strontium sulphide


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
Δfgas25.860kcal/molReviewChase, 1998Data last reviewed in September, 1977
Quantity Value Units Method Reference Comment
gas,1 bar58.105cal/mol*KReviewChase, 1998Data last reviewed in September, 1977

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 3000.3000. to 6000.
A 7.837199-51.6729096.77560
B 3.99030246.45459-34.97359
C -5.051521-9.9393315.187020
D 2.2737500.525512-0.270520
E -0.01398028.62280-140.4240
F 23.3392091.63631-163.6500
G 66.5246940.7879151.68901
H 25.8599925.8599925.85999
ReferenceChase, 1998Chase, 1998Chase, 1998
Comment Data last reviewed in September, 1977 Data last reviewed in September, 1977 Data last reviewed in September, 1977

Condensed 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
Δfsolid-112.00kcal/molReviewChase, 1998Data last reviewed in September, 1977
Quantity Value Units Method Reference Comment
solid16.33cal/mol*KReviewChase, 1998Data last reviewed in September, 1977

Solid 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 3000.
A 11.65900
B 2.289610
C -0.572800
D 0.096769
E -0.060600
F -115.7830
G 29.43979
H -112.0000
ReferenceChase, 1998
Comment Data last reviewed in September, 1977

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 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 88Sr32S
StateTeωeωexeωeyeBeαeγeDeβereTrans.ν00
B 1Σ+ 39332.1 286.80 Z 0.84  0.10566 1 0.000320  0.575E-7  2.6087 B ← X R 39281.42 Z
missing citation
X 1Σ+ 0 388.38 Z 1.31  0.12072 0.000440  0.475E-7  2.4405  

Notes

1Extensive perturbations.
2Thermochemical value (mass-spectrometry) Marquart and Berkowitz, 1963, Colin, Goldfinger, et al., 1964, Cater and Johnson, 1967.

References

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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]

Marquart and Berkowitz, 1963
Marquart, J.R.; Berkowitz, J., Dissociation energies of some metal sulfides, J. Chem. Phys., 1963, 39, 283. [all data]

Colin, Goldfinger, et al., 1964
Colin, R.; Goldfinger, P.; Jeunehomme, M., Mass-spectrometric studies of vaporization of the sulphides of calcium, strontium and barium. The dissociation energy of S2 and SO, Trans. Faraday Soc., 1964, 60, 306. [all data]

Cater and Johnson, 1967
Cater, E.D.; Johnson, E.W., Sublimation of strontium sulfide and the dissociation energy of SrS, J. Chem. Phys., 1967, 47, 5353. [all data]


Notes

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