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Silicon monosulfide


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
Deltafgas25.325kcal/molReviewChase, 1998Data last reviewed in December, 1971
Quantity Value Units Method Reference Comment
gas,1 bar53.480cal/mol*KReviewChase, 1998Data last reviewed in December, 1971

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. - 6000.
A 8.524470
B 0.522856
C -0.187598
D 0.026416
E -0.086666
F 22.47140
G 63.16171
H 25.32510
ReferenceChase, 1998
Comment Data last reviewed in December, 1971

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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman

Quantity Value Units Method Reference Comment
Proton affinity (review)150.kcal/molN/AHunter and Lias, 1998at Si; HL
Proton affinity (review)163.kcal/molN/AHunter and Lias, 1998at S; HL
Quantity Value Units Method Reference Comment
Gas basicity142.6kcal/molN/AHunter and Lias, 1998at Si; HL
Gas basicity157.8kcal/molN/AHunter and Lias, 1998at S; HL

Ionization energy determinations

IE (eV) Method Reference Comment
10.53 ± 0.02PECockett, Dyke, et al., 1989LL

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 August, 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 28Si32S
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
E 1Sigma+ 41915.8 405.6 Z 1.60 -0.028 0.22137 1 0.00139 -0.000018   2.2591 E lrarrow X 2 R 41744.0 Z
missing citation; Barrow, Deutsch, et al., 1961; Bredohl, Cornet, et al., 1975
I 1Sigma- leq37462 3 geq404.9 1.18  geq0.2142 0.0018    leq2.297  
Nilheden, 1956
C 1Delta 37269 3 439.9 3.97  0.2269 0.0028    2.231  
Nilheden, 1956
e 3Sigma- leq35322 3 geq407.2 1.77  geq0.2230 0.0029    leq2.251  
Nilheden, 1956; Lagerqvist, Nilheden, et al., 1952
StateTeomegaeomegaexeomegaeyeBealphaegammaeDebetaereTrans.nu00
D 1Pi 35026.86 513.12 Z 2.93  0.26647 4 1 0.00216  2.91E-7 -0.03E-7 2.0591 D lrarrow X R 34908.51 Z
missing citation; missing citation; Nilheden, 1956
a 3Pi1 [30239.2] 5    [0.28180]     [2.0023] a rarrow X R 29865.0 Z
Bredohl, Cornet, et al., 1976
X 1Sigma+ 0 749.64 Z 2.577 0.00052 0.30352788 1 0.00147308 -8.6E-8 2.01E-7  1.929321 6 7  
Tiemann, Renwanz, et al., 1972; Tiemann, 1976

Notes

1RKR potential curves Nair, Singh, et al., 1965, 93.
2Bands in the near UV and visible region (3490-6170 ) first described by Barrow and Jevons, 1939 have been shown Bredohl, Cornet, et al., 1975 to be part of the ErarrowX system (1leqv'leq17, 20leqv"leq51). Franck-Condon factors Katti and Korwar, 1975.
3The constants for these states have been derived Nilheden, 1956 from perturbations in D 1Pi; the vibrational numbering is uncertain except for C 1Delta.
4Numerous perturbations due to interactions with e 3Sigma-, C 1Delta, and I 1Sigma-.
5Only v'=0 observed
6From studies of four different isotopes the equilibrium internuclear distance at the minimum of the Born-Oppenheimer potential curve can be derived: re(B0) = 1.929264 Tiemann, Renwanz, et al., 1972.
7Microwave sp. 9
8From a short extrapolation of the vibrational levels of the E state Robinson and Barrow, 1954 assuming dissociation into 3P2 + 3P2 Barrow, 1970.
9muel(v=0) = +1.73 D (+SiS-), see Murty and Curl, 1969, Hoeft, Lovas, et al., 1969, Tiemann, Renwanz, et al., 1972; gJ = -0.09097- 0.000296(v+1/2) Honerjager and Tischer, 1973; Si33S hyperfine structure Hoeft, Lovas, et al., 1969; adiabatic and non-adiabatic corrections Tiemann, Renwanz, et al., 1972.

