1,1,10,10-Tetramethylcyclooctadecane

• Formula: C₂₂H₄₄
• Molecular weight: 308.5848
• IUPAC Standard InChI: InChI=1S/C22H44/c1-21(2)17-13-9-5-7-11-15-19-22(3,4)20-16-12-8-6-10-14-18-21/h5-20H2,1-4H3 Copy

  
• IUPAC Standard InChIKey: HEYYLLOULCSVBY-UHFFFAOYSA-N Copy
• CAS Registry Number: 23014-56-4
• Chemical structure:
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• Information on this page:
  • Phase change data
  • References
  • Notes
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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
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of fusion

Entropy of fusion

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.

Björnstad, Borgen, et al., 1974
Björnstad, S.L.; Borgen, G.; Gaupset, G., Syntheses and Conformations of gem-Dimethyl Substituted Cyclo-octadecanes. The 1,1-Dimethyl and the 1,1,4,4-Tetramethyl Derivatives., Acta Chem. Scand., 1974, 28b, 821, https://doi.org/10.3891/acta.chem.scand.28b-0821 . [all data]

Borgen and Dale, 1969
Borgen, G.; Dale, J., gem-Dimethyl substituted cyclooctadecanes, conformational homogeneity of the 1,1,4,4,10,10,13,13-octamethyl derivative, J. Chem. Soc., 1969, 1969, 447-8. [all data]

Borgen and Dale, 1969, 2
Borgen, G.; Dale, J., gem-Dimethyl substituted cyclooctadecanes, conformational homogeneity of the 1,1,4,4,10,10,13,13-octamethyl derivative, J. Chem. Soc., 1969, D, Chem. [all data]

Björnstad, Borgen, et al., 1974, 2
Björnstad, S.L.; Borgen, G.; Gaupset, G.; Szabo-Lin, Ilona; Guthenberg, Claes; Mannervik, Bengt, Syntheses and Conformations of gem-Dimethyl Substituted Cyclo-octadecanes. The 1,1-Dimethyl and the 1,1,4,4-Tetramethyl Derivatives., Acta Chem. Scand., 1974, 28b, 821-822, https://doi.org/10.3891/acta.chem.scand.28b-0821 . [all data]

Notes

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• Symbols used in this document:
  

  Tfus	Fusion (melting) point
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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