N2) + N2 = (N2+ • 11N2)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 6.9 ± 0.8 | kJ/mol | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 84.5 | J/mol*K | PHPMS | Hiraoka and Nakajima, 1988 | gas phase |
Constants of diatomic molecules
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Ion clustering data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Klaus P. Huber and Gerhard H. Herzberg
Data collected through March, 1977
Symbol | Meaning |
---|---|
State | electronic state and / or symmetry symbol |
Te | minimum electronic energy (cm-1) |
ωe | vibrational constant – first term (cm-1) |
ωexe | vibrational constant – second term (cm-1) |
ωeye | vibrational constant – third term (cm-1) |
Be | rotational constant in equilibrium position (cm-1) |
αe | rotational constant – first term (cm-1) |
γe | rotation-vibration interaction constant (cm-1) |
De | centrifugal distortion constant (cm-1) |
βe | rotational constant – first term, centrifugal force (cm-1) |
re | internuclear distance (Å) |
Trans. | observed transition(s) corresponding to electronic state |
ν00 | position of 0-0 band (units noted in table) |
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Several other much weaker X-ray emissions corresponding to higher levels of N2+. | ||||||||||||
↳Werme, Grennberg, et al., 1973; Werme, Grennberg, et al., 1973, 2 | ||||||||||||
x 2 | x → C | 384.5 eV 1 | ||||||||||
↳Werme, Grennberg, et al., 1973; Werme, Grennberg, et al., 1973, 2 | ||||||||||||
x | x → B | 391.33 eV | ||||||||||
↳Werme, Grennberg, et al., 1973; Werme, Grennberg, et al., 1973, 2 | ||||||||||||
x → A 3 | 393.34 eV | |||||||||||
↳Werme, Grennberg, et al., 1973; Werme, Grennberg, et al., 1973, 2 | ||||||||||||
x → X | 394.40 eV 4 | |||||||||||
↳Werme, Grennberg, et al., 1973; Werme, Grennberg, et al., 1973, 2 | ||||||||||||
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
G 2Σg+ | (195000) 5 | |||||||||||
↳Gardner and Samson, 1975 | ||||||||||||
C 2Σu+ | 64608.1 6 | 2071.5 6 Z | 9.29 7 | -0.43 | [1.5098] | 8 9 | 4.0E-6 | [1.2628] | C 10 → X R | 64542.0 Z | ||
↳Tanaka, 1953; missing citation; missing citation; Lofthus and Krupenie, 1977 | ||||||||||||
D 2Πgi | 52318.2 11 | 907.71 Z | 11.91 12 | 0.016 | 1.113 | 0.020 | 5E-6 | 1.471 | D → A R | 42654.0 Z | ||
↳missing citation; Janin, d'Incan, et al., 1963 | ||||||||||||
(a 4Σu+) | (25467) | (2398) | (14) | (2.071) | (0.014) | (a → X) 13 | (25563.26) | |||||
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
B 2Σu+ | 25461.46 | 2419.84 Z | 23.189 14 15 | -0.5375 | [2.07456] 16 17 | 0.024 18 | 6.17E-6 | 1.0742 | B ↔ X 19 20 VR | 25566.04 Z | ||
↳missing citation; Coster and Brons, 1931; Douglas, 1952; missing citation; Klynning and Pages, 1972; Colbourn and Douglas, 1977 | ||||||||||||
A 2Πui | 9166.95 21 | 1903.70 22 Z | 15.02 15 | 1.7444 23 17 | 0.01883 23 | 5.6E-6 23 | 1.1749 | A → X 24 25 R | 9015.57 Z | |||
↳Douglas, 1953; Colbourn and Douglas, 1977 | ||||||||||||
X 2Σg+ | 0 | 2207.00 Z | 16.10 26 15 | -0.040 | 1.93176 27 17 | 0.01881 | [6.10E-6] 28 | 1.11642 |
Notes
1 | Vertical transition. |
2 | K state of N2 (removal of one K electron) |
3 | Consisting of a v" progression (v"= 0...5). |
4 | Observed X-ray emission line leading to X 2Σg+(v=0); the value predicted from the K limit and I.P.(N2) is 393.9 eV. The X-ray line has a shoulder at 394.17 eV probably corresponding to v"=1. |
5 | Repulsive state corresponding to removal of a 2σg electron and dissociating into N(4S) + N+(2s2p3 3P), observed in photoelectron and photoion spectra with maximum at 39.8 and limit at 37.86 eV. |
