Biphenyl
- Formula: C12H10
- Molecular weight: 154.2078
- IUPAC Standard InChIKey: ZUOUZKKEUPVFJK-UHFFFAOYSA-N
- CAS Registry Number: 92-52-4
- 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. - Isotopologues:
- Other names: 1,1'-Biphenyl; Bibenzene; Diphenyl; Phenylbenzene; 1,1'-Diphenyl; Lemonene; Phenador-X; PhPh; Xenene; Carolid AL; Tetrosin LY; NSC 14916; 1,1-Biphenyl
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Gas phase ion energetics data
Go To: Top, 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
L - Sharon G. Lias
Data compiled as indicated in comments:
MM - Michael M. Meot-Ner (Mautner)
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess
View reactions leading to C12H10+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 8.16 ± 0.13 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 194.5 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 187.1 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
<0.130 ± 0.035 | ECD | Wojnarovits and Foldiak, 1981 | EA is an upper limit: Chen and Wentworth, 1989. G3MP2B3 calculations indicate an EA of ca. -0.02 eV, anion unbound.; B |
Proton affinity at 298K
Proton affinity (kcal/mol) | Reference | Comment |
---|---|---|
193.3 | Aue, Guidoni, et al., 2000 | Experimental literature data re-evaluated by the authors using ab initio protonation entropies; MM |
Gas basicity at 298K
Gas basicity (review) (kcal/mol) | Reference | Comment |
---|---|---|
186.6 | Aue, Guidoni, et al., 2000 | Experimental literature data re-evaluated by the authors using ab initio protonation entropies; MM |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.80 ± 0.05 | EI | Loudon and Mazengo, 1974 | LLK |
8.9 | EI | Koppel, Schwarz, et al., 1974 | LLK |
7.95 ± 0.02 | PE | Maier and Turner, 1972 | LLK |
8.23 ± 0.01 | PE | Dewar, Haselbach, et al., 1970 | RDSH |
8.20 ± 0.05 | PE | Eland and Danby, 1968 | RDSH |
8.46 | CTS | Slifkin and Allison, 1967 | RDSH |
8.22 ± 0.15 | EI | Eland, Shepherd, et al., 1966 | RDSH |
8.27 ± 0.01 | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
8.64 | CTS | Kinoshita, 1962 | RDSH |
8.35 | CTS | Briegleb, Czekalla, et al., 1961 | RDSH |
8.4 | CTS | Briegleb and Czekalla, 1959 | RDSH |
8.39 | PE | Akiyama, Li, et al., 1979 | Vertical value; LLK |
8.34 | PE | Ruscic, Kovac, et al., 1978 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C6H4+ | 18.1 ± 0.3 | ? | EI | Natalis and Franklin, 1965 | RDSH |
C6H5+ | 18.2 ± 0.5 | ? | EI | Natalis and Franklin, 1965 | RDSH |
C7H5+ | 20.9 ± 0.2 | ? | EI | Natalis and Franklin, 1965 | RDSH |
C8H6+ | 18.10 ± 0.05 | ? | EI | Natalis and Franklin, 1965 | RDSH |
C9H7+ | 16.08 ± 0.05 | ? | EI | Natalis and Franklin, 1965 | RDSH |
C10H8+ | 14.81 ± 0.05 | ? | EI | Natalis and Franklin, 1965 | RDSH |
C11H7+ | 14.8 ± 0.2 | CH3 | EI | Loudon and Mazengo, 1974 | LLK |
C12H8+ | 16.89 ± 0.08 | ? | EI | Natalis and Franklin, 1965 | RDSH |
C12H9+ | 13.6 ± 0.2 | H | EI | Loudon and Mazengo, 1974 | LLK |
C12H9+ | 14.36 | H | EI | Natalis and Franklin, 1965 | RDSH |
C12H82+ | 22.0 ± 1.0 | ? | EI | Natalis and Franklin, 1965 | RDSH |
References
Go To: Top, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Wojnarovits and Foldiak, 1981
Wojnarovits, L.; Foldiak, G.,
Electron capture detection of aromatic hydrocarbons,
J. Chromatogr. Sci., 1981, 206, 511. [all data]
Chen and Wentworth, 1989
Chen, E.C.M.; Wentworth, W.E.,
