Methane, tetrakis(methylthio)-

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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.

Data compiled by: Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
146.4307.Backer and Perdok, 1943crystaline, II phase; Mean value 23.2 to 45.5°C. Value for c,III at 23.2°C = 133.9 J/mol*K; c,I, between 45.5 and 65.5°C = 197.5 J/mol*K; liquid at 65.5°C = 216.7 J/mol*K.

Phase change 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tfus338.7KN/ABacker and Perdok, 1943, 2Crystal phase 1 phase; Uncertainty assigned by TRC = 0.1 K; TRC

Enthalpy of fusion

ΔfusH (kJ/mol) Temperature (K) Method Reference Comment
3.31338.9ACSorai, Kimura, et al., 1998Based on data from 13. - 360. K.; AC
4.14338.7N/ADomalski and Hearing, 1996AC

Enthalpy of phase transition

ΔHtrs (kJ/mol) Temperature (K) Initial Phase Final Phase Reference Comment
6.110296.4crystaline, IIIcrystaline, IIBacker and Perdok, 1943DH
7.610318.7crystaline, IIcrystaline, IBacker and Perdok, 1943DH
4.140338.7crystaline, IliquidBacker and Perdok, 1943DH

Entropy of phase transition

ΔStrs (J/mol*K) Temperature (K) Initial Phase Final Phase Reference Comment
20.6296.4crystaline, IIIcrystaline, IIBacker and Perdok, 1943DH
23.9318.7crystaline, IIcrystaline, IBacker and Perdok, 1943DH
12.2338.7crystaline, IliquidBacker and Perdok, 1943DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


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.

Backer and Perdok, 1943
Backer, H.J.; Perdok, W.G., Transformations, "ordre-desordre" dans les reseaux cristallins de molecules organiques. 1. Properties physiques des molecules du type CX4, specialement de C(SCH3)4, Rec. Trav. Chim., 1943, 62, 533-549. [all data]

Backer and Perdok, 1943, 2
Backer, H.J.; Perdok, W.G., order-disorder transformation of netting organic molecules. 1. Physical properties of type CX4, specially C(SCH)4, Rec. Trav. Chim., 1943, 62, 533. [all data]

Sorai, Kimura, et al., 1998
Sorai, Michio; Kimura, Keisuke; Weiss, Alarich; Strauss, Roman, Heat capacity and phase transitions of the orientationally disordered crystal C(SCH3)4, The Journal of Chemical Thermodynamics, 1998, 30, 12, 1441-1453, https://doi.org/10.1006/jcht.1998.0442 . [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]


Notes

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