6 | Different constants are derived by Joshi, 1966 who assumes that the levels v=0,1,2 are perturbed and therefore does not include them in the evaluation: he gives Te = 64562.93 cm-1 Joshi, 1966. |
7 | Vibrational numbering confirmed by 14N-15N isotope shifts Baer and Miescher, 1953, Namioka, Yoshino, et al., 1963, Joshi, 1966, 2. Additional vibrational levels (to v'=17) observed by Asbrink and Fridh, 1974 in the photoelectron spectrum. |
8 | Bv(v=1)= 1.5096, Bv(v=2)= 1.5035, Bv(v=3)= 1.4970, Bv(v=4)= 1.4898, Bv(v=5)= 1.4804, Bv(v=6)= 1.4700. The shape of the Bv curve is anomalous; meaningful equilibrium constants have not been determined. Spin doubling partially resolved for high N values Carroll, 1959. |
9 | In a discharge through He+N2 the v'=3 bands are strongly enhanced. It has been suggested Douglas, 1952 that this enhancement is due to inverse predissociation, i.e. N(4S) + N+(3P) → N2+(C 2Σu+): see also Carroll, 1959. Direct predissociation, i.e. the production of N+ ions, has been observed mass- spectrometrically Wankenne and Momigny, 1971, Wankenne, Bolduc, et al., 1975: see also Fournier, Ozenne, et al., 1970, Fournier, van de Runstraat, et al., 1971. According to Wankenne and Momigny, 1971 the "metastable" ion N2+(C 2Σu+) has a lifetime of 0.8 μs before radiationless decomposition; see, however, van de Runstraat, de Heer, et al., 1974 and 10. The question which state causes the predissociation has been the subject of much discussion Lorquet and Lorquet, 1974, Tellinghuisen and Albritton, 1975, Roche and Lefebvre-Brion, 1975 following the discovery of a large isotope effect on this predissociation Govers, van de Runstraat, et al., 1973, Govers, Fehsenfeld, et al., 1974, van de Runstraat, de Heer, et al., 1974, Govers, van de Runstraat, et al., 1975. See also Fournier, Govers, et al., 1972. Another predissociation limit at 26.70 eV above N2(X 1Σg+,v=0) and corresponding to 2D0 + 3P has been observed by Asbrink and Fridh, 1974. |
10 | Radiative lifetime of the nonpredissociated levels τ(v≤2) = 0.09 μs Fournier, van de Runstraat, et al., 1971. |
11 | A = -16.5. |
12 | Vibrational numbering confirmed by 14N-15N isotope shifts Namioka, Yoshino, et al., 1963. |
13 | The identification of this quartet-doublet transition by d'Incan and Topouzkhanian, 1975 has been questioned by Dressler, 1976 who considers it as the first negative system of 14N15N+. |
14 | ωeze = -0.0495; these constants, derived from ω0, ω0x0, ... of Coster and Brons, 1931, represent the unperturbed vibrational levels only to v=10: for v>10 the ΔG curve shows a positive curvature. Levels observed up to v=29 Douglas, 1952. |
15 | Experimental Franck-Condon factors for photoionization into these states from the ground state of N2 Spohr and Puttkamer, 1967, Comes and Speier, 1971, Gardner and Samson, 1974; theoretical Franck-Condon factors Lofthus and Krupenie, 1977, Albritton, Schmeltekopf, et al., 1979; see also Kosinov and Skovorodko, 1973, Lee and Rabalais, 1974. |
16 | Spin splitting constant γ0 = +0.0229 Colbourn and Douglas, 1977: γ' - γ" = 0.015 Bouchoux, Bacis, et al., 1976. Rotational intensity distribution Bouchoux, Bacis, et al., 1976; see also Desesquelles, Cao, et al., 1975. |
17 | RKR potential functions Singh and Rai, 1966, see also Joshi, 1966, 3, Hajj, 1975. |
18 | Valid only to v=3. Rotational perturbations by A 2Πu in v=1,3,5,8,9,13; see Herzberg, 1928, Coster and Brons, 1931, Childs, 1932, Parker, 1933, Brons, 1934, Klynning and Pages, 1972. |