Experimental Determination of Electron Affinities of Organic Molecules,
Mol. Cryst. Liq. Cryst., 1989, 171, 271. [all data]
Aue, Guidoni, et al., 2000
Aue, D.H.; Guidoni, M.; Betowski, L.D.,
Ab initio calculated gas-phase basicities of polynuclear aromatic hydrocarbons,
Int. J. Mass Spectrom., 2000, 201, 283. [all data]
Loudon and Mazengo, 1974
Loudon, A.G.; Mazengo, R.Z.,
Steric strain and electron-impact. The behaviour of some n, n'-dimethyl- 1,1-binaphthyls, some n, n'-dimethylbiphenyls and model compounds,
Org. Mass Spectrom., 1974, 8, 179. [all data]
Koppel, Schwarz, et al., 1974
Koppel, C.; Schwarz, H.; Bohlmann, F.,
Elektronenstossinduzierte fragmentierung von acetylenverbindungen,
Org. Mass Spectrom., 1974, 9, 324. [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]
Dewar, Haselbach, et al., 1970
Dewar, M.J.S.; Haselbach, E.; Worley, S.D.,
Calculated and observed ionization potentials of unsaturated polycyclic hydrocarbons; calculated heats of formation by several semiempirical s.c.f. m.o. methods,
Proc. Roy. Soc. (London), 1970, A315, 431. [all data]
Eland and Danby, 1968
Eland, J.H.D.; Danby, C.J.,
Inner ionization potentials of aromatic compounds,
Z. Naturforsch., 1968, 23a, 355. [all data]
Slifkin and Allison, 1967
Slifkin, M.A.; Allison, A.C.,
Measurement of ionization potentials from contact charge transfer spectra,
Nature, 1967, 215, 949. [all data]
Eland, Shepherd, et al., 1966
Eland, J.H.D.; Shepherd, P.J.; Danby, C.J.,
Ionization potentials of aromatic molecules determined by analytical interpretation of electron impact data,
Z. Naturforsch., 1966, 21a, 1580. [all data]
Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J.,
Ionization potentials of some molecules,
J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]
Kinoshita, 1962
Kinoshita, M.,
The absorption spectra of the molecular complexes of aromatic compounds with p-bromanil,
Bull. Chem. Soc. Japan, 1962, 35, 1609. [all data]
Briegleb, Czekalla, et al., 1961
Briegleb, G.; Czekalla, J.; Reuss, G.,
Mesomeriemomente und Elektronenuberfuhrungsbanden von Elektronen-donator-akzeptor-komplexen des Chloranils und Tetracyanathylens mit aromatischen Kohlenwasserstoffen,
Z. Phys. Chem. (Neue Folge), 1961, 30, 333. [all data]
Briegleb and Czekalla, 1959
Briegleb, G.; Czekalla, J.,
Die Bestimmung von lonisierungsenergien aus den Spektren von Elektronenubergangskomplexen,
Z.Elektrochem., 1959, 63, 6. [all data]
Akiyama, Li, et al., 1979
Akiyama, I.; Li, K.C.; LeBreton, P.R.; Fu, P.P.; Harvey, R.G.,
Ultraviolet photoelectron studies of polycyclic aromatic hydrocarbons. The ground-state electronic structure of aryloxiranes and metabolites of benzo[a]pyrene,
J. Phys. Chem., 1979, 83, 2997. [all data]
Ruscic, Kovac, et al., 1978
Ruscic, B.; Kovac, B.; Klasinc, L.; Gusten, H.,
Photoelectron spectroscopy of J. Heterocycl. Chem.. Fluorene analogues,
Z. Naturforsch. A:, 1978, 33, 1006. [all data]
Natalis and Franklin, 1965
Natalis, P.; Franklin, J.L.,
Ionization and dissociation of diphenyl and condensed ring aromatics by electron impact. I. Biphenyl, diphenylacetylene, and phenanthrene,
J. Phys. Chem., 1965, 69, 2935. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy EA Electron affinity IE (evaluated) Recommended ionization energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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