Arsenic monoxide
- Formula: AsO
- Molecular weight: 90.9210
- IUPAC Standard InChI: InChI=1S/AsO/c1-2
- IUPAC Standard InChIKey: GPSSQIRGCXEBSH-UHFFFAOYSA-N
- CAS Registry Number: 12005-99-1
- Chemical structure:
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Gas phase ion energetics data
Go To: Top, 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 as indicated in comments:
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 9.0 ± 0.3 | EI | Brittain, Lau, et al., 1982 | LBLHLM |
| 8.8 ± 0.3 | EI | Lau, Brittain, et al., 1981 | LLK |
Constants of diatomic molecules
Go To: Top, Gas phase ion energetics 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 February, 1976
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| B 2Σ+ | 39866.0 | 1098.3 HQ | 6.1 | [0.51284] 1 2 | 0.0036 3 | [0.000000457] | 1.5764 | B ↔ X V | 38905.88 Z | |||
| ↳Connelly, 1934; missing citation; missing citation; Meyer, 1965; Lakshman and Rao, 1971 | ||||||||||||
| B ↔ X V | 39931.36 Z | |||||||||||
| C 2Δ 5/2 | 38686 | 655.7 4 | 4.53 | 0.4164 4 | 0.004 | [0.00000141] | 1.765 | C → X R | 37506 4 | |||
| ↳Lakshman and Rao, 1960; Goure, Figuet, et al., 1972; Anderson and Callomon, 1973 | ||||||||||||
| C 2Δ 3/2 | (38638) 5 | [0.4028] | C → X R | 38483 | ||||||||
| C' 2Φ or 2Δ | (38800) | (600) 6 | (0.3798) 6 | (0.0058) | ||||||||
| ↳Goure, Figuet, et al., 1972; Anderson and Callomon, 1973 | ||||||||||||
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
| D 2Σ- | 37555.4 | 629.9 7 Z | 3.79 | 0.3793 7 8 | 0.0034 | 0.00000065 | 1.7942 | d → x R | 36361.7 Z | |||
| ↳Lakshman and Rao, 1960; Callomon and Morgan, 1965; d'Incan and Goure, 1965; Meyer, 1965; Goure and d'Incan, 1969; Topouzkhanian, Goure, et al., 1970; Goure, Figuet, et al., 1972; Anderson and Callomon, 1973 | ||||||||||||
| d → x R | 37387.1 Z | |||||||||||
| D' 2Σ- | [37857] 9 | [0.360] 9 | ||||||||||
| ↳Anderson and Callomon, 1973 | ||||||||||||
| H 2Π 1/2 | 10 | H → X R | 10 | |||||||||
| ↳d'Incan and Goure, 1969; Anderson and Callomon, 1973 | ||||||||||||
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
| H 2Π 3/2 | 37053.7 | 606.92 Z | 4.913 | 0.36539 11 12 | 0.00273 | 0.00000054 | 1.8709 | H → X R | 35848.2 Z | |||
| ↳d'Incan and Goure, 1969; Anderson and Callomon, 1973 | ||||||||||||
| A 2Σ+ | 31652.45 | 686.68 Z | 10.78 | 0.4624 13 14 | 0.0071 | 0.000000856 15 | 0.18E-7 | 1.6631 | A → X R | 30485.28 Z | ||
| ↳missing citation; missing citation; Klynning, 1962; missing citation; Meyer, 1965; Lakshman and Rao, 1971 | ||||||||||||
| A → X R | 31510.87 Z | |||||||||||
| Fragments of additional systems of R shaded emission bands in the region 25000 - 30000 cm-1. | ||||||||||||
| ↳Venkataramanaiah and Lakshman, 1964; Anderson and Callomon, 1973 | ||||||||||||
| State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
| A' 2Π 1/2 | 26485.2 16 17 | 630.30 Z | 3.006 | 0.010 | 0.37183 11 18 17 | 0.002701 | 5.0E-07 | 1.8553 | A' → X R | 26317.30 Z | ||
| ↳Callomon and Morgan, 1965; missing citation; Goure and d'Incan, 1969; Kushawaha, Asthana, et al., 1972; Anderson and Callomon, 1973 | ||||||||||||
| A' 2Π 3/2 | 26168.4 | 633.23 Z | 2.895 | 0.37124 11 | 0.002622 | 5.0E-07 | 1.8553 | A' → X R | 24976.59 Z | |||
| Fragments of a weak system of R shaded emission bands in the region 15300 - 17300 cm-1. | ||||||||||||
| ↳Kushawaha, Asthana, et al., 1972 | ||||||||||||
| X 2Πr 3/2 | 1025.97 19 | 965.90 Z | 4.909 | -0.0034 | 0.48552 11 | 0.003320 | -0.0000046 | 0.00000049 | 1.6236 | |||
| X 2Πr 1/2 | 0 | 967.08 Z | 4.850 | -0.0015 | 0.48482 11 20 | 0.003299 | -0.0000025 | 0.00000049 | 1.6236 | |||
Notes
| 1 | Spin splitting constant γ0 = +0.0043. |
| 2 | Weak predissociation above v=0,N=20 ( missing citation for As18O) Callomon and Morgan, 1965, Meyer, 1965, attributed Callomon and Morgan, 1965 to interaction with the unstable 4Σ+ state arising from ground state atomic products. |
| 3 | Estimated from band head separations. |
| 4 | Deperturbed Goure, Figuet, et al., 1972 constants. Strong perturbations by successive levels in both doublet components of a 2Φ or 2Δ state, and possibly by other states. |
| 5 | Only v=0 observed. |