19 | Lifetime τ(v=0) = 60.5 ns Dotchin and Chupp, 1973, Smith, Read, et al., 1975, see Dotchin and Chupp, 1973, Smith, Read, et al., 1975 and earlier work quoted by them. Perturbed rotational levels (e.g. v=1, N=13,14) have lifetimes up to τ(v=1,N=13,14)= 95 ns Dufayard, Negre, et al., 1974. f00= 0.019 Nicholls, 1963; the electronic f value at the wavelength of the 0-1 band is f= 0.034 Wray and Connolly, 1965. |
20 | Observed in absorption in flash discharges Herzberg, 1968; laser-induced fluorescence Engelking and Smith, 1975. From intensity measurements Lee and Judge, 1973 conclude that the electronic transition moment is nearly independent of r; see, however, Nicholls, 1963, Kiselyovskii and Shimanovich, 1968, Brown and Landshoff, 1971. Franck-Condon factors Grandmontagne, Jorus, et al., 1970, Comes and Speier, 1971, Lofthus and Krupenie, 1977. |
21 | A(v=2,3)= -74.62, small J dependence Colbourn and Douglas, 1977. |
22 | From Janin, d'Incan, et al., 1963; Colbourn and Douglas, 1977 give ΔG(5/2) = 1813.327. Levels observed in nitrogen ion beams to v=30 Maier and Holland, 1973. Vibrational numbering confirmed by 15N2+ data Liu, 1959. |
23 | From the rotational constants for v=2,3 Colbourn and Douglas, 1977; also Λ-type doubling constants. For higher but less accurate Bv values see Janin, d'Incan, et al., 1963. βe = +0.18E-6 Colbourn and Douglas, 1977. |
24 | Lifetime varies from 13.9 μs for v=1 to 7.3 μs for v=8: see Peterson and Moseley, 1973,who give references to earlier work, and Gray, Roberts, et al., 1972, Maier and Holland, 1973. Transition probabilities, f values: f00= 0.00168 Cartwright, 1973. |
25 | The bands were observed in the aurora Meinel, 1950 before they were discovered in the laboratory Douglas, 1953. Dependence of the electronic transition moment on r Koppe, Koval, et al., 1968, Cartwright, 1973, Maier and Holland, 1973, Wu and Shemansky, 1976, Mandelbaum and Feldman, 1976. |
26 | These constants Klynning and Pages, 1972 are only very slightly different from those implied by Douglas, 1952 who gives ω0, ω0x0 ... ΔG(1/2) = 2174.728 Colbourn and Douglas, 1977. |
27 | From B0 and B1 of Colbourn and Douglas, 1977. Spin splitting constant γ(v=0,1) =0.0083 Colbourn and Douglas, 1977; see also Bouchoux, Bacis, et al., 1976. |
28 | D1 = 6.38E-6 Colbourn and Douglas, 1977: higher, less accurate Dv values in Klynning and Pages, 1972. |
29 | From D00(N2) + I.P.(N) - I.P.(N2). |
30 | From the electron impact appearance potential of N2++ Dorman and Morrison, 1963 and I.P.(N2). See also Appell, Durup, et al., 1973 and ref. given there. |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Ion clustering data, Constants of diatomic molecules, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Chase, 1998
Chase, M.W., Jr.,
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Clustering Equilibrium N2+ + 2N2 = N4+ + N2 and the Bond Dissociation Energy of N4+,
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Werme, Grennberg, et al., 1973, 2
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Gardner and Samson, 1975
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Tanaka, Y.,
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Lofthus and Krupenie, 1977
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Nouvelle analyse du systeme D2Πg-A2Πu de la molecule N2+,
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Douglas, 1952
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Klynning and Pages, 1972
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On the first negative system of N2+,
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Colbourn and Douglas, 1977
Colbourn, E.A.; Douglas, A.E.,
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Douglas, 1953
Douglas, A.E.,
