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Strontium 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
Deltafgas-123.85kJ/molReviewChase, 1998Data last reviewed in December, 1972
Quantity Value Units Method Reference Comment
gas,1 bar252.28J/mol*KReviewChase, 1998Data last reviewed in December, 1972

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. - 1500.1500. - 6000.
A 37.0850548.58042
B 1.254719-8.589586
C -0.6002622.447891
D 0.167540-0.160674
E -0.103054-5.739360
F -135.2993-148.2408
G 296.2347302.0266
H -123.8460-123.8460
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1972 Data last reviewed in December, 1972

Gas phase ion energetics data

Go To: Top, Gas phase 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:
LL - Sharon G. Lias and Joel F. Liebman
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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to ClSr+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
5.51 ± 0.06EVALBelyaev, Gotkis, et al., 1990LL
5.27 ± 0.13CIMeyer, Schulze, et al., 1984LBLHLM
5.10 ± 0.06EILoginov and Mittsev, 1971LLK
5.59 ± 0.10EIHildenbrand, 1970RDSH
5.3 ± 0.5EIHildenbrand, 1970, 2RDSH

Constants of diatomic molecules

Go To: Top, Gas phase 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 September, 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 (88)Sr35Cl
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
H 2Sigma+ 34256.7 364.6 H 1.08        H rarrow B 18562.7 H
Novikov and Gurvich, 1965
           H lrarrow X V 34287.8 H
Harrington, 1942; Novikov and Gurvich, 1965
G (2Delta) 34085.4 356.7 H 1.0        G rarrow A 18996.4 H
Novikov and Gurvich, 1965
34059.6 356.7 H 1.0        G rarrow A 19264.8 H
Novikov and Gurvich, 1965
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
F (2Pi) 32974.8 354.2 H 1.09        F rarrow B 17277.5 H
Novikov and Gurvich, 1965
32905.9 354.2 H 1.09        F rarrow B 17208.4 H
Novikov and Gurvich, 1965
           F rarrow A 17884.6 H
Novikov and Gurvich, 1965
           F rarrow A 18109.9 H
Novikov and Gurvich, 1965
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
E 2Sigma+ 32201.8 346.3 H 1.10        E rarrow A 17396.1 H
Novikov and Gurvich, 1965
           E lrarrow X V 32223.8 H
Harrington, 1942; Novikov and Gurvich, 1965
D 2Sigma+ 28822.9 344.8 H 1.04        D rarrow B 13123.7 H
Novikov and Gurvich, 1965
           D rarrow A 13727.0 H
Novikov and Gurvich, 1965
           D rarrow A 14021.8 H
Novikov and Gurvich, 1965
           D lrarrow X V 28844.1 H
Harrington, 1942; Novikov and Gurvich, 1965
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
C 2Pi 25399.8 283.4 H 0.92        C lrarrow X 1 R 25390.4 H
Parker, 1935; More and Cornell, 1938; Novikov and Gurvich, 1965
25244.6 282.1 H 0.89        C lrarrow X 1 R 25234.5 H
Parker, 1935; More and Cornell, 1938; Novikov and Gurvich, 1965
B 2Sigma+ 15719.5 306.4 H 0.98        B lrarrow X 1 V 15721.5 2 H
Parker, 1935; missing citation; Harrington, 1942; Singh, Nair, et al., 1970
15719.5 306.4 H 0.98        B lrarrow X 1 V 15713.1 2 H
Parker, 1935; missing citation; Harrington, 1942; Singh, Nair, et al., 1970
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
A 2Pi 15112.6 309.4 H 0.98        A lrarrow X 1 V 15116.1 H
Parker, 1935; More and Cornell, 1938; missing citation; Harrington, 1942; Novikov and Gurvich, 1965; Singh, Nair, et al., 1970
14818.4 309.4 H 0.98        A lrarrow X 1 V 14821.9 H
Parker, 1935; More and Cornell, 1938; missing citation; Harrington, 1942; Novikov and Gurvich, 1965; Singh, Nair, et al., 1970
X 2Sigma+ 0 302.3 H 0.95         

