Benzene, (methoxymethyl)-
- Formula: C8H10O
- Molecular weight: 122.1644
- IUPAC Standard InChIKey: GQKZBCPTCWJTAS-UHFFFAOYSA-N
- CAS Registry Number: 538-86-3
- 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: Ether, benzyl methyl; α-Methoxytoluene; Benzyl methyl ether; Methyl benzyl ether; Methoxymethylbenzene; α-Methylbenzyl ether
- 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.
Phase change data
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, 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
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 447. | K | N/A | Buckingham and Donaghy, 1982 | BS |
Tboil | 443.7 | K | N/A | Olson, Hipsher, et al., 1947 | Uncertainty assigned by TRC = 0.6 K; TRC |
Tboil | 440.95 | K | N/A | Lecat, 1943 | Uncertainty assigned by TRC = 0.4 K; TRC |
Tboil | 443.65 | K | N/A | Perkin, 1896 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 220.52 | K | N/A | Olson, Hipsher, et al., 1947 | Uncertainty assigned by TRC = 0.4 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 12.3 ± 0.07 | kcal/mol | GS | Krasnykh, Vasiltsova, et al., 2002 | Based on data from 274. to 314. K.; AC |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
347. to 350. | 0.039 | Frinton Laboratories Inc., 1986 | BS |
335. to 343. | 0.020 | Buckingham and Donaghy, 1982 | BS |
Reaction thermochemistry data
Go To: Top, Phase change data, Gas phase ion energetics data, 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
Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.
Individual Reactions
By formula: C7H6 + CH4O = C8H10O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -51.1 | kcal/mol | Cm | Billups, Chow, et al., 1973 | liquid phase; solvent: Methanol |
Gas phase ion energetics data
Go To: Top, Phase change data, Reaction thermochemistry data, 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
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to C8H10O+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 195.2 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 188.2 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.76 | EI | Hoffman and Bursey, 1971 | LLK |
8.83 ± 0.05 | EI | Pignataro, Foffani, et al., 1966 | RDSH |
8.85 ± 0.03 | PI | Watanabe, 1957 | RDSH |
9.07 | PE | Shudo, Kobayashi, et al., 1977 | Vertical value; LLK |
9.12 | PE | Bock and Wagner, 1972 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C7H7+ | 11.78 | ? | EI | Hoffman and Bursey, 1971 | LLK |
C7H7+ | 11.65 | ? | EI | Loudon, Maccoll, et al., 1970 | RDSH |
C7H7O+ | 11.47 | CH3 | EI | Hoffman and Bursey, 1971 | LLK |
C8H9O+ | 10.7 ± 0.1 | H | EI | Meyer and Harrison, 1964 | RDSH |
References
Go To: Top, Phase change data, Reaction thermochemistry data, 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.
Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M.,
Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]
Olson, Hipsher, et al., 1947
Olson, W.T.; Hipsher, H.F.; Buess, C.M.; Goodman, I.A.; Hart, I.; Lamneck, J.H.; Gibbons, L.C.,
The Synthesis and Purification of Ethers,
J. Am. Chem. Soc., 1947, 69, 2451-4. [all data]
Lecat, 1943
Lecat, M.,
Azeotropes of Ethyl Urethane and other Azeotropes,
C. R. Hebd. Seances Acad. Sci., 1943, 217, 273. [all data]
Perkin, 1896
Perkin, W.H.,
LXIX. On Magnetic Rotatory Power, especially of Aromatic Compounds,
J. Chem. Soc., 1896, 69, 1025-1257. [all data]
Krasnykh, Vasiltsova, et al., 2002
Krasnykh, Eugen L.; Vasiltsova, Tatiana V.; Verevkin, Sergey P.; Heintz, Andreas,
Vapor Pressures and Enthalpies of Vaporization of Benzyl Halides and Benzyl Ethers,
J. Chem. Eng. Data, 2002, 47, 6, 1372-1378, https://doi.org/10.1021/je020034h
. [all data]
Frinton Laboratories Inc., 1986
Frinton Laboratories Inc.,
Catalog Number 11, Frinton Laboratories Inc., Vineland, NJ, 1986, 99. [all data]
Billups, Chow, et al., 1973
Billups, W.E.; Chow, W.Y.; Leavell, K.H.; Lewis, E.S.; Margrave, J.L.; Sass, R.L.; Shieh, J.J.; Werness, P.G.; Wood, J.L.,
Structure and thermochemistry of benzocyclopropenes. Bond fixation and strain energy,
J. Am. Chem. Soc., 1973, 95, 7878-7880. [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]
Hoffman and Bursey, 1971
Hoffman, M.K.; Bursey, M.M.,
Structural characteristics of non-decomposing C7H7+ ions from some methyl ethers on electron impact,
Chem. Commun., 1971, 824. [all data]
Pignataro, Foffani, et al., 1966
Pignataro, S.; Foffani, A.; Innorta, G.; Distefano, G.,
Molecular structural effects on the ionization potentials for metasubstituted aromatic compounds and for compounds of the type X-CH2-R,
Z. Physik. Chem. (Frankfurt), 1966, 49, 291. [all data]
Watanabe, 1957
Watanabe, K.,
Ionization potentials of some molecules,
J. Chem. Phys., 1957, 26, 542. [all data]
Shudo, Kobayashi, et al., 1977
Shudo, K.; Kobayashi, T.; Utsunomiya, C.,
Photoelectron spectral studies on the interaction of three-membered rings with aryl groups,
Tetrahedron, 1977, 33, 1721. [all data]
Bock and Wagner, 1972
Bock, H.; Wagner, G.,
Electron lone pairs in organic sulfides and disulfides,
Angew. Chem. Int. Ed. Engl., 1972, 11, 119. [all data]
Loudon, Maccoll, et al., 1970
Loudon, A.G.; Maccoll, A.; Wong, S.K.,
Comparison between unimolecular gas phase pyrolysis and electron impact fragmentation. Part I. The mass spectra of tetralin and some related heterocycles,
J. Chem. Soc. B, 1970, 1727. [all data]
Meyer and Harrison, 1964
Meyer, F.; Harrison, A.G.,
An electron impact study of methyl phenyl ethers,
Can. J. Chem., 1964, 42, 2008. [all data]
Notes
Go To: Top, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Tboil Boiling point Tfus Fusion (melting) point ΔrH° Enthalpy of reaction 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.