Analysis of the 2Π-2Σ bands of the N2+ molecule,
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Joshi, K.C.,
The spectrum of the C-X system of N2+,
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Baer and Miescher, 1953
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NO-, NO+- und N2+-Emissionsspektren im Schumanngebiet,
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Namioka, Yoshino, et al., 1963
Namioka, T.; Yoshino, K.; Tanaka, Y.,
Isotope bands and the vibration assignment of the D2Πg-A2Πu system of N2+,
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Joshi, 1966, 2
Joshi, K.C.,
The C2Σu+ - X2Σg+ system of 15N2+,
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Asbrink, L.; Fridh, C.,
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Carroll, 1959
Carroll, P.K.,
The C-X system of N2+,
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Wankenne and Momigny, 1971
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Monomolecular and collision-induced predissociation in the mass spectrum of N2+,
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Wankenne, Bolduc, et al., 1975
Wankenne, H.; Bolduc, E.; Marmet, P.,
Ionisation dissociative de N2,
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Fournier, Ozenne, et al., 1970
Fournier, P.; Ozenne, J.-B.; Durup, J.,
Vibrational structure of predissociating molecular states: velocity spectrum of N+ fragments from fast N2+ ions,
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Fournier, van de Runstraat, et al., 1971
Fournier, P.; van de Runstraat, C.A.; Govers, T.R.; Schopman, J.; De Heer, F.J.; Los, J.,
Collision-induced dissociation of 10 keV N2+ ions: evidence for predissociation of the C2Σu+ state,
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van de Runstraat, de Heer, et al., 1974
van de Runstraat, C.A.; de Heer, F.J.; Govers, T.R.,
Excitation and decay of the C2Σu+ state of N2+ in the case of electron impact on N2,
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Lorquet and Lorquet, 1974
Lorquet, A.J.; Lorquet, J.C.,
Isotopic effects in accidental predissociation. The case of the C2Σu+ state of N2+,
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Tellinghuisen and Albritton, 1975
Tellinghuisen, J.; Albritton, D.L.,
Predissociation of the C2Σ+u state of N2+,
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Roche and Lefebvre-Brion, 1975
Roche, A.L.; Lefebvre-Brion, H.,
Some ab initio calculations related to the predissociation of the C2Σu+ state of N2+,
Chem. Phys. Lett., 1975, 32, 155. [all data]
Govers, van de Runstraat, et al., 1973
Govers, T.R.; van de Runstraat, C.A.; de Heer, F.J.,
Isotope effects in the predissociation of the C2Σu+ state of N2+,
J. Phys. B:, 1973, 6, 73. [all data]
Govers, Fehsenfeld, et al., 1974
Govers, T.R.; Fehsenfeld, F.C.; Albritton, D.L.; Fournier, P.G.; Fournier, J.,
Molecular isotope effects in the thermal-energy charge exchange between He+ and N2,
Chem. Phys. Lett., 1974, 26, 134. [all data]
Govers, van de Runstraat, et al., 1975
Govers, T.R.; van de Runstraat, C.A.; de Heer, F.J.,
Excitation and decay of the C2Σu+ state of N2+ following collisions of He+ ions with N2 isotopes,
Chem. Phys., 1975, 9, 285. [all data]
Fournier, Govers, et al., 1972
Fournier, P.G.; Govers, T.R.; van de Runstraat, C.A.; Schopman, J.; Los, J.,
Translational spectroscopy of the unimolecular dissociation N2+ → N+ + N,
J. Phys. (Paris), 1972, 33, 755. [all data]
d'Incan and Topouzkhanian, 1975
d'Incan, J.; Topouzkhanian, A.,
High resolution analysis of collision-induced N2+ spectrum,
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Dressler, 1976
