Biphenylene

Formula: C₁₂H₈
Molecular weight: 152.1919
IUPAC Standard InChI: InChI=1S/C12H8/c1-2-6-10-9(5-1)11-7-3-4-8-12(10)11/h1-8H
IUPAC Standard InChIKey: IFVTZJHWGZSXFD-UHFFFAOYSA-N
CAS Registry Number: 259-79-0
Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5)
Other names: Cyclobutadibenzene; Diphenylene; 1,1'-Biphenylene; Dibenzocyclobutadiene
Permanent link for this species. Use this link for bookmarking this species for future reference.
Information on this page:
Other data available:
Data at other public NIST sites:
- Gas Phase Kinetics Database
- NIST Polycyclic Aromatic Hydrocarbon Structure Index
Options:
- Switch to calorie-based units

Data at NIST subscription sites:

NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

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.

Enthalpy of sublimation at standard conditions (nominally 298.15 K, 1 atm.)

Go To: Top, References, Notes

Data compiled as indicated in comments:
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Δ_subH° (kJ/mol)	Method	Reference	Comment
83.8 ± 0.6	Review	Roux, Temprado, et al., 2008	There are sufficient literature values to make a qualified recommendation where the suggested value is in good agreement with values predicted using thermochemical cycles or from reliable estimates. In general, the evaluated uncertainty limits are on the order of (2 to 4) kJ/mol.; DRB
87.3 ± 0.3	B	Osborn and Scott, 1980	AC
87.0 ± 0.8	V	Douslin, Scott, et al., 1976	crystal phase; see Good, 1978; ALS
87.0	N/A	Douslin, Scott, et al., 1976	DRB
83.8 ± 0.3	V	Morawetz, 1972	ALS
129.	V	Cass, Springall, et al., 1955	ALS

References

Go To: Top, Enthalpy of sublimation at standard conditions (nominally 298.15 K, 1 atm.), Notes

Roux, Temprado, et al., 2008
Roux, M.V.; Temprado, M.; Chickos, J.S.; Nagano, Y., Critically Evaluated Thermochemical Properties of Polycyclic Aromatic Hydrocarbons, J. Phys. Chem. Ref. Data, 2008, 37, 4, 1855-1996. [all data]

Osborn and Scott, 1980
Osborn, A.G.; Scott, D.W., Vapor pressures of 17 miscellanenous organic compounds, J. Chem. Thermodyn., 1980, 12, 429-438. [all data]

Douslin, Scott, et al., 1976
Douslin, D.R.; Scott, D.W.; Good, W.D.; Osborn, A.G., Thermodynamic properties of organic compounds and thermodynamic properties of fluids, Gov. Rep. Announce. Index U.S., 1976, 76, 97. [all data]

Good, 1978
Good, W.D., The enthalpies of formation of some bridged-ring polynuclear aromatic hydrocarbons, J. Chem. Thermodyn., 1978, 10, 553-558. [all data]

Morawetz, 1972
Morawetz, E., Enthalpies of vaporization for a number of aromatic compounds, J. Chem. Thermodyn., 1972, 4, 455. [all data]

Cass, Springall, et al., 1955
Cass, R.C.; Springall, H.D.; Quincey, P.G., Heats of combustion and molecular structure. Part III. Diphenylene, J. Chem. Soc., 1955, 1188-1190. [all data]

Notes

Go To: Top, Enthalpy of sublimation at standard conditions (nominally 298.15 K, 1 atm.), References

Symbols used in this document:

Δ_subH° Enthalpy of sublimation at standard conditions
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
Customer support for NIST Standard Reference Data products.