Benzene, 1-methoxy-3-methyl-
- Formula: C8H10O
- Molecular weight: 122.1644
- IUPAC Standard InChIKey: OSIGJGFTADMDOB-UHFFFAOYSA-N
- CAS Registry Number: 100-84-5
- 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: Anisole, m-methyl-; m-Cresol methyl ether; m-Methoxytoluene; m-Methylanisole; Methyl m-tolyl ether; 1-Methoxy-3-methylbenzene; 3-Methoxytoluene; 3-Methylanisole; m-Cresyl methyl ether; Methyl m-cresyl ether; Methyl 3-methylphenyl ether; 1-Methyl-3-methoxybenzene; 3-Methylmethoxybenzene; 3-Methyl-1-methoxybenzene; NSC 6255
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Gas 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: Glushko Thermocenter, Russian Academy of Sciences, Moscow
Constant pressure heat capacity of gas
Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
53.59 | 100. | Sharma S.N., 1982 | Estimations by difference method [ Dorofeeva O.V., 1997] have reason to suppose that Cp(298.15 K) and S(298.15 K) values obtained by [83SHA3] may be underestimated by 10-25 J/mol*K. |
97.79 | 200. | ||
142.89 | 300. | ||
187.09 | 400. | ||
225.82 | 500. | ||
258.03 | 600. | ||
284.64 | 700. | ||
306.81 | 800. | ||
325.43 | 900. | ||
341.19 | 1000. | ||
354.60 | 1100. | ||
366.05 | 1200. | ||
375.87 | 1300. | ||
384.32 | 1400. | ||
391.62 | 1500. | ||
397.96 | 1600. | ||
403.47 | 1700. | ||
408.30 | 1800. | ||
412.53 | 1900. | ||
416.27 | 2000. |
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°liquid | -155.4 | kJ/mol | Ccb | Badoche, 1941 | Author's hf298_condensed=-40.25 kcal/mol |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -4421.90 | kJ/mol | Ccb | Badoche, 1941 | Author's hf298_condensed=-40.25 kcal/mol; Corresponding ΔfHºliquid = -155.3 kJ/mol (simple calculation by NIST; no Washburn corrections) |
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:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tboil | 448.7 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 448. to 449. | K | N/A | Frinton Laboratories Inc., 1986 | BS |
Tboil | 449.7 | K | N/A | Olson, Hipsher, et al., 1947 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tboil | 449.59 | K | N/A | Boord, Greenlee, et al., 1945 | Uncertainty assigned by TRC = 0.2 K; TRC |
Tboil | 449.9 | K | N/A | Perkin, 1896 | Uncertainty assigned by TRC = 0.5 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 217.23 | K | N/A | Olson, Hipsher, et al., 1947 | Uncertainty assigned by TRC = 0.4 K; TRC |
Tfus | 217.9 | K | N/A | Boord, Greenlee, et al., 1945 | Uncertainty assigned by TRC = 0.3 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tc | 665.3 | K | N/A | Young, 1994 | Uncertainty assigned by TRC = 0.6 K; TRC |
Gas phase ion energetics 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:
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
View reactions leading to C8H10O+ (ion structure unspecified)
Proton affinity at 298K
Proton affinity (kJ/mol) | Reference | Comment |
---|---|---|
860. ± 8. | van Beelen, Koblenz, et al., 2004 | T = 298K; PA derived by authors from GB with protonation entropy equated to Rlnσ(B)/σ(BH+); MM |
Gas basicity at 298K
Gas basicity (review) (kJ/mol) | Reference | Comment |
---|---|---|
828. ± 8. | van Beelen, Koblenz, et al., 2004 | T = 298K; PA derived by authors from GB with protonation entropy equated to Rlnσ(B)/σ(BH+); MM |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.0 | PE | Kobayashi and Nagakura, 1974 | LLK |
8.4 ± 0.1 | EI | Brown, 1970 | RDSH |
8.31 ± 0.05 | EI | Pignataro, Foffani, et al., 1966 | RDSH |
8.1 ± 0.15 | CTS | Voigt and Reid, 1964 | RDSH |
8.28 | PE | Kobayashi and Nagakura, 1974 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C6H7+ | 12.9 | ? | EI | Harrison, Haynes, et al., 1965 | RDSH |
C7H7O+ | 11.6 ± 0.1 | CH3 | EI | Brown, 1970 | RDSH |
C7H7O+ | 11.3 ± 0.1 | CH3 | EI | Tait, Shannon, et al., 1962 | RDSH |
C7H8+ | 11.2 ± 0.1 | CH2O | EI | Brown, 1970 | RDSH |
C7H9+ | 11.7 | CO+H? | EI | Harrison, Haynes, et al., 1965 | RDSH |
C8H9O+ | 12.1 ± 0.1 | H | EI | Meyer and Harrison, 1964 | RDSH |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change 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.