Dressler, K.,
On the reported 4Σu+-2Σg+ transition of N2+,
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Spohr and Puttkamer, 1967
Spohr, R.; Puttkamer, E.v.,
Energiemessung von Photoelektronen und Franck-Condon-Faktoren der Schwingungsubergange einiger Molekulionen,
Z. Naturforsch., 1967, 22a, 705. [all data]
Comes and Speier, 1971
Comes, F.J.; Speier, F.,
Luminescence of diatomic molecular ions. I. Franck-Condon-factors and collisional deactivation,
Z. Naturforsch. A, 1971, 26, 1998. [all data]
Gardner and Samson, 1974
Gardner, J.L.; Samson, J.A.R.,
Experimental vibrational intensity distributions for continuum photoionization to the X2Σ+, A2Π, and B2Σ+ states of CO+ and N2+,
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Albritton, Schmeltekopf, et al., 1979
Albritton; Schmeltekopf; Zare,
Diatomic Intensity Factors, to be published, cited in Huber and Herzberg, 1979, Wiley, 1979, 1. [all data]
Kosinov and Skovorodko, 1973
Kosinov, V.A.; Skovorodko, P.A.,
Calculation of the Franck-Condon factors for the processes involved in the excitation of the molecular bands of the first negative system of nitrogen and carbon monoxide,
Opt. Spectrosc. Engl. Transl., 1973, 35, 344, In original 587. [all data]
Lee and Rabalais, 1974
Lee, T.H.; Rabalais, J.W.,
Vibrational transition probabilities in photoelectron spectra,
J. Chem. Phys., 1974, 61, 2747. [all data]
Bouchoux, Bacis, et al., 1976
Bouchoux, A.M.; Bacis, R.; Goure, J.P.; Lambert, A.M.,
Relative intensities of the rotational lines of the (0, 0) and (0, 1) bands of the B2Σu+ - X2Σg+ systems of N2+,
J. Quant. Spectrosc. Radiat. Transfer, 1976, 16, 451. [all data]
Desesquelles, Cao, et al., 1975
Desesquelles, J.; Cao, G.D.; Vaissade, A.,
Etude de l'excitation rotationnelle de l'etat B2Σ de N2+ par impact d'ions lourds,
J. Phys. (Paris), 1975, 36, 795. [all data]
Singh and Rai, 1966
Singh, R.B.; Rai, D.K.,
Potential-energy curves for O2+, N2+, and CO+,
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Joshi, 1966, 3
Joshi, K.C.,
Potential energy curves for the C2Σu+ and X2Σg+ states of N2+,
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Hajj, 1975
Hajj, F.Y.,
Internuclear potential for the B state of N2+,
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Herzberg, 1928
Herzberg, G.,
1. Uber die struktur der negativen stickstoffbanden,
Ann. Phys. (Vierte Folge), 1928, 86, 189. [all data]
Childs, 1932
Childs, W.H.J.,
Peturbations and rotation constants of some first negative nitrogen bands,
Proc. R. Soc. London A, 1932, 137, 641. [all data]
Parker, 1933
Parker, A.E.,
Rotational analysis of the perturbed (13,15) 2Σ - 2Σ N2+ band,
Phys. Rev., 1933, 44, 90. [all data]
Brons, 1934
Brons, H.H.,
Perturbations in the (9,8) 2Σ→2Σ N2+-band,
Physica (The Hague), 1934, 1, 739. [all data]
Dotchin and Chupp, 1973
Dotchin, L.W.; Chupp, E.L.,
Radiative lifetimes and pressure dependence of the relaxation rates of some vibronic levels in N2+, N2, CO+, and CO,
J. Chem. Phys., 1973, 59, 3960. [all data]
Smith, Read, et al., 1975
Smith, A.J.; Read, F.H.; Imhof, R.E.,
Measurement of the lifetimes of ionic excited states using the inelastic electron-photon delayed coincidence technique,
J. Phys. B:, 1975, 8, 2869. [all data]
Dufayard, Negre, et al., 1974
Dufayard, J.; Negre, J.M.; Nedelec, O.,
Perturbation effects on lifetimes in N2+,
J. Chem. Phys., 1974, 61, 3614. [all data]
Nicholls, 1963
Nicholls, R.W.,
Einstein A coefficients, oscillator strengths and absolute band strengths for the N2 second positive and N2+ first negative systems,
J. Atmos. Terr. Phys., 1963, 25, 218. [all data]
Wray and Connolly, 1965
