[2.2]Paracyclophane

• Formula: C₁₆H₁₆
• Molecular weight: 208.2982
• IUPAC Standard InChI: InChI=1S/C16H16/c1-2-14-4-3-13(1)9-10-15-5-7-16(8-6-15)12-11-14/h1-8H,9-12H2 Copy

  
• IUPAC Standard InChIKey: OOLUVSIJOMLOCB-UHFFFAOYSA-N Copy
• CAS Registry Number: 1633-22-3
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: Tricyclo[8.2.2.2(4,7)]hexadeca-4,6,10,12,13,15-hexaene; Cyclobis(benzene-1,4-dimethylene); Di-p-xylylene; Di-1,4-xylylene; tricyclo[8.2.2.24,7]hexadeca-1(12),4,6,10,13,15-hexaene
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• Information on this page:
  • Condensed phase thermochemistry data
  • IR Spectrum
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of solid

IR Spectrum

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Gas Phase Spectrum

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Additional Data

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.

Nishiyama, Sakiyama, et al., 1980
Nishiyama, K.; Sakiyama, N.; Seki, S.; Horita, H.; Otsubo, T.; Misumi, S., Thermochemical studies on double- and triple-layered [2.2]paracyclophanes. Estimation of molecular strain energies., Bull. Chem. Soc. Jpn., 1980, 53, 869-877. [all data]

Rodgers, Westrum, et al., 1973
Rodgers, D.L.; Westrum, E.F., Jr.; Andrews, J.T.S., The enthalpies of combustion and formation of [2.2]-paracyclophane and triptycene, J. Chem. Thermodyn., 1973, 5, 733-739. [all data]

Boyd, 1966
Boyd, R.H., The heat of combustion and strain energy of 2,2-paracyclophane, Tetrahedron, 1966, 22, 119-122. [all data]

Andrews and Westrum, 1970
Andrews, J.T.S.; Westrum, E.F., Jr., The heat capacity and thermodynamic functions of crystalline and liquid triptycene, J. Chem. Thermodynam., 1970, 2, 245-253. [all data]

Shieh, McNally, et al., 1969
Shieh, C.; McNally, D.; Boyd, R.H., The heats of combustion and strain energies of some cyclophanes, Tetrahedron, 1969, 3653-3665. [all data]

Notes

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• Symbols used in this document:
  

  Cp,solid	Constant pressure heat capacity of solid
  S°solid,1 bar	Entropy of solid at standard conditions (1 bar)
  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions

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