Cyclic octaatomic sulfur


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
gas,1 bar430.23J/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 (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. to 6000.
A 180.6697
B 1.918988
C -0.520130
D 0.044394
E -2.270155
F -61.56045
G 635.5496
H 0.000000
ReferenceChase, 1998
Comment Data last reviewed in September, 1977

Gas phase ion energetics 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.

Data compiled as indicated in comments:
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
B - John E. Bartmess

Electron affinity determinations

EA (eV) Method Reference Comment
3.590 ± 0.050LPDHunsicker, Jones, et al., 1995Vertical Detachment Energy: 3.87 eV.; B

Ionization energy determinations

IE (eV) Method Reference Comment
9.3 ± 0.2EIRosinger, Grade, et al., 1983LBLHLM
9.04 ± 0.03PIBerkowitz and Lifshitz, 1968RDSH
9.6 ± 0.2EIBerkowitz and Chupka, 1964RDSH
7.3 ± 0.3EIHagemann, 1962RDSH
9.40PERichardson and Weinberger, 1975Vertical value; LLK
9.23PEBoschi and Schmidt, 1973Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
S3+12.6 ± 0.5?EIBerkowitz and Chupka, 1964RDSH
S4+12.5 ± 0.3?EIBerkowitz and Chupka, 1964RDSH
S5+10.2S3PIBerkowitz and Lifshitz, 1968RDSH
S6+≤11.0S2PIBerkowitz and Lifshitz, 1968RDSH
S6+10.1 ± 0.3S2EIBerkowitz and Chupka, 1964RDSH

Gas Chromatography

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Van Den Dool and Kratz RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryHP-5MS2083.2Andriamaharavo, 201430. m/0.25 mm/0.25 μm, He; Program: 60C (1 min) => 5 C/min => 210C => 10 C/min => 280C (15 min)

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryHP-5 MS1998.Kotowska, Zalikowski, et al., 201230. m/0.25 mm/0.25 μm, Helium, 35. C @ 5. min, 3. K/min, 300. C @ 15. min

Normal alkane RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryHP-5 MS2004.Kotowska, Zalikowski, et al., 201230. m/0.25 mm/0.25 μm, Helium; Program: not specified
CapillaryRTX-5 MS2055.Nadaf, Halimi, et al., 201215. m/0.25 mm/0.25 μm, Helium; Program: 35 0C (6 min) 5 0C/min -> 150 0C 10 0C/min -> 280 0C (3 min)

Lee's RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryMethyl Silicone342.96Eckel, Ross, et al., 1993Program: not specified

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]

Hunsicker, Jones, et al., 1995
Hunsicker, S.; Jones, R.O.; Gantefor, G., Rings and chains in sulfur cluster anions S- to S-9(-): Theory (simulated annealing) and experiment (photoelectron detachment), J. Chem. Phys., 1995, 102, 15, 5917, https://doi.org/10.1063/1.469326 . [all data]

Rosinger, Grade, et al., 1983
Rosinger, W.; Grade, M.; Hirschwald, W., Detection of ion states of S2 to S8 by electron impact, Int. J. Mass Spectrom. Ion Processes, 1983, 47, 239. [all data]

Berkowitz and Lifshitz, 1968
Berkowitz, J.; Lifshitz, C., Photoionization of high temperature vapors. II. Sulfur molecular species, J. Chem. Phys., 1968, 48, 4346. [all data]

Berkowitz and Chupka, 1964
Berkowitz, J.; Chupka, W.A., Vaporization processes involving sulfur, J. Chem. Phys., 1964, 40, 287. [all data]

Hagemann, 1962
Hagemann, R., Determination de la chaleur de formation de S2O par spectrometrie de masse, Compt. Rend., 1962, 255, 1102. [all data]

Richardson and Weinberger, 1975
Richardson, N.V.; Weinberger, P., The electronic structure of the S8 molecule, J. Electron Spectrosc. Relat. Phenom., 1975, 6, 109. [all data]

Boschi and Schmidt, 1973
Boschi, R.; Schmidt, W., The photoelectron spectrum and structure of sulfur in the gas phase at 140 C, Inorg. Nucl. Chem. Lett., 1973, 9, 643. [all data]

Andriamaharavo, 2014
Andriamaharavo, N.R., Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2014. [all data]

Kotowska, Zalikowski, et al., 2012
Kotowska, U.; Zalikowski, M.; Isidorov, V.A., HS-SPME/GC-MS analysis of volatile and semi-volatile organic compounds emitted from municipal sewage sludge, Environ. Monit. Asses., 2012, 184, 5, 2893-2907, https://doi.org/10.1007/s10661-011-2158-8 . [all data]

Nadaf, Halimi, et al., 2012
Nadaf, M.; Halimi, M.; Mortazavi, M., Identification of nonpolar chemical composition Spartium junceum flower growing in Iran by GC-MS, Middle-East J. Sci. Res., 2012, 11, 2, 221-224. [all data]

Eckel, Ross, et al., 1993
Eckel, W.P.; Ross, B.; Isensee, R.K., Pentobarbital found in ground water, Ground Water, 1993, 31, 5, 801-804, https://doi.org/10.1111/j.1745-6584.1993.tb00853.x . [all data]


Notes

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