Trisiloxane, octamethyl-

• Formula: C₈H₂₄O₂Si₃
• Molecular weight: 236.5315
• IUPAC Standard InChI: InChI=1S/C8H24O2Si3/c1-11(2,3)9-13(7,8)10-12(4,5)6/h1-8H3 Copy

  
• IUPAC Standard InChIKey: CXQXSVUQTKDNFP-UHFFFAOYSA-N Copy
• CAS Registry Number: 107-51-7
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: Octamethyltrisiloxane; Silane, dimethylbis(trimethylsiloxy)-; 1,1,1,3,3,5,5,5-Octamethyltrisiloxane; [(CH3)3SiO]2Si(CH3)2; Dimethylbis(trimethylsiloxy)silane; CO9816; O9816
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• Information on this page:
  • Phase change data
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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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 by: William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

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

Ionization energy determinations

Appearance energy determinations

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.

Flaningam, 1986
Flaningam, Ora L., Vapor pressures of poly(dimethylsiloxane) oligomers, J. Chem. Eng. Data, 1986, 31, 3, 266-272, https://doi.org/10.1021/je00045a002 . [all data]

Skorokhodov, Ditsent, et al., 1971
Skorokhodov, I.I.; Ditsent, V.E.; Teret'eva, N.A.; Zolotarev, M.N., Russ. J. Phys. Chem., 1971, 45, 6, 902. [all data]

Ermakov, Kirichenko, et al., 1982
Ermakov, A.I.; Kirichenko, E.A.; Pimkin, N.I.; Chizhov, Y.V.; Kleimenov, V.I., Photoelectronic spectra and electronic structure of organotri- and organotetrasiloxanes of linear and cyclic structure, Zh. Strukt. Khim., 1982, 23, 61. [all data]

Borossay, Csakvari, et al., 1971
Borossay, J.; Csakvari, B.; Szepes, L., Determination of bond energies of organic silicon compounds on the basis of appearance potentials, Int. J. Mass Spectrom. Ion Phys., 1971, 7, 47. [all data]

Notes

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• Symbols used in this document:
  

  AE	Appearance energy
  ΔvapH	Enthalpy of vaporization

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