1,1'-Biphenyl, 4,4'-difluoro-
- Formula: C12H8F2
- Molecular weight: 190.1887
- IUPAC Standard InChI: InChI=1S/C12H8F2/c13-11-5-1-9(2-6-11)10-3-7-12(14)8-4-10/h1-8H
- IUPAC Standard InChIKey: PZDAAZQDQJGXSW-UHFFFAOYSA-N
- CAS Registry Number: 398-23-2
- 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: 4,4'-Difluorobiphenyl; Biphenyl, 4,4'-difluoro-; 4,4'-Difluorodiphenyl
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Options:
Data at NIST subscription sites:
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.
Gas phase thermochemistry data
Go To: Top, IR Spectrum, 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 | -49.1 ± 1.1 | kcal/mol | Ccr | Smith, Gorin, et al., 1964 | Corrected for CODATA value of ΔfH |
IR Spectrum
Go To: Top, Gas phase thermochemistry 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Phase Spectrum
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.
Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
View spectrum image in SVG format.
Download spectrum in JCAMP-DX format.
| Owner | SRD/NIST Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
|---|---|
| Origin | EPA-IR VAPOR PHASE LIBRARY |
| State | gas |
Gas Chromatography
Go To: Top, Gas phase thermochemistry data, IR Spectrum, 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: 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 | 1356. | 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 | 1360. | 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 | 233.78 | 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 | 234.08 | 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 | 233.87 | 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, IR Spectrum, 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]
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
Go To: Top, Gas phase thermochemistry data, IR Spectrum, Gas Chromatography, References
- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas 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.