Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

2,4,6,8-Tetrathiatricyclo[3.3.1.1(3,7)]decane, 1,3,5,7-tetramethyl-

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.


Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltafgas-8.8 ± 1.2kcal/molCcrHeath, Hefter, et al., 1978hf_H2SO4.115H2O=-143.95 kcal/mol

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafsolid-36.8 ± 0.7kcal/molCcrHeath, Hefter, et al., 1978hf_H2SO4.115H2O=-143.95 kcal/mol; ALS
Quantity Value Units Method Reference Comment
Deltacsolid-2026.1 ± 0.6kcal/molCcrHeath, Hefter, et al., 1978hf_H2SO4.115H2O=-143.95 kcal/mol; ALS
Quantity Value Units Method Reference Comment
solid,1 bar71.900cal/mol*KN/AChang and Westrum, 1962DH

Constant pressure heat capacity of solid

Cp,solid (cal/mol*K) Temperature (K) Reference Comment
70.710298.15Chang and Westrum, 1962T = 5 to 350 K.; DH

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Mass spectrum (electron ionization), 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Deltasub28.0 ± 1.0kcal/molVHeath, Hefter, et al., 1978hf_H2SO4.115H2O=-143.95 kcal/mol; ALS
Deltasub27.96kcal/molN/AHeath, Hefter, et al., 1978DRB
Deltasub27.99 ± 0.98kcal/molTEHeath, Hefter, et al., 1978AC

Mass spectrum (electron ionization)

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change 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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

Mass spectrum
For Zoom
1.) Enter the desired X axis range (e.g., 100, 200)
2.) Check here for automatic Y scaling
3.) Press here to zoom

Additional Data

View image of digitized spectrum (can be printed in landscape orientation).

View spectrum image in SVG format.

Download spectrum in JCAMP-DX format.

Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin R RYHAGE MS-LAB KAROLINSKA INSTITUTET STOCKHOLM SWEDEN
NIST MS number 42557

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Heath, Hefter, et al., 1978
Heath, G.A.; Hefter, G.T.; Steele, W.V., The standard enthalpy of formation of 1,3,5,7-tetramethyl-2,4,6,8-tetrathiaadamatane, J. Chem. Thermodyn., 1978, 10, 395-401. [all data]

Chang and Westrum, 1962
Chang, S.-S.; Westrum, E.F., Jr., Heat capacities and thermodynamic properties of globular molecules. III. Two methyl-substituted polythiaadamantanes, Ber. Bunsenges. Phys. Chem., 1962, 66, 524-527. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), References