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Boron monochloride


Gas phase 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.

Quantity Value Units Method Reference Comment
Deltafgas141.42kJ/molReviewChase, 1998Data last reviewed in December, 1964
Quantity Value Units Method Reference Comment
gas,1 bar213.19J/mol*KReviewChase, 1998Data last reviewed in December, 1964

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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View table.

Temperature (K) 298. - 6000.
A 35.53685
B 1.963460
C -0.420881
D 0.035666
E -0.416421
F 129.3450
G 253.2830
H 141.4192
ReferenceChase, 1998
Comment Data last reviewed in December, 1964

Gas phase ion energetics 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 as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to BCl+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
10.2DERLias, Bartmess, et al., 1988LL
12. ± 1.EISrivastava and Farber, 1971LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
B+13.6 ± 0.2ClEIMarriott and Craggs, 1957RDSH

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 March, 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 11B35Cl
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A 1Pi 36750.92 849.04 HQ 11.37 1 -0.100 0.7054 2 0.00820 3 -0.00050 1.60E-06 4 0.00000027 1.6894 A lrarrow X 5 VR 36754.30 HQ
missing citation
a 3Pi1 20200 911 5.7  0.6986 0.0047    1.698 a rarrow X V 20235.70 Z
Lebreton, Marsigny, et al., 1971
X 1Sigma+ 0 839.12 HQ 5.11  0.6838 2 0.00646  0.00000172 0.00000007 1.7159  

Notes

1omegaeze = -0.0271.
2RKR potential curve Gelebart and Johannin-Gilles, 1968.
3missing note
4Extrapolation of A 1Pi; see Barrow, 1960.
5Radiative lifetime tau(v=0,1,2)= 19.1 ns Hesser, 1968; f00(AlarrowX) = 0.11.
6betae= 0.7E-7

References

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Constants of diatomic molecules, NIST Free Links, 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., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [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]

Srivastava and Farber, 1971
Srivastava, R.D.; Farber, M., Thermodynamic properties of the B-Cl-F system from mass spectrometer investigations, J. Chem. Soc. Faraday Trans., 1971, 67, 2298. [all data]

Marriott and Craggs, 1957
Marriott, J.; Craggs, J.D., Ionization and dissociation by electron impact. II. Boron trifluoride and boron trichloride, J. Electron. Control, 1957, 3, 194. [all data]

Lebreton, Marsigny, et al., 1971
Lebreton, J.; Marsigny, L.; Ferran, J., Caracterisation d'une nouvelle transition de la molecule 11B35Cl (systeme 3«PI»1-->X1«SIGMA»+), C.R. Acad. Sci. Paris, Ser. C, 1971, 272, 1094. [all data]

Gelebart and Johannin-Gilles, 1968
Gelebart, F.; Johannin-Gilles, A., Les courbes d'energie potentielle des etats 1«PI» et 1«SIGMA»+ de la molecule BCl, C.R. Acad. Sci. Paris, Ser. B, 1968, 267, 408. [all data]

Barrow, 1960
Barrow, R.F., Dissociation energies of the gaseous monohalides of boron, aluminium, gallium, indium, and thallium, Trans. Faraday Soc., 1960, 56, 952. [all data]

Hesser, 1968
Hesser, J.E., Absolute Transition Probabilities in Ultraviolet Molecular Spectra, J. Chem. Phys., 1968, 48, 6, 2518, https://doi.org/10.1063/1.1669477 . [all data]


Notes

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