Pyridine, 3,5-dimethyl-

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.


Gas phase ion energetics data

Go To: Top, 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.

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

View reactions leading to C7H9N+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
Proton affinity (review)955.4kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity923.5kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
9.25PERamsey and Walker, 1974Vertical value; LLK

Mass spectrum (electron ionization)

Go To: Top, Gas phase ion energetics data, 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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

Notice: This spectrum may be better viewed with a Javascript and HTML 5 enabled browser.

Mass spectrum
For Zoom
1.) Enter the desired X axis range (e.g., 100, 200)
2.) Check here for automatic Y scaling
3.) Press here to zoom

Additional Data

View image of digitized spectrum (can be printed in landscape orientation).

Due to licensing restrictions, this spectrum cannot be downloaded.

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 Japan AIST/NIMC Database- Spectrum MS-NW- 712
NIST MS number 227863

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


Gas Chromatography

Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), 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

View large format table.

Column type Active phase Temperature (C) I Reference Comment
CapillaryDB-1MS90.954.Vickers, Kuhn, et al., 200330. m/0.25 mm/0.25 μm, He
CapillaryDB-190.952.Vickers, Kuhn, et al., 200330. m/0.25 mm/0.25 μm, He
CapillaryDB-560.978.9Kuhn, 200130. m/0.25 mm/0.25 μm, H2
CapillaryDB-5MS60.980.5Kuhn, 200130. m/0.25 mm/0.25 μm, H2
PackedC78, Branched paraffin130.963.5Dallos, Sisak, et al., 2000He; Column length: 3.3 m
CapillaryOV-101110.974.Golovnya, Kuz'menko, et al., 2000He; Phase thickness: 0.4 μm
PackedC78, Branched paraffin130.961.4Reddy, Dutoit, et al., 1992Chromosorb G HP; Column length: 3.3 m
PackedApolane130.966.Dutoit, 1991Column length: 3.7 m
CapillarySE-30110.965.Samusenko and Golovnya, 198825. m/0.32 mm/1. μm, He
CapillarySE-3080.957.Samusenko and Golovnya, 198825. m/0.32 mm/1. μm, He
CapillaryOV-101150.972.Morishita, Morimoto, et al., 1986N2; Column length: 20. m; Column diameter: 0.23 mm

Kovats' RI, polar column, isothermal

View large format table.

Column type Active phase Temperature (C) I Reference Comment
CapillaryPEG-40M110.1414.Golovnya, Samusenko, et al., 1987He; Column length: 50. m; Column diameter: 0.3 mm
CapillaryPEG-40M80.1390.Golovnya, Samusenko, et al., 1987He; Column length: 50. m; Column diameter: 0.3 mm

Van Den Dool and Kratz RI, non-polar column, temperature ramp

View large format table.

Column type Active phase I Reference Comment
CapillaryDB-Petro957.7Lu, Zhao, et al., 200450. m/0.2 mm/0.5 μm, 2. K/min; Tstart: 50. C; Tend: 220. C
CapillaryOV-1947.4Gautzsch and Zinn, 19968. K/min; Tstart: 35. C; Tend: 300. C
CapillaryOV-101963.Golovnya, Samusenko, et al., 1988He, 2. K/min; Column length: 50. m; Column diameter: 0.25 mm; Tstart: 100. C
CapillaryOV-101964.Golovnya, Samusenko, et al., 1988He, 8. K/min; Column length: 50. m; Column diameter: 0.25 mm; Tstart: 70. C
CapillaryOV-101963.Golovnya, Samusenko, et al., 1988He, 4. K/min; Column length: 50. m; Column diameter: 0.25 mm; Tstart: 80. C
CapillaryDB-5980.Premecz and Ford, 1987He, 60. C @ 10. min, 10. K/min, 280. C @ 3. min; Column length: 30. m; Column diameter: 0.32 mm
CapillaryDB-5970.Rostad and Pereira, 198630. m/0.26 mm/0.25 μm, He, 50. C @ 4. min, 6. K/min, 300. C @ 20. min

Van Den Dool and Kratz RI, polar column, temperature ramp

View large format table.

