2,6-Xylidine
- Formula: C8H11N
- Molecular weight: 121.1796
- IUPAC Standard InChIKey: UFFBMTHBGFGIHF-UHFFFAOYSA-N
- CAS Registry Number: 87-62-7
- 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: Benzenamine, 2,6-dimethyl-; 1-Amino-2,6-dimethylbenzene; 2-Amino-m-xylene; 2-Amino-1,3-dimethylbenzene; 2-Amino-1,3-xylene; 2,6-Dimethylaniline; 2,6-Dimethylbenzenamine; o-Xylidine; Aniline, 2,6-dimethyl-; NCI-C56188; 2,6-Xylylamine; 2,6-Dimethylphenylamine; NSC 7098
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Phase change data
Go To: Top, Gas phase ion energetics data, IR 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
DH - Eugene S. Domalski and Elizabeth D. Hearing
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 | 487. to 489. | K | N/A | Frinton Laboratories Inc., 1986 | BS |
Quantity | Value | Units | Method | Reference | Comment |
Tfus | 284.598 | K | N/A | Steele, Chirico, et al., 1986 | DH |
Tfus | 284.16 | K | N/A | Schwartzman and Corson, 1954 | Uncertainty assigned by TRC = 0.3 K; TRC |
Tfus | 284.4 | K | N/A | Birch, Dean, et al., 1949 | Uncertainty assigned by TRC = 1. K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔvapH° | 14.2 ± 0.07 | kcal/mol | N/A | Verevkin, 2000 | AC |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
487.2 | 0.972 | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
14.1 ± 0.07 | 306. | N/A | Verevkin, 2000 | Based on data from 286. to 326. K.; AC |
11.6 | 388. | A | Stephenson and Malanowski, 1987 | Based on data from 373. to 490. K.; AC |
12.1 | 332. | N/A | Stull, 1947 | Based on data from 317. to 491. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
Temperature (K) | A | B | C | Reference | Comment |
---|---|---|---|---|---|
317. to 491.1 | 4.69480 | 2157.756 | -32.151 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Gas phase ion energetics data
Go To: Top, Phase change data, IR 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - 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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 7.33 ± 0.05 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 215.5 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 207.9 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
7.30 ± 0.02 | PE | Maier and Turner, 1973 | LLK |
7.36 | PE | Cowling and Johnstone, 1973 | LLK |
7.5 ± 0.1 | CTS | Farrell and Newton, 1966 | RDSH |
7.78 ± 0.05 | PE | Szepes, Distefano, et al., 1974 | Vertical value; LLK |
IR Spectrum
Go To: Top, Phase change data, Gas phase ion energetics data, Gas Chromatography, References, Notes
Data compiled by: Coblentz Society, Inc.
- LIQUID (NEAT); BECKMAN IR-4 (HYBRID PRISM-GRATING); DIGITIZED BY COBLENTZ SOCIETY (BATCH I) FROM HARD COPY (ADJUSTED 0.035-0.03-0); 2 cm-1 resolution
- SOLUTION (10% IN CCl4 FOR 5000-1350 CM-1, 10% IN CS2 FOR 1350-625 CM-1); Not specified, most likely a prism, grating, or hybrid spectrometer.; DIGITIZED BY NIST FROM HARD COPY; 4 cm-1 resolution
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Gas Chromatography
Go To: Top, Phase change data, Gas phase ion energetics data, IR 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 |
---|---|---|---|---|---|
Capillary | SPB-1 | 100. | 1135.52 | Berezkin, Korolev, et al., 2000 | 30. m/0.25 mm/0.25 μm, He |
Capillary | DB-1 | 100. | 1136.26 | Berezkin, Korolev, et al., 2000 | 30. m/0.25 mm/0.25 μm, He |
Capillary | ZB-1 | 100. | 1137.15 | Berezkin, Korolev, et al., 2000 | 30. m/0.25 mm/0.25 μm, He |
Capillary | BP-1 | 100. | 1136.34 | Berezkin, Korolev, et al., 2000 | 30. m/0.25 mm/0.25 μm, He |
Capillary | SE-30 | 100. | 1137.93 | Malyukova, Berezkin, et al., 1997 | 30. m/0.25 mm/0.25 μm, He |
Capillary | SE-30 | 100. | 1143.41 | Malyukova, Berezkin, et al., 1997 | 30. m/0.25 mm/0.25 μm, SF6 |
