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Cobalt 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

Co- + Hydrogen cation = HCo

By formula: Co- + H+ = HCo

Quantity Value Units Method Reference Comment
Deltar1411. ± 25.kJ/molD-EAScheer, Brodie, et al., 1998gas phase
Quantity Value Units Method Reference Comment
Deltar1395. ± 13.kJ/molIMRBSallans, Lane, et al., 1985gas 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 as indicated in comments:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman

View reactions leading to CoH+ (ion structure unspecified)

Electron affinity determinations

EA (eV) Method Reference Comment
0.671 ± 0.010LPESMiller, Feigerle, et al., 1987B

Ionization energy determinations

IE (eV) Method Reference Comment
7.86 ± 0.07END/DERKickel and Armentrout, 1995LL
7.74 ± 0.08END/DERArmentrout and Kicket, 1995LL
7.3 ± 0.1DERLias, Bartmess, et al., 1988LL

De-protonation reactions

Co- + Hydrogen cation = HCo

By formula: Co- + H+ = HCo

Quantity Value Units Method Reference Comment
Deltar1411. ± 25.kJ/molD-EAScheer, Brodie, et al., 1998gas phase; B
Quantity Value Units Method Reference Comment
Deltar1395. ± 13.kJ/molIMRBSallans, Lane, et al., 1985gas phase; 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 December, 1974

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 59CoH
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A2           A2 larrow X2 R 21982 H
Smith, 1973
A1 Omega=4 4  [1527.8] Z 1   6.701 2 0.305  [0.000620] 3  1.5934 A1 rarrow X1 R 22243.3 1 Z
missing citation; missing citation
X2 
X1 Omega=4 4 0    [7.151]   [0.000405]  [1.5424]  

Notes

1Contrary to the definitions adopted in these tables the band origins here do not include the J-independent terms -Omega2Bv of the rotational energy expressions for the upper and lower states: the zero lines are obtained by adding -Omega2(B'v - B"v) to the values given in the table. Heimer Heimer, 1937, Heimer, 1937, 2 uses a different definition.
2v=0 perturbed from J ~ 10 to J ~ 20.
3D1 = 5.90E-4.
4Possibly 3Phi4 and 3Phi3; 3Phi2 not identified.
5Omega-type doubling Delta(v=0) = 0.36E-8J6. Deltav(v=1) = 0.45E-8J6.
6D1 = 1.326E-4.
7Perturbations in all three observed vibrational levels Klynning and Kronekvist, 1972.
8x2 ~ 800 cm-1, estimated from the difference B0(Omega=3) - B0(Omega=4).
9Constants derived from the upper Omega-type doubling component; Deltav = 3.42E-8J6+...
10H0 = +2.56E-9; D1 = 1.157E-4, H1 = +5.9E-9; D2 = 1.09E-4.

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.

Scheer, Brodie, et al., 1998
Scheer, M.; Brodie, C.A.; Bilodeau, R.C.; Haugen, H.K., Laser spectroscopic measurements of binding energies and fine-structure splittings of Co-, Ni-, Rh-, and Pd-, Phys. Rev. A, 1998, 58, 3, 2051-2062, https://doi.org/10.1103/PhysRevA.58.2051 . [all data]

Sallans, Lane, et al., 1985
Sallans, L.; Lane, K.R.; Squires, R.R.; Freiser, B.S., Generation and reactions of atomic metal anions in the gas phase. Determination of the heterolytic and homolytic bond energies of VH, VrH, FeH, CoH, and MoH, J. Am. Chem. Soc., 1985, 107, 4379. [all data]

Miller, Feigerle, et al., 1987
Miller, A.E.S.; Feigerle, C.S.; Lineberger, W.C., Laser photoelectron spectroscopy of CrH-, CoH-, and NiH-: Periodic trends in the electronic structure of the transition-metal hydrides, J. Chem. Phys., 1987, 86, 1549. [all data]

Kickel and Armentrout, 1995
Kickel, B.L.; Armentrout, P.B., Reactions of Fe+, Co+, and Ni+ with silane. Electronic state effects, comparison to reactions with methane, and M+-SiHx (x = 0-3) bond energies, J. Am. Chem. Soc., 1995, 117, 764. [all data]

Armentrout and Kicket, 1995
Armentrout, P.B.; Kicket, B.L., Reactions of Fe+, Co+, and Ni+ with silane. Electronic state effects, comparison to reactions with methane, and M+-SiHx (x = 0-3) bond energies, J. Am. Chem. Soc., 1995, 117, 764. [all data]

Lias, Bartmess, et al., 1988
Lias, S.G.; Bartmess, J.E.; Liebman, J.F.; Holmes, J.L.; Levin, R.D.; Mallard, W.G., Gas-phase ion and neutral thermochemistry, J. Phys. Chem. Ref. Data, Suppl. 1, 1988, 17, 1-861. [all data]

Smith, 1973
Smith, R.E., Diatomic hydride and deuteride spectra of the second row transition metals, Proc. R. Soc. London A, 1973, 332, 113. [all data]

Heimer, 1937
Heimer, A., Dissertation, Stockholm, 1937, 0. [all data]

Heimer, 1937, 2
Heimer, A., Das bandenspektrum des kobalthydrids, Z. Phys., 1937, 104, 448. [all data]

Klynning and Kronekvist, 1972
Klynning, L.; Kronekvist, M., Rotational analysis of the A-X band system of CoD, Phys. Scr., 1972, 6, 61. [all data]


Notes

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