1,1'-Biphenyl, 2-methyl-
- Formula: C13H12
- Molecular weight: 168.2344
- IUPAC Standard InChIKey: ALLIZEAXNXSFGD-UHFFFAOYSA-N
- CAS Registry Number: 643-58-3
- 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: Biphenyl, 2-methyl-; o-Methylbiphenyl; 2-Methyl-1,1'-biphenyl; 2-Methylbiphenyl; 2-Phenyltoluene; o-Phenyltoluene; 1-Methyl-2-phenylbenzene; 2-Methyldiphenyl
- 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:
- 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, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 152.8 ± 1.5 | kJ/mol | Ccb | Steele, Chirico, et al., 1995 |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | 86.5 ± 1.3 | kJ/mol | Ccb | Steele, Chirico, et al., 1995 | |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -6917.1 ± 1.2 | kJ/mol | Ccb | Steele, Chirico, et al., 1995 | Corresponding ΔfHºliquid = 86.5 kJ/mol (simple calculation by NIST; no Washburn corrections) |
ΔcH°liquid | -6950.9 | kJ/mol | Ccb | Wise, Serijan, et al., 1951 | Corresponding ΔfHºliquid = 120. kJ/mol (simple calculation by NIST; no Washburn corrections) |
ΔcH°liquid | -6694. | kJ/mol | Ccb | Goodman and Wise, 1950 | Corresponding ΔfHºliquid = -140. kJ/mol (simple calculation by NIST; no Washburn corrections) |
ΔcH°liquid | -6938.7 ± 7.1 | kJ/mol | Ccb | Brull, 1935 | Reanalyzed by Cox and Pilcher, 1970, Original value = -6937.57 kJ/mol; Corresponding ΔfHºliquid = 108.2 kJ/mol (simple calculation by NIST; no Washburn corrections) |
Phase change data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible 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 as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 532. ± 7. | K | AVG | N/A | Average of 12 values; Individual data points |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 272.95 | K | N/A | Goodman and Wise, 1951 | Uncertainty assigned by TRC = 0.15 K; TRC |
Tfus | 418. | K | N/A | Cook, Dickson, et al., 1950 | TRC |
Tfus | 272.95 | K | N/A | Goodman and Wise, 1950, 2 | Uncertainty assigned by TRC = 0.1 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 66.3 ± 0.5 | kJ/mol | V | Steele, Chirico, et al., 1995 | ALS |
ΔvapH° | 66.3 | kJ/mol | N/A | Steele, Chirico, et al., 1995 | DRB |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 815.9 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 783.4 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.10 ± 0.02 | PE | Maier and Turner, 1972 | LLK |
IR Spectrum
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible 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
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 | NIST Standard Reference Data Program Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | NIST Mass Spectrometry Data Center |
State | gas |
Instrument | HP-GC/MS/IRD |
Mass spectrum (electron ionization)
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, UV/Visible 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
Spectrum
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
NIST MS number | 6409 |
UV/Visible spectrum
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), 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: Victor Talrose, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina
Spectrum
Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.
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.
Source | Friedel, Orchin, et al., 1948 |
---|---|
Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 660 |
Instrument | Beckman spectrophotometer |
Melting point | -0.2 |
Boiling point | 255.5 |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Steele, Chirico, et al., 1995
Steele, W.V.; Chirico, R.D.; Smith, N.K.,
The standard enthalpies of formation of 2-methylbiphenyl and diphenylmethane,
J. Chem. Thermodyn., 1995, 27, 671-678. [all data]
Wise, Serijan, et al., 1951
Wise, C.H.; Serijan, K.T.; Goodman, I.A.,
NACA Technical Report 1003,
NACA Technical Report 1003, 1951, 1-10. [all data]
Goodman and Wise, 1950
Goodman, I.A.; Wise, P.H.,
Dicyclic hydrocarbons. I. 2-Aklylbiphenyls,
J. Am. Chem. Soc., 1950, 72, 3076-3078. [all data]
Brull, 1935
Brull, L.,
Sui calori di combustione di alcuni derivati del bifenil,
Gazz. Chim. Ital., 1935, 65, 19-28. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Goodman and Wise, 1951
Goodman, I.A.; Wise, P.H.,
Synthesis & purification of some alkylbiphenyls & alkylbicyclohexyls., Natl. Advis. Comm. Aeronaut., Tech. Note NACA TN 2260, Lewis Flight Propulsion Lab., Cleveland, Ohio, 1951. [all data]
Cook, Dickson, et al., 1950
Cook, J.W.; Dickson, G.T.; Jack, J.; Loudon, J.D.; McKeown, J.; MacMillan, J.; Williamson, W.F.,
Colchicine and Related Compounds,
J. Chem. Soc., 1950, 139. [all data]
Goodman and Wise, 1950, 2
Goodman, I.A.; Wise, P.H.,
Dicycloic Hydrocarbons I. 2-Alkylbiphenyls,
J. Am. Chem. Soc., 1950, 72, 3076. [all data]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Maier and Turner, 1972
Maier, J.P.; Turner, D.W.,
Steric inhibition of resonance studied by molecular photoelectron spectroscopy. Part I. Biphenyls,
Faraday Discuss. Chem. Soc., 1972, 54, 149. [all data]
Friedel, Orchin, et al., 1948
Friedel, R.A.; Orchin, M.; Reggel, L.,
Steric hindrance and short wave length bands in the ultraviolet spectra of some naphthalene and diphenyl derivatives,
J. Am. Chem. Soc., 1948, 70, 199-204. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔvapH° Enthalpy of vaporization 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.