Capillary | SE-33 | 120. | 1179. | Juvancz, Cserháti, et al., 1994 | 10. m/0.20 mm/0.15 μm, H2 |
Capillary | OV-101 | 110. | 1140.7 | Farkas, Sojak, et al., 1989 | 14. m/0.325 mm/0.305 μm, H2 |
Kovats' RI, polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | Carbowax 20M | 130. | 1940. | Hedin, Thopson, et al., 1972 | N2; Column length: 15.24 m; Column diameter: 0.5 mm |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | OV-1 | 1136.2 | Gautzsch and Zinn, 1996 | 8. K/min; Tstart: 35. C; Tend: 300. C |
Capillary | DB-5 | 1167. | Rostad and Pereira, 1986 | 30. m/0.26 mm/0.25 μm, He, 50. C @ 4. min, 6. K/min, 300. C @ 20. min |
Normal alkane RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | SE-30 | 120. | 1149. | Berezkin, Korolev, et al., 1998 | 75. m/0.14 mm/0.30 μm, He |
Capillary | SE-30 | 90. | 1134. | Berezkin and Korolev, 1985 | Helium; Column length: 25. m; Column diameter: 0.32 mm |
Capillary | SE-30 | 90. | 1143. | Berezkin and Korolev, 1985 | Helium; Column length: 25. m; Column diameter: 0.32 mm |
Capillary | SE-30 | 90. | 1143. | Berezkin and Korolev, 1985 | Helium; Column length: 25. m; Column diameter: 0.32 mm |
Capillary | SE-30 | 90. | 1146. | Berezkin and Korolev, 1985 | Helium; Column length: 25. m; Column diameter: 0.32 mm |
Capillary | SE-30 | 90. | 1157. | Berezkin and Korolev, 1985 | Helium; Column length: 25. m; Column diameter: 0.32 mm |
Capillary | SE-30 | 90. | 1173. | Berezkin and Korolev, 1985 | Helium; Column length: 25. m; Column diameter: 0.32 mm |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5 | 1168.19 | Kim, Kim, et al., 1993 | 30. m/0.25 mm/0.241 μm, 60. C @ 2. min, 4. K/min; Tend: 160. C |
Capillary | Ultra-1 | 1131. | Okumura, 1991 | 25. m/0.32 mm/0.25 μm, He, 3. K/min; Tstart: 80. C; Tend: 260. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | OV-1 | 1130. | Waggott and Davies, 1984 | Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified |
Lee's RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5 | 196.15 | Rostad and Pereira, 1986 | 30. m/0.26 mm/0.25 μm, He, 50. C @ 4. min, 6. K/min, 300. C @ 20. min |
References
Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Frinton Laboratories Inc., 1986
Frinton Laboratories Inc.,
Catalog Number 11, Frinton Laboratories Inc., Vineland, NJ, 1986, 99. [all data]
Steele, Chirico, et al., 1986
Steele, W.V.; Chirico, R.D.; Collier, W.B.; Hossenlopp, I.A.; Nguyen, A.; Strube, M.M.,
Thermochemical and thermophysical properties of organic nitrogen compounds found in fossil materials,
NIPER Report, 1986, 188, 112p. [all data]
Schwartzman and Corson, 1954
Schwartzman, L.H.; Corson, B.B.,
Steric Hinderance I. 2,6-Dimethylacetophenone and 2,6-Dimethylstyrene,
J. Am. Chem. Soc., 1954, 76, 781. [all data]
Birch, Dean, et al., 1949
Birch, S.F.; Dean, R.A.; Fidler, F.A.; Lowry, R.A.,
The preparation of the c(10) monocyclic aromatic hydrocarbons,
J. Am. Chem. Soc., 1949, 71, 1362. [all data]
Verevkin, 2000
Verevkin, Sergey P.,
Thermochemical study of the ortho interactions in alkyl substituted anilines,
The Journal of Chemical Thermodynamics, 2000, 32, 2, 247-259, https://doi.org/10.1006/jcht.1999.0587
. [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]
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]
Stull, 1947
Stull, Daniel R.,
Vapor Pressure of Pure Substances. Organic and Inorganic Compounds,
Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022
. [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, 1973
Maier, J.P.; Turner, D.W.,
Steric inhibition of resonance studied by molecular photoelectron spectroscopy Part 3. Anilines, Phenols and Related Compounds,
J. Chem. Soc. Faraday Trans. 2, 1973, 69, 521. [all data]
Cowling and Johnstone, 1973
Cowling, S.A.; Johnstone, R.A.W.,
Photoelectron spectroscopy: The effects of steric inhibition to resonance in anilines,