Column type Active phase I Reference Comment
CapillaryPEG-40M1415.Golovnya, Samusenko, et al., 198825. m/0.32 mm/0.80 μm, He, 2. K/min; Tstart: 100. C
CapillaryPEG-40M1419.Golovnya, Samusenko, et al., 198825. m/0.32 mm/0.80 μm, He, 8. K/min; Tstart: 70. C
CapillaryPEG-40M1410.Golovnya, Samusenko, et al., 198825. m/0.32 mm/0.80 μm, He, 4. K/min; Tstart: 80. C
CapillaryCAM1391.Premecz and Ford, 1987He, 60. C @ 5. min, 5. K/min, 240. C @ 21. min; Column length: 15. m; Column diameter: 0.24 mm

Normal alkane RI, non-polar column, temperature ramp

View large format table.

Column type Active phase I Reference Comment
CapillaryMethyl Silicone917.Lorenz, Stern, et al., 19834. K/min, 200. C @ 15. min; Column length: 25. m; Column diameter: 0.2 mm; Tstart: 50. C

Normal alkane RI, non-polar column, custom temperature program

View large format table.

Column type Active phase I Reference Comment
CapillarySE-30987.Li, Gao, et al., 2000Program: not specified
CapillaryDB-1951.Kawai, Ishida, et al., 199160. m/0.25 mm/0.25 μm; Program: not specified
CapillaryDB-1951.Kawai, Ishida, et al., 199160. m/0.25 mm/0.25 μm; Program: not specified

Normal alkane RI, polar column, custom temperature program

View large format table.

Column type Active phase I Reference Comment
CapillaryDB-Wax1400.Peng, Yang, et al., 1991Program: not specified
CapillaryCarbowax1405.Baltes and Bochmann, 1987Program: not specified
CapillaryCarbowax1408.Baltes and Bochmann, 1987Program: not specified
CapillaryCarbowax1408.Baltes and Bochmann, 1987Program: not specified
CapillaryCarbowax1410.Baltes and Bochmann, 1987Program: not specified

Lee's RI, non-polar column, temperature ramp

View large format table.

Column type Active phase I Reference Comment
CapillaryDB-5155.01Rostad and Pereira, 198630. m/0.26 mm/0.25 μm, He, 50. C @ 4. min, 6. K/min, 300. C @ 20. min

References

Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, 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]

Ramsey and Walker, 1974
Ramsey, B.G.; Walker, F.A., A linear relationship between substituted pyridine lone pair vertical ionization potentials and pKa, J. Am. Chem. Soc., 1974, 96, 3314. [all data]

Vickers, Kuhn, et al., 2003
Vickers, A.K.; Kuhn, E.; Lautamo, R., A novel, inert, low bleed column for GC-MS, 2003, retrieved from http://www.chem.agilent.com/cag/cabu/gcapps.htm. [all data]

Kuhn, 2001
Kuhn, E.R., Selectivity vs. polarity: the fundamentals of chromatographic separation, J. Sep. Sci., 2001, 24, 6, 473-476, https://doi.org/10.1002/1615-9314(20010601)24:6<473::AID-JSSC473>3.0.CO;2-Y . [all data]

Dallos, Sisak, et al., 2000
Dallos, A.; Sisak, A.; Kulcsár, Z.; Kováts, E., Pair-wise interactions by gas chromatography VII. Interaction free enthalpies of solutes with secondary alcohol groups, J. Chromatogr. A, 2000, 904, 2, 211-242, https://doi.org/10.1016/S0021-9673(00)00908-0 . [all data]

Golovnya, Kuz'menko, et al., 2000
Golovnya, R.V.; Kuz'menko, T.E.; Krikunova, N.I., The influence of alkyl substituents on the chromatographic indicator of self-association of N-containing heterocyclic compounds, Russ. Chem. Bull. (Engl. Transl.), 2000, 49, 2, 321-324, https://doi.org/10.1007/BF02494681 . [all data]