Sharma S.N., 1982
Sharma S.N.,
Infrared and laser Raman spectra of m- and p-methylanisoles,
Acta Phys. Pol., 1982, A62, 449-456. [all data]
Dorofeeva O.V., 1997
Dorofeeva O.V.,
Unpublished results. Thermocenter of Russian Academy of Science, Moscow, 1997. [all data]
Badoche, 1941
Badoche, M.,
No 19. - Chaleurs de combustion du phenol, du-m-cresol et del leurs ethers; par M. Marius BADOCHE.,
Bull. Soc. Chim. Fr., 1941, 8, 212-220. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Frinton Laboratories Inc., 1986
Frinton Laboratories Inc.,
Catalog Number 11, Frinton Laboratories Inc., Vineland, NJ, 1986, 99. [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]
Boord, Greenlee, et al., 1945
Boord, C.E.; Greenlee, K.W.; Perilstein, W.L.,
, Am. Pet. Inst. Res. Proj. 45, Seventh Annu. Rep., Ohio State Univ., June 30, 1945. [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]
Young, 1994
Young, C.L.,
Personal Commun. 1994 1994, 1994. [all data]
van Beelen, Koblenz, et al., 2004
van Beelen, E.S.E.; Koblenz, T.A.; Ingemann, S.; Hammerum, S.,
Experimental and theoretical evaluation of proton affinities of furan, the methylphenols, and the related anisoles,
J. Phys. Chem. A, 2004, 108, 2787. [all data]
Kobayashi and Nagakura, 1974
Kobayashi, T.; Nagakura, S.,
Photoelectron spectra of substituted benzenes,
Bull. Chem. Soc. Jpn., 1974, 47, 2563. [all data]
Brown, 1970
Brown, P.,
Kinetic studies in mass spectrometry. VIII. Competing [M-CH3] and [M-CH2O] reactions in substituted anisoles. Approximate activation energies from ionization appearance potentials,
Org. Mass Spectrom., 1970, 4, 519. [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]
Voigt and Reid, 1964
Voigt, E.M.; Reid, C.,
Ionization potentials of substituted benzenes and their charge-transfer spectra with tetracyanoethylene,
J. Am. Chem. Soc., 1964, 86, 3930. [all data]
Harrison, Haynes, et al., 1965
Harrison, A.G.; Haynes, P.; McLean, S.; Meyer, F.,
The mass spectra of methyl-substituted cyclopentadienes,
J. Am. Chem. Soc., 1965, 87, 5099. [all data]
Tait, Shannon, et al., 1962
Tait, J.M.S.; Shannon, T.W.; Harrison, A.G.,
The structure of substituted C7 ions from benzyl derivatives at the appearance potential threshold,
J. Am. Chem. Soc., 1962, 84, 4. [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, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Cp,gas Constant pressure heat capacity of gas Tboil Boiling point Tc Critical temperature Tfus Fusion (melting) point ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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