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mercury chloride


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
Deltafgas78.45kJ/molReviewChase, 1998Data last reviewed in December, 1961
Quantity Value Units Method Reference Comment
gas,1 bar260.00J/mol*KReviewChase, 1998Data last reviewed in December, 1961

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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Temperature (K) 298. - 6000.
A 37.36504
B 0.854850
C -0.011692
D 0.001004
E -0.107381
F 66.91178
G 304.3622
H 78.45000
ReferenceChase, 1998
Comment Data last reviewed in December, 1961

Constants of diatomic molecules

Go To: Top, Gas phase thermochemistry 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 January, 1975

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 (202)Hg35Cl
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
D (2Pi3/2) 39703.5 341.8 HQ 1.87        D lrarrow X V 39727.7 HQ
Wieland, 1929; missing citation; missing citation; missing citation
C (2Pi1/2) (35782) (383) 1         C lrarrow X (V) 35828
Wieland, 1929; Wieland, 1932; missing citation; missing citation; Wieland, 1941; Howell, 1944; Wieland, 1948; Krishnamurthy, 1958; missing citation
B 2Sigma+ 23421.0 192.0 2 H 0.50 2        B rarrow X RV 23371.0 H
Wieland, 1929; Wieland, 1932; missing citation; missing citation; Wieland, 1948, 2
X 2Sigma+ 0 292.61 H 1.6025 3       [(2.23)] 4  

Notes

1From the absorption spectrum Horne, Gosavi, et al., 1968.
2For v geq 30: omegae = 186.2, omegaexe = 0.40.
3omegaeze = -0.000033. All constants refer to R heads of B-X. From Q heads of D-X omegae = 293.4, omegaexe = 1.82.
4From electron diffraction data Maxwell and Mosley, 1940; according to Wieland, 1941 more likely corresponding to the Hg-Cl separation in HgCl2 than in HgCl.

References

Go To: Top, Gas phase thermochemistry 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.

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Wieland, 1929
Wieland, K., Bandenspektren der quecksilber-, cadmium- und zinkhalogenide, Helv. Phys. Acta, 1929, 2, 46. [all data]

Wieland, 1932
Wieland, K., Absorptions- und fluoreszenzspektren dampfformiger quecksilberhalogenide. II. HgBr2 und HgCl2, Z. Phys., 1932, 77, 157. [all data]

Wieland, 1941
Wieland, K., Das langwellige emissions- und fluoreszenzspektrum («lambda»«lambda» 5700-3000 ÅE.) von naturlichem HgCl und von kunstlich angereichertem HgCl37, Helv. Phys. Acta, 1941, 14, 420. [all data]

Howell, 1944
Howell, H.G., The ultra-violet spectra and electron configuration of HgF and related halide molecules, Proc. R. Soc. London A, 1944, 182, 95. [all data]

Wieland, 1948
Wieland, K., Spectres d'absorption des halogenures de mercure (HgX2) en equilibre thermique au-dessus de 1000°C, J. Chim. Phys. Phys.-Chim. Biol., 1948, 45, 3. [all data]

Krishnamurthy, 1958
Krishnamurthy, V.G., Ultra-violet bands of mercury chloride, Z. Phys., 1958, 150, 287. [all data]

Wieland, 1948, 2
Wieland, K., Molekulspektren mit Ionencharakter und ihre Beeinflussung durch Fremdgase in Contribution a l'Etude de la Structure Moleculaire, Desoer, Liege, ed(s)., 1948, 229-238. [all data]

Horne, Gosavi, et al., 1968
Horne, D.G.; Gosavi, R.; Strausz, O.P., Reactions of metal atoms. I. The combination of mercury and chlorine atoms and the dimerization of HgCl, J. Chem. Phys., 1968, 48, 4758. [all data]

Maxwell and Mosley, 1940
Maxwell, L.R.; Mosley, V.M., Internuclear distances in Se2, Te2, and HgCl by electron diffraction, Phys. Rev., 1940, 57, 21. [all data]


Notes

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