J. Electron Spectrosc. Relat. Phenom., 1973, 2, 161. [all data]
Farrell and Newton, 1966
Farrell, P.G.; Newton, J.,
Ionization potentials of primary aromatic amines and aza-hydrocarbons,
Tetrahedron Lett., 1966, 5517. [all data]
Szepes, Distefano, et al., 1974
Szepes, L.; Distefano, G.; Pignataro, S.,
Steric inhibition of resonance in acetanilides by UV photoelectron spectroscopy,
Ann. Chim., 1974, 64, 159. [all data]
Berezkin, Korolev, et al., 2000
Berezkin, V.G.; Korolev, A.A.; Malyukova, I.V.,
A comparative analysis of retention values obtained on fused silica capillary columns from various manufacturers,
Analusis, 2000, 28, 2, 132-135, https://doi.org/10.1051/analusis:2000105
. [all data]
Malyukova, Berezkin, et al., 1997
Malyukova, I.V.; Berezkin, V.G.; Kramers, K.; Jansen, H.G.,
Capillary chromatrography of hydrocarbons and their derivatives. Use of sulphur hexafluoride as the carrier gas,
Pet. Chem. USSR (Engl. Transl.), 1997, 37, 3, 265-272. [all data]
Juvancz, Cserháti, et al., 1994
Juvancz, Z.; Cserháti, T.; Markides, K.E.; Bradshaw, J.S.; Lee, M.L.,
Characterization of some new polysiloxane stationary phases by principal component analysis,
Chromatographia, 1994, 38, 3/4, 227-231, https://doi.org/10.1007/BF02290341
. [all data]
Farkas, Sojak, et al., 1989
Farkas, P.; Sojak, L.; Kovac, M.; Janak, J.,
Interface Adsorption and Reproducibility of Retention Indices in Glass Capillary Columns with Dimethylpolysiloxane Stationary Phases Cross-Linked by γ-Irradiation,
J. Chromatogr., 1989, 471, 251-261, https://doi.org/10.1016/S0021-9673(00)94173-6
. [all data]
Hedin, Thopson, et al., 1972
Hedin, P.A.; Thopson, A.C.; Gueldner, R.C.; Minyard, J.P.,
Volatile constituents of the boll weevil,
J. Insect. Physiol., 1972, 18, 1, 79-86, https://doi.org/10.1016/0022-1910(72)90066-2
. [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]
Rostad and Pereira, 1986
Rostad, C.E.; Pereira, W.E.,
Kovats and Lee retention indices determined by gas chromatography/mass spectrometry for organic compounds of environmental interest,
J. Hi. Res. Chromatogr. Chromatogr. Comm., 1986, 9, 6, 328-334, https://doi.org/10.1002/jhrc.1240090603
. [all data]
Berezkin, Korolev, et al., 1998
Berezkin, V.G.; Korolev, A.A.; Malyukova, I.V.,
Dependence of the relative retention of compounds on the average pressure of helium as a carrier gas in capillary GLC,
Russ. Chem. Bull. (Engl. Transl.), 1998, 47, 2, 307-309, https://doi.org/10.1007/BF02498955
. [all data]
Berezkin and Korolev, 1985
Berezkin, V.G.; Korolev, A.A.,
Investigation of the role of adsorption at the stationary phase interface in capillary columns with cross-linked phases,
Chromatographia, 1985, 20, 8, 482-486, https://doi.org/10.1007/BF02344790
. [all data]
Kim, Kim, et al., 1993
Kim, K.-R.; Kim, J.-H.; Park, H.-K.; Oh, C.-H.,
Dual capillary column system for the qualitative gas chromatography: 2. Comparison between splitless and on-column injection modes,
Bull. Korean Chem. Soc., 1993, 14, 2, 250-255. [all data]
Okumura, 1991
Okumura, T.,
retention indices of environmental chemicals on methyl silicone capillary column,
Journal of Environmental Chemistry (Japan), 1991, 1, 2, 333-358, https://doi.org/10.5985/jec.1.333
. [all data]
Waggott and Davies, 1984
Waggott, A.; Davies, I.W.,
Identification of organic pollutants using linear temperature programmed retention indices (LTPRIs) - Part II, 1984, retrieved from http://dwi.defra.gov.uk/research/completed-research/reports/dwi0383.pdf. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, IR Spectrum, Gas Chromatography, References
- Symbols used in this document:
IE (evaluated) Recommended ionization 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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