2,2,4,4-tetramethyl-6,6,8,8-tetraphenylcyclotetrasiloxane

• Formula: C₂₈H₃₂O₄Si₄
• Molecular weight: 544.8933
• IUPAC Standard InChI: InChI=1S/C28H32O4Si4/c1-33(2)29-34(3,4)31-36(27-21-13-7-14-22-27,28-23-15-8-16-24-28)32-35(30-33,25-17-9-5-10-18-25)26-19-11-6-12-20-26/h5-24H,1-4H3 Copy

  
• IUPAC Standard InChIKey: SOPXVWFVFREYPL-UHFFFAOYSA-N Copy
• CAS Registry Number: 1693-47-6
• Chemical structure:
  This structure is also available as a 2d Mol file
• Species with the same structure:
  • 2,2,4,4-tetramethyl-6,6,8,8-tetraphenyl-[1,3,5,7,2,4,6,8]cyclotetrasiloxane
• Other names: 1,1,3,3-Tetramethyl-5,5,7,7-tetraphenylcyclotetrasiloxane
• Information on this page:
  • Phase change data
  • References
  • Notes
• Options:
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• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

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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
AC - William E. Acree, Jr., James S. Chickos

Enthalpy 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.

Kuliev, Dzhafarov, et al., 1976
Kuliev, A.M.; Dzhafarov, O.I.; Karasharli, K.A.; Kuznetsova, A.G., The true heat capacity of 1,1,3,3-tetramethyl-5,5,7,7-tetraphenylcyclotetrasiloxane in the range 12-370K, Zhur. Fiz. Khim., 1976, 50, 1903. [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

Go To: Top, Phase change data, References

• Symbols used in this document:
  

  Ttriple	Triple point temperature
  ΔfusH	Enthalpy of fusion

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