Wray, K.L.; Connolly, T.J.,
Electronic f-number of the N2+(1-) band system,
J. Quant. Spectrosc. Radiat. Transfer, 1965, 5, 633. [all data]
Herzberg, 1968
Herzberg, G.,
Absorption spectra of molecular ions,
Comment. Pontif. Acad. Sci., 1968, 2, 15, 1-8. [all data]
Engelking and Smith, 1975
Engelking, P.C.; Smith, A.L.,
Tunable laser fluorescence spectroscopy of the molecular nitrogen cation at 390 nm,
Chem. Phys. Lett., 1975, 36, 21. [all data]
Lee and Judge, 1973
Lee, L.C.; Judge, D.L.,
The electronic transition moment of the N2+ (B2Σu+ → X2Σg+) system,
J. Phys. B:, 1973, 6, 121. [all data]
Kiselyovskii and Shimanovich, 1968
Kiselyovskii, L.I.; Shimanovich, V.D.,
Experimental determination of the matrix elements of the electronic transition dipole moment in the first negative band system of the N2+ molecule using an arc filament in an axial-vortex air flow,
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Brown and Landshoff, 1971
Brown, W.A.; Landshoff, R.K.,
The electronic transition moment of the N2+ first negative system,
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Grandmontagne, Jorus, et al., 1970
Grandmontagne, R.; Jorus, A.-M.; Vincent, F.,
Calcul theorique des intensites de bandes du premier systeme negatif de l'azote,
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Maier and Holland, 1973
Maier, W.B., II; Holland, R.F.,
Visible and near ultraviolet light produced by the radiative decay of the long-lived states in a nitrogen ion beam,
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Liu, 1959
Liu, I.D.,
The vibrational numbering of the A2Π-X2Σ bands of N2+,
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Peterson and Moseley, 1973
Peterson, J.R.; Moseley, J.T.,
Time-of-flight determination of lifetimes of N2+(A2Πu)- the Meinel band system,
J. Chem. Phys., 1973, 58, 172. [all data]
Gray, Roberts, et al., 1972
Gray, D.D.; Roberts, T.D.; Morack, J.L.,
Measured lifetimes of some A 2Πu vibrational levels of N2+ molecules,
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Cartwright, 1973
Cartwright, D.C.,
Transition probabilities for the Meinel band system of N2+,
J. Chem. Phys., 1973, 58, 178. [all data]
Meinel, 1950
Meinel, A.B.,
A new band system of N2+ in the infrared auroral spectrum,
Astrophys. J., 1950, 112, 562. [all data]
Koppe, Koval, et al., 1968
Koppe, V.T.; Koval, A.G.; Gritsyna, V.V.; Fogel, Ya.M.,
Dependence of the electronic transition moment Re upon the internuclear spacing r for the Meinel band system of the N2+ ion,
Opt. Spectrosc. Engl. Transl., 1968, 24, 440. [all data]
Wu and Shemansky, 1976
Wu, H.H.; Shemansky, D.E.,
Electronic transition moment of the N2+(A2Πu-X2Σg+) system,
J. Chem. Phys., 1976, 64, 1134. [all data]
Mandelbaum and Feldman, 1976
Mandelbaum, D.; Feldman, P.D.,
Electron impact excitation of the Meinel band system of N2+,
J. Chem. Phys., 1976, 65, 672. [all data]
Dorman and Morrison, 1963
Dorman, F.H.; Morrison, J.D.,
Ionization potentials of doubly charged oxygen and nitrogen,
J. Chem. Phys., 1963, 39, 1906. [all data]
Appell, Durup, et al., 1973
Appell, J.; Durup, J.; Fehsenfeld, F.C.; Fournier, P.,
Double charge transfer spectroscopy of diatomic molecules,
J. Phys. B:, 1973, 6, 197. [all data]
Huber and Herzberg, 1979
Huber, K.P.; Herzberg, G.,
Molecular Spectra and Molecular Structure. IV. Constants of Diatomic Molecules, Van Nostrand Reinhold Company, New York, 1979, 716. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Ion clustering data, Constants of diatomic molecules, References
- Symbols used in this document:
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