2,2'-Difluorobiphenyl
- Formula: C12H8F2
- Molecular weight: 190.1887
- IUPAC Standard InChIKey: PXFIPIAXFGAEMJ-UHFFFAOYSA-N
- CAS Registry Number: 388-82-9
- 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: 1,1'-Biphenyl, 2,2'-difluoro-; 2,2'-Difluorodiphenyl; Biphenyl, 2,2'-difluoro; 2,2'-difluoro-1,1'-biphenyl
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -48.0 ± 1.1 | kcal/mol | Ccr | Smith, Gorin, et al., 1964 | Corrected for CODATA value of ΔfH |
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 by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°solid | -70.69 ± 0.51 | kcal/mol | Ccr | Smith, Gorin, et al., 1964 | Corrected for CODATA value of ΔfH |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°solid | -1416.79 ± 0.15 | kcal/mol | Ccr | Smith, Gorin, et al., 1964 | Corrected for CODATA value of ΔfH |
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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔsubH° | 22.7 ± 1.0 | kcal/mol | V | Smith, Gorin, et al., 1964 | Corrected for CODATA value of ΔfH; ALS |
ΔsubH° | 23. ± 1.0 | kcal/mol | ME | Smith, Gorin, et al., 1964 | Based on data from 301. to 318. K. See also Cox and Pilcher, 1970.; AC |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
22.7 | 310. | Stephenson and Malanowski, 1987 | Based on data from 301. to 319. K. See also Smith, Gorin, et al., 1964.; AC |
Gas Chromatography
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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
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | PB-1 | 1330. | Andersson and Weis, 1994 | 50. m/0.32 mm/0.2 μm, H2, 80. C @ 2. min, 4. K/min, 270. C @ 5. min |
Capillary | DB-5 | 1333. | Andersson and Weis, 1994 | 30. m/0.32 mm/0.25 μm, H2, 80. C @ 2. min, 4. K/min, 270. C @ 5. min |
Lee's RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | PB-1 | 229.19 | Andersson and Weis, 1994 | 50. m/0.32 mm/0.2 μm, H2, 80. C @ 2. min, 4. K/min, 270. C @ 5. min |
Capillary | DB-5 | 229.47 | Andersson and Weis, 1994 | 30. m/0.32 mm/0.25 μm, H2, 80. C @ 2. min, 4. K/min, 270. C @ 5. min |
Lee's RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-Wax | 226.78 | Andersson and Weis, 1994 | 30. m/0.2 mm/0.15 μm, H2, 80. C @ 2. min, 4. K/min, 270. C @ 5. min |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Smith, Gorin, et al., 1964
Smith, N.K.; Gorin, G.; Good, W.D.; McCullough, J.P.,
The heats of combustion, sublimation, and formation of four dihalobiphenyls,
J. Phys. Chem., 1964, 68, 940-946. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press Inc., London, 1970, 643. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Andersson and Weis, 1994
Andersson, J.T.; Weis, U.,
Gas Chromatographic Determination of Polycyclic Aromatic Compounds with Fluorinated Analogues as Internal Standards,
J. Chromatogr. A, 1994, 659, 1, 151-161, https://doi.org/10.1016/0021-9673(94)85017-8
. [all data]
Notes
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- Symbols used in this document:
ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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