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Selenium monohydride


Reaction thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: John E. Bartmess

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Individual Reactions

Se- + Hydrogen cation = Selenium monohydride

By formula: Se- + H+ = HSe

Quantity Value Units Method Reference Comment
Deltar1422. ± 4.6kJ/molD-EAVandevraye, Drag, et al., 2012gas phase; Given: 2.0206046(11) eV
Quantity Value Units Method Reference Comment
Deltar1397. ± 5.0kJ/molH-TSVandevraye, Drag, et al., 2012gas phase; Given: 2.0206046(11) eV

Gas phase ion energetics data

Go To: Top, 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 as indicated in comments:
B - John E. Bartmess
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

View reactions leading to HSe+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
Deltaf(+) ion1100.kJ/molN/AN/A 

Electron affinity determinations

EA (eV) Method Reference Comment
2.212525 ± 0.000044LPDStoneman and Larson, 1986 Wagman, Evans, et al., 1982 «DELTA»Hf(AH) = 7.1 kcal/mol; B
2.210 ± 0.030PDSmyth and Brauman, 1972B
2.29921N/ACheck, Faust, et al., 2001MnO-(t); ; «DELTA»S(EA)=5.5; B

Ionization energy determinations

IE (eV) Method Reference Comment
9.845 ± 0.003PIGibson, Greene, et al., 1986LBLHLM
9.79SDonovan, Little, et al., 1972LLK

De-protonation reactions

Se- + Hydrogen cation = Selenium monohydride

By formula: Se- + H+ = HSe

Quantity Value Units Method Reference Comment
Deltar1422. ± 4.6kJ/molD-EAVandevraye, Drag, et al., 2012gas phase; Given: 2.0206046(11) eV; B
Quantity Value Units Method Reference Comment
Deltar1397. ± 5.0kJ/molH-TSVandevraye, Drag, et al., 2012gas phase; Given: 2.0206046(11) eV; B

Constants of diatomic molecules

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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 July, 1977

Symbols used in the table of constants
SymbolMeaning
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)
Diatomic constants for (80)SeH
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
F   1        F larrow X1 71190
Donovan, Little, et al., 1972
E   2        E larrow X1 69604
Donovan, Little, et al., 1972
D   3        D larrow X1 66814
Donovan, Little, et al., 1972
C   4        C larrow X1 R 55797 HQ
Donovan, Little, et al., 1972
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A (2Sigma+) (31500) [1232] (H) (172) 5 6         
           A larrow X1 R 31048 (H)
Lindgren, 1968
X2 2Pi1/2 (1815) 7 (2400) 5   [7.78] 8     [1.475] 9  
Radford, 1964; Carrington, Currie, et al., 1970; Byfleet, Carrington, et al., 1971
X1 2Pi3/2 0 (2400) 5   [7.78] 8     [1.475] 9  
Radford, 1964; Carrington, Currie, et al., 1970; Byfleet, Carrington, et al., 1971

Notes

1Weak diffuse band.
2Diffuse band.
3Strong diffuse band.
4Strong double-headed band.
5From isotope relations between SeH and SeD.
6Diffuse bands.
7From the photodetachment spectra of SeH- and SeD-.
8Lambda-doubling frequencies Carrington, Currie, et al., 1970.
9ESR sp. 12
10Extrapolation of the vibrational levels in A 2Sigma+ assuming dissociation of this state into 2S + 1D.
11From Rydberg assignments of Donovan, Little, et al., 1972; doubtful.
12muel = 0.49 D Byfleet, Carrington, et al., 1971. 77Se hf coupling Carrington, Currie, et al., 1970.
13muel = 0.483 D Byfleet, Carrington, et al., 1971. 77Se hf coupling Carrington, Currie, et al., 1970.

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Vandevraye, Drag, et al., 2012
Vandevraye, M.; Drag, C.; Blondel, C., Electron affinity of selenium measured by photodetachment microscopy, Phys. Rev. A, 2012, 85, 1, 015401, https://doi.org/10.1103/PhysRevA.85.015401 . [all data]

Stoneman and Larson, 1986
Stoneman, R.C.; Larson, D.J., Photodetachment spectroscopy of SeH- in a magnetic field, J. Phys. B:, 1986, 19, 405. [all data]

Wagman, Evans, et al., 1982
Wagman, D.D.; Evans, W.H.; Parker, V.B.; Schumm, R.H.; Halow, I.; Bailey, S.M.; Churney, K.L.; Nuttall, R.L., The NBS Tables of Chemical Thermodynamic Properties (NBS Tech Note 270), J. Phys. Chem. Ref. Data, Supl. 1, 1982, 11. [all data]

Smyth and Brauman, 1972
Smyth, K.C.; Brauman, J.I., Photodetachment of an electron from selenide ion the electron affinity and spin- orbit coupling constant for SeH, J. Chem. Phys., 1972, 56, 5993. [all data]

Check, Faust, et al., 2001
Check, C.E.; Faust, T.O.; Bailey, J.M.; Wright, B.J.; Gilbert, T.M.; Sunderlin, L.S., Addition of Polarization and Diffuse Functions to the LANL2DZ Basis Set for P-Block Elements, J. Phys. Chem. A,, 2001, 105, 34, 8111, https://doi.org/10.1021/jp011945l . [all data]

Gibson, Greene, et al., 1986
Gibson, S.T.; Greene, J.P.; Berkowitz, J., A photoionization study of SeH and H2Se, J. Chem. Phys., 1986, 85, 4815. [all data]

Donovan, Little, et al., 1972
Donovan, R.J.; Little, D.J.; Konstantatos, J., Vacuum ultraviolet spectra of transient molecules and radicals, J. Chem. Soc. Faraday Trans. 2, 1972, 68, 1812. [all data]

Lindgren, 1968
Lindgren, B., Diffuse spectra of SeH and SeD, J. Mol. Spectrosc., 1968, 28, 536. [all data]

Radford, 1964
Radford, H.E., Synthesis of diatomic radicals, J. Chem. Phys., 1964, 40, 2732. [all data]

Carrington, Currie, et al., 1970
Carrington, A.; Currie, G.N.; Lucas, N.J.D., Electron resonance of gaseous diatomic hydrides. II. Rotational constant, «LAMBDA»-doubling, hyperfine structure and dipole moment of SeH and SeD, Proc. R. Soc. London A, 1970, 315, 355. [all data]

Byfleet, Carrington, et al., 1971
Byfleet, C.R.; Carrington, A.; Russell, D.K., Electric dipole moments of open-shell diatomic molecules, Mol. Phys., 1971, 20, 271. [all data]


Notes

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