Benzene, 1,3-dimethoxy-
- Formula: C8H10O2
- Molecular weight: 138.1638
- IUPAC Standard InChIKey: DPZNOMCNRMUKPS-UHFFFAOYSA-N
- CAS Registry Number: 151-10-0
- 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: Benzene, m-dimethoxy-; m-Dimethoxybenzene; Resorcinol dimethyl ether; 1,3-Dimethoxybenzene; Dimethylether resorcinolu; 3-Methoxyanisole; m-Methoxyanisole
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Phase change data
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible 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 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 | 490.7 | K | N/A | Weast and Grasselli, 1989 | BS |
Tboil | 490.25 | K | N/A | Perkin, 1896 | Uncertainty assigned by TRC = 1. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 237.85 | K | N/A | Timmermans, 1921 | Uncertainty assigned by TRC = 0.3 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 61.5 ± 1.4 | kJ/mol | C | Matos, Miranda, et al., 2000 | AC |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
359.2 | 0.009 | Aldrich Chemical Company Inc., 1990 | BS |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
60.8 | 373. | A,GC | Stephenson and Malanowski, 1987 | Based on data from 358. to 423. K. See also Kundel, Lille, et al., 1975.; AC |
Gas phase ion energetics data
Go To: Top, Phase change data, Mass spectrum (electron ionization), UV/Visible 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 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
LL - Sharon G. Lias and Joel F. Liebman
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.2 ± 0.1 | EI | Brown, 1970 | RDSH |
8.0 ± 0.15 | CTS | Voigt and Reid, 1964 | RDSH |
8.14 | PE | Anderson, Kollman, et al., 1979 | Vertical value; LLK |
8.18 | PE | Domelsmith and Houk, 1978 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C6H5+ | 14.4 | CH3+CO+H2O | EI | Mori, Ogawa, et al., 1992 | LL |
C6H7O+ | 12.5 | CH3+CO | EI | Mori, Ogawa, et al., 1992 | LL |
C7H7O2+ | 11.2 ± 0.1 | CH3 | EI | Brown, 1970 | RDSH |
C7H7O2+ | 11.6 ± 0.1 | CH3 | EI | Tait, Shannon, et al., 1962 | RDSH |
C7H8O+ | 11.0 ± 0.1 | CH2O | EI | Brown, 1970 | RDSH |
Mass spectrum (electron ionization)
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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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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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. |
---|---|
Origin | NIST Mass Spectrometry Data Center |
NIST MS number | 352778 |
UV/Visible spectrum
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Spectrum
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Additional Data
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Source | LANG, 1969 |
---|---|
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. 19063 |
Instrument | Beckman DU |
Boiling point | 212 |
Gas Chromatography
Go To: Top, 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
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Packed | Apiezon L | 100. | 1147. | Bogoslovsky, Anvaer, et al., 1978 | Chromatone N AW DNCS |
Packed | Apiezon L | 150. | 1164. | Bogoslovsky, Anvaer, et al., 1978 | Chromatone N AW DNCS |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | OV-1 | 1138.8 | Gautzsch and Zinn, 1996 | 8. K/min; Tstart: 35. C; Tend: 300. C |
Van Den Dool and Kratz RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | VF-5MS | 1181.9 | Tret'yakov, 2008 | 30. m/0.25 mm/0.25 μm, He; Program: Multi-step temperature program; T(initial)=60C; T(final)=270C |
Van Den Dool and Kratz RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-Wax | 1730. | Ferrari, Lablanquie, et al., 2004 | 60. m/0.25 mm/0.25 μm, He; Program: 35C(0.7min) => 20C/min => 70C => 4C/min => 240C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Polydimethyl siloxane with 5 % Ph groups | 1175. | Robinson, Adams, et al., 2012 | Program: not specified |
Capillary | Polydimethyl siloxane with 5 % Ph groups | 1182. | Robinson, Adams, et al., 2012 | Program: not specified |
Capillary | SE-30 | 1143. | Vinogradov, 2004 | Program: not specified |
Capillary | RTX-5 MS | 1158. | Rogerson, Azevedo, et al., 2002 | 30. m/0.32 mm/1. μm, He; Program: 40C(20min) => 1.5C/min => 200C (4min) => 10C/min => 250C (120min) |
Normal alkane RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | AT-Wax | 1761. | Kiss, Csoka, et al., 2011 | 60. m/0.25 mm/0.25 μm, Helium, 4. K/min; Tstart: 60. C; Tend: 280. C |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Carbowax 20M | 1740. | Vinogradov, 2004 | Program: not specified |
Capillary | Supelcowax-10 | 1709. | Rogerson, Azevedo, et al., 2002 | 60. m/0.25 mm/0.25 μm, He; Program: 40C(20min) => 1.5C/min => 200C (4min) => 10C/min => 250C (120min) |
Capillary | DB-Wax | 1762. | Caldentey, Daria Fumi, et al., 1998 | 30. m/0.25 mm/0.25 μm, He; Program: 25C(8min) => 4C/min => 60C => 6C/min => 160C => 20C/min => 200C |
