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HGa


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

Gallium anion + Hydrogen cation = HGa

By formula: Ga- + H+ = HGa

Quantity Value Units Method Reference Comment
Deltar1546. ± 14.kJ/molD-EAWilliams, Carpenter, et al., 1998gas phase
Quantity Value Units Method Reference Comment
Deltar1523. ± 15.kJ/molH-TSWilliams, Carpenter, et al., 1998gas phase

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 by: John E. Bartmess

De-protonation reactions

Gallium anion + Hydrogen cation = HGa

By formula: Ga- + H+ = HGa

Quantity Value Units Method Reference Comment
Deltar1546. ± 14.kJ/molD-EAWilliams, Carpenter, et al., 1998gas phase
Quantity Value Units Method Reference Comment
Deltar1523. ± 15.kJ/molH-TSWilliams, Carpenter, et al., 1998gas phase

Constants of diatomic molecules

Go To: Top, Reaction thermochemistry data, 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 July, 1976

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 (69)GaH
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
Open-structure absorption bands in the region 41650 - 46300 cm-1, provisionally ascribed to GaH.
Garton, 1951
A 1Pi     [5.1] 1 2     [1.82] A lrarrow x R 23714 HQ
Neuhaus, 1957; Ginter and Innes, 1961; Kronekvist, Lagerqvist, et al., 1971
a 3Pi2     [6.811]   [0.000620] 3  [1.5785] a rarrow X V 17909.43 Z
missing citation
a 3Pi1 17622.01 1631.17 Z 58.22 -7.47 6.692 4 0.326 5 -0.0315 0.000489 6  1.5925 a lrarrow X VR 17626.84 Z
Neuhaus, 1957; missing citation
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
a 3Pi0+ 17337.08 1640.54 Z 62.72 7 -6.195 6.394 4 0.276 8 -0.04 0.000262 9  1.6292 a lrarrow X RV 17345.78 Z
Neuhaus, 1957; missing citation
a 3Pi0- 17333 [1492.5] Z 10  6.358 0.220 11 -0.058 [0.000243] 12  1.6338 a rarrow X 13 RV 17340.41 Z
Poynor, Innes, et al., 1967
X 1Sigma+ 0 1604.52 Z 28.77 0.36 6.137 4 0.181 14 -0.0005 0.000342 15  1.6630  

Notes

1From the value for GaD.
2Deuteride bands involving this level have diffuse rotational lines whose width increases with J. Corresponding lines of the hydride are even broader, only diffuse Q and R heads can be recognized. The diffuseness results from tunnelling through a potential maximum which separates the shallow potential well from the dissociation limit 2P3/2 + 2S.
3DRP - DQ= +12E-6.
4RKR potential functions Ginter and Battino, 1965.
5Rotational constants derived from R and P branches. Slightly different Bv and Dv values from the Q branches; see Ginter and Innes, 1961.
6Dv= -124E-6(v+1/2) + 83.5E-6(v+1/2)2; see 5.
7missing note
8missing note
9Dv= +75E-6(v+1/2) + 14.5E-6(v+1/2)2.
10DeltaG(3/2) = 1313.6.
11missing note
12D1 = 4l3E-6, D2 = 463E-6.
13Each band consists of a single Q branch.
14missing note
15Dv= +1E-6(v+1/2)2.
16From the predissociation of A 1Pi(v=0), see 2.
17Calculated from v0(0-1) = 22745.8 using ground state vibrational constants derived from GaH. The 0-0 band was not observed owing to a strong overlapping impurity.

References

Go To: Top, Reaction thermochemistry data, 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.

Williams, Carpenter, et al., 1998
Williams, W.W.; Carpenter, D.L.; Covington, A.M.; Koepnick, M.C.; Calabrese, D.; Thompson, J.S., Laser photodetachment electron spectrometry of Ga-, J. Phys. B: Atom. Mol. Opt. Phys., 1998, 31, 8, L341-L345, https://doi.org/10.1088/0953-4075/31/8/003 . [all data]

Garton, 1951
Garton, W.R.S., Extension of line series in the arc spectrum of indium: ultra-violet absorption bands probably due to InH and GaH, Proc. Phys. Soc. London Sect. A, 1951, 64, 509. [all data]

Neuhaus, 1957
Neuhaus, H., Band spectrum of gallium hydride and gallium deuteride, Nature (London), 1957, 180, 433. [all data]

Ginter and Innes, 1961
Ginter, M.L.; Innes, K.K., Band spectrum of the GaH molecule, J. Mol. Spectrosc., 1961, 7, 64. [all data]

Kronekvist, Lagerqvist, et al., 1971
Kronekvist, M.; Lagerqvist, A.; Neuhaus, H., The A1«PI»-X1«SIGMA»+ transition in the spectra of GaH and GaD, J. Mol. Spectrosc., 1971, 39, 516. [all data]

Poynor, Innes, et al., 1967
Poynor, P.C.; Innes, K.K.; Ginter, M.L., The a3«PI»0- --> X1«SIGMA»+ transition of the GaH molecule, J. Mol. Spectrosc., 1967, 23, 237. [all data]

Ginter and Battino, 1965
Ginter, M.L.; Battino, R., On the calculation of potential curves by the Rydberg-Klein-Rees method. I. Experimental limitations, extrapolation procedures, and applications to the third-group hydrides, J. Chem. Phys., 1965, 42, 3222. [all data]


Notes

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