Reddy, Dutoit, et al., 1992
Reddy, K.S.; Dutoit, J.-Cl.; Kovats, E. sz., Pair-wise interactions by gas chromatography. I. Interaction free enthalpies of solutes with non-associated primary alcohol groups, J. Chromatogr., 1992, 609, 1-2, 229-259, https://doi.org/10.1016/0021-9673(92)80167-S . [all data]

Dutoit, 1991
Dutoit, J., Gas chromatographic retention behaviour of some solutes on structurally similar polar and non-polar stationary phases, J. Chromatogr., 1991, 555, 1-2, 191-204, https://doi.org/10.1016/S0021-9673(01)87179-X . [all data]

Samusenko and Golovnya, 1988
Samusenko, A.L.; Golovnya, R.V., Prediction of the retention indices of methyl pyridines and pyrazines in capillary gas chromatography based on the non-linear additivity of the sorption energy, Chromatographia, 1988, 25, 6, 531-535, https://doi.org/10.1007/BF02324828 . [all data]

Morishita, Morimoto, et al., 1986
Morishita, F.; Morimoto, S.; Kojima, T., Prediction of molecular structures of aza-arenes by retention indices and fluorescence spectra, J. Hi. Res. Chromatogr. Chromatogr. Comm., 1986, 9, 11, 688-692, https://doi.org/10.1002/jhrc.1240091120 . [all data]

Golovnya, Samusenko, et al., 1987
Golovnya, R.V.; Samusenko, A.L.; Dmitriev, L.B., Predicting retention indices of methyl-substituted pyridines in gas capillary chromatogrpahy on the basis of the principle of the nonadditive change in the energy of sorption, Izv. Akad. Nauk SSSR Ser. Khim., 1987, 10, 2234-2239. [all data]

Lu, Zhao, et al., 2004
Lu, X.; Zhao, M.; Kong, H.; Cai, J.; Wu, J.; Wu, M.; Hua, R.; Liu, J.; Xu, G., Characterization of cigarette smoke condensates by comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry (GC x GC/TOFMS) Part 2: Basic fraction, J. Sep. Sci., 2004, 27, 1-2, 101-109, https://doi.org/10.1002/jssc.200301659 . [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]

Golovnya, Samusenko, et al., 1988
Golovnya, R.V.; Samusenko, A.L.; Lyapin, V.A., Prediction of linear temperature programmed retention indices of methylpyridines in capillary gas chromatography, Zh. Anal. Khim., 1988, 63, 2, 311-317. [all data]

Premecz and Ford, 1987
Premecz, J.E.; Ford, M.E., Gas chromatographic separation of substituted pyridines, J. Chromatogr., 1987, 388, 23-35, https://doi.org/10.1016/S0021-9673(01)94463-2 . [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]

Lorenz, Stern, et al., 1983
Lorenz, G.; Stern, D.J.; Flath, R.A.; Haddon, W.F.; Tillin, S.J.; Teranishi, R., Identification of sheep liver volatiles, J. Agric. Food Chem., 1983, 31, 5, 1052-1057, https://doi.org/10.1021/jf00119a033 . [all data]

Li, Gao, et al., 2000
Li, R.; Gao, S.-G.; Xiang, B.-R., Using improved BP neural network in predicting GC retention indices, Computers appl. chem. (Chinese), 2000, 17, 1-2, 113-114. [all data]

Kawai, Ishida, et al., 1991
Kawai, T.; Ishida, Y.; Kakiuchi, H.; Ikeda, N.; Higashida, T.; Nakamura, S., Flavor components of dried squid, J. Agric. Food Chem., 1991, 39, 4, 770-777, https://doi.org/10.1021/jf00004a031 . [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]

Baltes and Bochmann, 1987
Baltes, W.; Bochmann, G., Model reactions on roast aroma formations, V. Mass spectrometric identification of pyrifines, oxazoles, and carbocyclic compounds from the reaction of serine and threonine with sucrose under the conditions of coffee roasting, Z. Lebensm. Unters. Forsch., 1987, 185, 1, 5-9, https://doi.org/10.1007/BF01083331 . [all data]


Notes

Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), Gas Chromatography, References