Notes

1 Dagdigian, Cruse, et al., 1974 have measured the following radiative lifetimes: tau(A)= 31 ns, tau(B)= 39 ns, tau(C)= 26 ns.
2Double heads on account of large spin doubling.
3Thermochemical value (mass-spectrometry) Hildenbrand, 1970, 2 in very good agreement with the most recent flame photometric results of Gurvich, Ryabova, et al., 1971, Gurvich, Ryabova, et al., 1973. Jonah and Zare, 1971 place a lower limit to the dissociation energy at 4.29 eV based on their study of the Sr + Cl2 chemiluminescent reaction.

References

Go To: Top, Gas phase 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.

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

Belyaev, Gotkis, et al., 1990
Belyaev, V.N.; Gotkis, I.S.; Lebedeva, N.L.; Krasnov, K.S., Ionization potentials of MX molecules (M = Ca, Sr, Ba; X = F, Cl, Br, I, OH, O), Russ. J. Phys. Chem., 1990, 64, 773. [all data]

Meyer, Schulze, et al., 1984
Meyer, H.-J.; Schulze, T.; Ross, U., Molecular beam study of the chemi-ionization in the reactive scattering of Ca and Sr with Cl2 and Br2 at collision energies C(c.m.)<4.5 eV, Chem. Phys., 1984, 90, 185. [all data]

Loginov and Mittsev, 1971
Loginov, M.V.; Mittsev, M.A., Thermal dissociation of SrCl2 molecules at a tungsten surface, Sov. Phys. Tech. Phys., 1971, 16, 557, In original 709. [all data]

Hildenbrand, 1970
Hildenbrand, D.L., Electron impact studies of the IIA metal chlorides, Intern. J. Mass Spectrom. Ion Phys., 1970, 4, 75. [all data]

Hildenbrand, 1970, 2
Hildenbrand, D.L., Dissociation energies and chemical bonding in the alkaline-earth chlorides from mass spectrometric studies, J. Chem. Phys., 1970, 52, 5751. [all data]

Novikov and Gurvich, 1965
Novikov, M.M.; Gurvich, L.V., A new study of the emission spectrum of the SrCl molecule, Opt. Spectrosc. Engl. Transl., 1965, 19, 76, In original 143. [all data]

Harrington, 1942
Harrington, Dissertation, University of California, California, 1942, 0. [all data]

Parker, 1935
Parker, A.E., Band systems of MgCl, CaCl, and SrCl, Phys. Rev., 1935, 47, 349. [all data]

More and Cornell, 1938
More, K.R.; Cornell, S.D., The band spectra of SrCl and SrH, Phys. Rev., 1938, 53, 806. [all data]

Singh, Nair, et al., 1970
Singh, J.; Nair, K.P.R.; Upadhya, K.N.; Rai, D.K., On the red bands of SrCl molecule, Opt. Pura Apl., 1970, 3, 76. [all data]

Dagdigian, Cruse, et al., 1974
Dagdigian, P.J.; Cruse, H.W.; Zare, R.N., Radiative lifetimes of the alkaline earth monohalides, J. Chem. Phys., 1974, 60, 2330. [all data]

Gurvich, Ryabova, et al., 1971
Gurvich, L.V.; Ryabova, V.G.; Khitrov, A.N.; Starovoitov, E.M., Spectrophotometric determination of dissociation energies of molecules. I. SrCl and SrOH, High Temp. Engl. Transl., 1971, 9, 261, In original 290. [all data]

Gurvich, Ryabova, et al., 1973
Gurvich, L.V.; Ryabova, V.G.; Khitrov, A.N., Determination of dissociation energies of alkaline-earth chlorides, bromides and hydroxides by flame photometry, Faraday Symp. Chem. Soc., 1973, 8, 83. [all data]

Jonah and Zare, 1971
Jonah, C.D.; Zare, R.N., Formation of group IIA dihalides by two-body radiative association, Chem. Phys. Lett., 1971, 9, 65. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Constants of diatomic molecules, References