Capillary | DB-Wax | 1737. | Peng, Yang, et al., 1991 | Program: not specified |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Perkin, 1896
Perkin, W.H.,
LXIX. On Magnetic Rotatory Power, especially of Aromatic Compounds,
J. Chem. Soc., 1896, 69, 1025-1257. [all data]
Timmermans, 1921
Timmermans, J.,
The Freezing Points of Organic Substances IV. New Exp. Determinations,
Bull. Soc. Chim. Belg., 1921, 30, 62. [all data]
Matos, Miranda, et al., 2000
Matos, M.A.R.; Miranda, M.S.; Morais, V.M.F.,
Calorimetric and Theoretical Determination of Standard Enthalpies of Formation of Dimethoxy- and Trimethoxybenzene Isomers,
J. Phys. Chem. A, 2000, 104, 40, 9260-9265, https://doi.org/10.1021/jp001928g
. [all data]
Aldrich Chemical Company Inc., 1990
Aldrich Chemical Company Inc.,
Catalog Handbook of Fine Chemicals, Aldrich Chemical Company, Inc., Milwaukee WI, 1990, 1. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Kundel, Lille, et al., 1975
Kundel, H.; Lille, U.; Kaidas, N.,
Tr. Tallin. Politekh. Inst., 1975, 390, 107. [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]
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]
Anderson, Kollman, et al., 1979
Anderson, G.M., III; Kollman, P.A.; Domelsmith, L.N.; Houk, K.N.,
Methoxy group nonplanarity in o-dimethoxybenzenes. Simple predictive models for conformations and rotational barriers in alkoxyaromatics,
J. Am. Chem. Soc., 1979, 101, 2344. [all data]
Domelsmith and Houk, 1978
Domelsmith, L.N.; Houk, K.N.,
Photoelectron spectroscopic studies of hallucinogens: The use of ionization potentials in QSAR,
NIDA Res. Monogr., 1978, 22, 423. [all data]
Mori, Ogawa, et al., 1992
Mori, Y.; Ogawa, Y.; Shinoda, H.; Kitagawa, T.,
Two competing fragmentation processes in dimethoxybenzenes depending on their positional isomers: Elimination of CH3 and CHnO (n = 1-3) and formation of methoxycyclopentadienyl and protonated phenol ions,
Org. Mass Spectrom., 1992, 27, 578. [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]
LANG, 1969
Absorption Spectra in the Ultraviolet and Visible Region, L. LANG, ed(s)., Academic Press, New York, 1969, 67. [all data]
Bogoslovsky, Anvaer, et al., 1978
Bogoslovsky, Yu.N.; Anvaer, B.I.; Vigdergauz, M.S.,
Chromatographic constants in gas chromatography (in Russian), Standards Publ. House, Moscow, 1978, 192. [all data]
Gautzsch and Zinn, 1996
Gautzsch, R.; Zinn, P.,
Use of incremental models to estimate the retention indexes of aromatic compounds,
Chromatographia, 1996, 43, 3/4, 163-176, https://doi.org/10.1007/BF02292946
. [all data]
Tret'yakov, 2008
Tret'yakov, K.V.,
Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2008. [all data]
Ferrari, Lablanquie, et al., 2004
Ferrari, G.; Lablanquie, O.; Cantagrel, R.; Ledauphin, J.; Payot, T.; Fournier, N.; Guichard, E.,
Determination of key odorant compounds in freshly distilled cognac using GC-O, GC-MS, and sensory evaluation,
J. Agric. Food Chem., 2004, 52, 18, 5670-5676, https://doi.org/10.1021/jf049512d
. [all data]
Robinson, Adams, et al., 2012
Robinson, A.L.; Adams, D.O.; Boss, P.K.; Heymann, H.; Solomon, P.S.; Trengove, R.D.,
Influence of geographic origine on the sensory characteristics and wine composition of Vitus viniferas cv. Cabernet Sauvignon wines from Australia (Supplemental data),
Am. J. Enol. Vitic., 2012, 64, 4, 467-476, https://doi.org/10.5344/ajev.2012.12023
. [all data]
Vinogradov, 2004
Vinogradov, B.A.,
Production, composition, properties and application of essential oils, 2004, retrieved from http://viness.narod.ru. [all data]
Rogerson, Azevedo, et al., 2002
Rogerson, F.S.S.; Azevedo, Z.; Fortunato, N.; de Freitas, V.A.P.,
1,3-Dimethoxybenzene, a newly identified component of port wine,
J. Sci. Food Agric., 2002, 82, 11, 1287-1292, https://doi.org/10.1002/jsfa.1182
. [all data]
Kiss, Csoka, et al., 2011
Kiss, M.; Csoka, M.; Gyorfi, J.; Korany, K.,
Comparison of the fragrance constituents of Tuber aestivium and Tuber Brumale gathered in Hungary,
J. Appl. Botany Food Quality, 2011, 84, 102-110. [all data]
Caldentey, Daria Fumi, et al., 1998
Caldentey, P.; Daria Fumi, M.; Mazzoleni, V.; Careri, M.,
Volatile compounds produced by microorganisms isolated from cork,
Flavour Fragr. J., 1998, 13, 3, 185-188, https://doi.org/10.1002/(SICI)1099-1026(199805/06)13:3<185::AID-FFJ723>3.0.CO;2-W
. [all data]
Peng, Yang, et al., 1991
Peng, C.T.; Yang, Z.C.; Ding, S.F.,
Prediction of rentention idexes. II. Structure-retention index relationship on polar columns,
J. Chromatogr., 1991, 586, 1, 85-112, https://doi.org/10.1016/0021-9673(91)80028-F
. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy Tboil Boiling point Tfus Fusion (melting) point ΔvapH Enthalpy of vaporization ΔvapH° Enthalpy of vaporization at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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