| 6 | From perturbations in C 2Δ5/2 vibrational numbering unknown. |
| 7 | v=0 and 1, formerly d'Incan and Goure, 1969 attributed to a 4Σ state, are perturbed by levels of a 2Σ- state and of H 2Π 1/2, 3/2 Anderson and Callomon, 1973. |
| 8 | The spin splitting constant γv increases from γ0 = +0.021 to γ7 = +0.039. |
| 9 | Lowest observed level, from a perturbation in D(v=0). Vibrational numbering unknown. |
| 10 | Bands of the 1/2-1/2 transition have not been identified. One level of 2Π1/2 (vibrational numbering unknown) may be responsible for a perturbation in D 2Σ- (v=0). |
| 11 | Effective constants. |
| 12 | Perturbations in v=1,2 by v=0,l, resp., of D 2Σ-. |
| 13 | Spin splitting constant γ = -0.035. |
| 14 | v=0,1,2 perturbed by v=9...12 of A' 2Π 1/2. Additional perturbations by unidentified levels of Σ and Π symmetry Callomon and Morgan, 1965, Anderson and Callomon, 1973. |
| 15 | He= -2.6E-12. |
| 16 | Ae = -316.08. |
| 17 | The levels v=9...12 of 2Π1/2 have been observed in perturbations of A 2Σ+(v=0,1,2) and were previously Callomon and Morgan, 1965 assigned to a state G 2Π. |
| 18 | Λ-type doubling Δνfe = -0.002(J+1/2). |
| 19 | Ae= +1026.94. |
| 20 | Λ-type doubling Δνfe = +0.0179(J+1/2). |
| 21 | From the predissociation in B 2Σ+. |
References
Go To: Top, Gas phase ion energetics 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.
Brittain, Lau, et al., 1982
Brittain, R.D.; Lau, K.H.; Hildenbrand, D.L.,
Molecular species in the As-O system,
J. Phys. Chem., 1982, 86, 5072. [all data]
Lau, Brittain, et al., 1981
Lau, K.H.; Brittain, R.D.; Hildenbrand, D.L.,
The dissociation energy of AsO from gaseous equilibrium measurements,
Chem. Phys. Lett., 1981, 81, 227. [all data]
Connelly, 1934
Connelly, F.C.,
The band spectrum of arsenic oxide (AsO),
Proc. Phys. Soc. London, 1934, 46, 790. [all data]
Meyer, 1965
Meyer, B.,
The ultraviolet spectrum of AsO,
J. Mol. Spectrosc., 1965, 18, 443. [all data]
Lakshman and Rao, 1971
Lakshman, S.V.J.; Rao, T.V.R.,
RKRV curves, r-centroids and Franck-Condon factors for certain bands of AsO and AsO+ molecules,
J. Phys. B:, 1971, 4, 269. [all data]
Lakshman and Rao, 1960
Lakshman, S.V.J.; Rao, P.T.,
Ultraviolet band spectra of AsO and AsO+,
Indian J. Phys., 1960, 34, 278. [all data]
Goure, Figuet, et al., 1972
Goure, J.P.; Figuet, J.; Massot, J.N.; d'Incan, J.,
Analyse rotationnelle des etats C2Δ et D2Σ- de AsO: perturbations de l'etat C,
Can. J. Phys., 1972, 50, 1926. [all data]
Anderson and Callomon, 1973
Anderson, V.M.; Callomon, J.H.,
Further analyses of the emission spectra of arsenic monoxide AsO,
J. Phys. B:, 1973, 6, 1664. [all data]
Callomon and Morgan, 1965
Callomon, J.H.; Morgan, J.E.,
Rotational analysis of the emission spectra of arsenic monoxide, AsO,
Proc. Phys. Soc. London, 1965, 86, 1091. [all data]
d'Incan and Goure, 1965
d'Incan, J.; Goure, J.P.,
Analyse de la structure de rotation de plusieurs bandes du systeme D → X2Π de la molecule AsO,
C.R. Acad. Sci. Paris, 1965, 261, 3086. [all data]
Goure and d'Incan, 1969
Goure, J.-P.; d'Incan, J.,
Nouvelles bandes de la molecule AsO,
C.R. Acad. Sci. Paris, Ser. B, 1969, 268, 1311. [all data]
Topouzkhanian, Goure, et al., 1970
Topouzkhanian, A.; Goure, J.-P.; Figuet, J.; d'Incan, J.,
Source pour l'emission dans l'ultraviolet du vide de spectres de molecules diatomiques lourdes et d'atomes. Cas des radicaux AsO, AsO+ et de l'atome d'arsenic,
C.R. Acad. Sci. Paris, Ser. B, 1970, 270, 1676. [all data]
d'Incan and Goure, 1969
d'Incan, J.; Goure, J.P.,
Nouveaux systemes de bandes electroniques attribues a la molecule AsO,
C.R. Acad. Sci. Paris, Ser. B, 1969, 268, 1647. [all data]
Klynning, 1962
Klynning, L.,
Das Bandenspektrum des Arsenikoxydes,
Die Naturwissenschaften, 1962, 49, 252. [all data]
Venkataramanaiah and Lakshman, 1964
Venkataramanaiah, M.; Lakshman, S.V.J.,
The emission band spectrum of AsO,
Indian J. Phys., 1964, 38, 209. [all data]
Kushawaha, Asthana, et al., 1972
Kushawaha, V.S.; Asthana, B.P.; Pathak, C.M.,
Chemical excitation of AsO,
J. Mol. Spectrosc., 1972, 41, 577. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Constants of diatomic molecules, References
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