Strontium monochloride
- Formula: ClSr
- Molecular weight: 123.07
- IUPAC Standard InChIKey: XFDAMOCMNCFGMN-UHFFFAOYSA-M
- CAS Registry Number: 14989-33-4
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, Gas phase ion energetics 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.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -29.601 | kcal/mol | Review | Chase, 1998 | Data last reviewed in December, 1972 |
Quantity | Value | Units | Method | Reference | Comment |
S°gas,1 bar | 60.296 | cal/mol*K | Review | Chase, 1998 | Data 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 (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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Temperature (K) | 298. to 1500. | 1500. to 6000. |
---|---|---|
A | 8.863540 | 11.61100 |
B | 0.299885 | -2.052961 |
C | -0.143466 | 0.585060 |
D | 0.040043 | -0.038402 |
E | -0.024631 | -1.371740 |
F | -32.33731 | -35.43040 |
G | 70.80179 | 72.18609 |
H | -29.59990 | -29.59990 |
Reference | Chase, 1998 | Chase, 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 ± 0.06 | EVAL | Belyaev, Gotkis, et al., 1990 | LL |
5.27 ± 0.13 | CI | Meyer, Schulze, et al., 1984 | LBLHLM |
5.10 ± 0.06 | EI | Loginov and Mittsev, 1971 | LLK |
5.59 ± 0.10 | EI | Hildenbrand, 1970 | RDSH |
5.3 ± 0.5 | EI | Hildenbrand, 1970, 2 | RDSH |
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
Symbol | Meaning |
---|---|
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) |
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
H 2Σ+ | 34256.7 | 364.6 H | 1.08 | H → B | 18562.7 H | |||||||
↳Novikov and Gurvich, 1965 | ||||||||||||
H ↔ X V | 34287.8 H | |||||||||||
↳Harrington, 1942; Novikov and Gurvich, 1965 | ||||||||||||
G (2Δ) | 34085.4 | 356.7 H | 1.0 | G → A | 18996.4 H | |||||||
↳Novikov and Gurvich, 1965 | ||||||||||||
34059.6 | 356.7 H | 1.0 | G → A | 19264.8 H | ||||||||
↳Novikov and Gurvich, 1965 | ||||||||||||
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
F (2Π) | 32974.8 | 354.2 H | 1.09 | F → B | 17277.5 H | |||||||
↳Novikov and Gurvich, 1965 | ||||||||||||
32905.9 | 354.2 H | 1.09 | F → B | 17208.4 H | ||||||||
↳Novikov and Gurvich, 1965 | ||||||||||||
F → A | 17884.6 H | |||||||||||
↳Novikov and Gurvich, 1965 | ||||||||||||
F → A | 18109.9 H | |||||||||||
↳Novikov and Gurvich, 1965 | ||||||||||||
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
E 2Σ+ | 32201.8 | 346.3 H | 1.10 | E → A | 17396.1 H | |||||||
↳Novikov and Gurvich, 1965 | ||||||||||||
E ↔ X V | 32223.8 H | |||||||||||
↳Harrington, 1942; Novikov and Gurvich, 1965 | ||||||||||||
D 2Σ+ | 28822.9 | 344.8 H | 1.04 | D → B | 13123.7 H | |||||||
↳Novikov and Gurvich, 1965 | ||||||||||||
D → A | 13727.0 H | |||||||||||
↳Novikov and Gurvich, 1965 | ||||||||||||
D → A | 14021.8 H | |||||||||||
↳Novikov and Gurvich, 1965 | ||||||||||||
D ↔ X V | 28844.1 H | |||||||||||
↳Harrington, 1942; Novikov and Gurvich, 1965 | ||||||||||||
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
C 2Π | 25399.8 | 283.4 H | 0.92 | C ↔ X 1 R | 25390.4 H | |||||||
↳Parker, 1935; More and Cornell, 1938; Novikov and Gurvich, 1965 | ||||||||||||
25244.6 | 282.1 H | 0.89 | C ↔ X 1 R | 25234.5 H | ||||||||
↳Parker, 1935; More and Cornell, 1938; Novikov and Gurvich, 1965 | ||||||||||||
B 2Σ+ | 15719.5 | 306.4 H | 0.98 | B ↔ 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 ↔ X 1 V | 15713.1 2 H | ||||||||
↳Parker, 1935; missing citation; Harrington, 1942; Singh, Nair, et al., 1970 | ||||||||||||
State | Te | ωe | ωexe | ωeye | Be | αe | γe | De | βe | re | Trans. | ν00 |
A 2Π | 15112.6 | 309.4 H | 0.98 | A ↔ 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 ↔ 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 2Σ+ | 0 | 302.3 H | 0.95 |
Notes
1 | Dagdigian, Cruse, et al., 1974 have measured the following radiative lifetimes: τ(A)= 31 ns, τ(B)= 39 ns, τ(C)= 26 ns. |
2 | Double heads on account of large spin doubling. |
3 | Thermochemical 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
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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