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]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Cockett, Dyke, et al., 1989
Cockett, M.C.R.; Dyke, J.M.; Morris, A.; Niavaran, M.H.Z., High-temperature photoelectron spectroscopy A study of SiS(X +), J. Chem. Soc. Faraday Trans. 2, 1989, 85, 75. [all data]

Barrow, Deutsch, et al., 1961
Barrow, R.F.; Deutsch, J.L.; Lagerqvist, A.; Westerlund, B., Rotational analysis of the E-X system of silicon monosulphide, Proc. Phys. Soc. London, 1961, 78, 1307. [all data]

Bredohl, Cornet, et al., 1975
Bredohl, H.; Cornet, R.; Dubois, I.; Wilderia, D., Identification of a non-assigned electronic system of the SiS radical, J. Phys. B:, 1975, 8, 259. [all data]

Nilheden, 1956
Nilheden, G., The perturbations in the near ultra-violet band-system (D-X) of silicon monosulphide, Ark. Fys., 1956, 10, 19. [all data]

Lagerqvist, Nilheden, et al., 1952
Lagerqvist, A.; Nilheden, G.; Barrow, R.F., The near ultra-violet band-system (D-X) of silicon monosulphide, Proc. Phys. Soc. London Sect. A, 1952, 65, 419. [all data]

Bredohl, Cornet, et al., 1976
Bredohl, H.; Cornet, R.; Dubois, I., The a3«PI»r-X1«SIGMA»+ transition of SiS, J. Phys. B:, 1976, 9, 207. [all data]

Tiemann, Renwanz, et al., 1972
Tiemann, E.; Renwanz, E.; Hoeft, J.; Torring, T., Isotopieeffekte im Rotationsspektrum des SiS, Z. Naturforsch. A, 1972, 27, 1566. [all data]

Tiemann, 1976
Tiemann, E., Microwave spectra of molecules of astrophysical interest. XI. Silicon sulfide, J. Phys. Chem. Ref. Data, 1976, 5, 1147. [all data]

Nair, Singh, et al., 1965
Nair, K.P.R.; Singh, R.B.; Rai, D.K., Potential-energy curves and dissociation energies of oxides and sulfides of group IV A elements, J. Chem. Phys., 1965, 43, 3570. [all data]

Barrow and Jevons, 1939
Barrow, R.F.; Jevons, W., The band spectrum of silicon monosulphide and its relation to the band spectra of similar molecules, Proc. R. Soc. London A, 1939, 169, 45. [all data]

Katti and Korwar, 1975
Katti, P.H.; Korwar, V.M., R-K-R-V potential energy curve, Franck-Condon factors and r-centroids for E1«SIGMA»+-X1«SIGMA»+ system of SiS molecule, Acta Phys. Acad. Sci. Hung., 1975, 39, 145. [all data]

Robinson and Barrow, 1954
Robinson, S.J.Q.; Barrow, R.F., The E-X band system of SiS in emission and the dissociation energy of SiS, Proc. Phys. Soc. London Sect. A, 1954, 67, 95. [all data]

Barrow, 1970
Barrow, In Rosen, 1970, 1970, 323. [all data]

Murty and Curl, 1969
Murty, A.N.; Curl, R.F., Jr., Dipole moments of the sulfides of Pb, Sn, and Si from Stark effect measurements, J. Mol. Spectrosc., 1969, 30, 102. [all data]

Hoeft, Lovas, et al., 1969
Hoeft, J.; Lovas, F.J.; Tiemann, E.; Torring, T., Elektrisches Dipolmoment und Mikrowellenrotationsspektrum von SiS, Z. Naturforsch. A, 1969, 24, 1422. [all data]

Honerjager and Tischer, 1973
Honerjager, R.; Tischer, R., gJ-Faktor der Molekeln GeO und SiS und Anisotropie ihrer Magnetisierbarkeit, Z. Naturforsch. A, 1973, 28, 1374. [all data]

Rosen, 1970
Rosen, B., International tables of selected constants. 17. Spectroscopic data relative to diatomic molecules, Pub. Pergamon Press, Oxford, 1970, 0. [all data]


Notes

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