Pyridine, 2-ethyl-

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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 evaluated by: Edward P. Hunter and Sharon G. Lias

View reactions leading to C7H9N+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
Proton affinity (review)227.6kcal/molN/AHunter and Lias, 1998 
Quantity Value Units Method Reference Comment
Gas basicity220.0kcal/molN/AHunter and Lias, 1998 

Gas Chromatography

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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

Kovats' RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
PackedC78, Branched paraffin130.886.9Dallos, Sisak, et al., 2000He; Column length: 3.3 m
PackedC78, Branched paraffin130.886.9Reddy, Dutoit, et al., 1992Chromosorb G HP; Column length: 3.3 m
PackedApolane130.888.Dutoit, 1991Column length: 3.7 m
PackedOV-1120.895.Valko, Papp, et al., 1984Gas Chrom Q; Column length: 2. m
PackedApiezon L130.914.Shatts, Avots, et al., 1977He, Chromosorb W AW-DMCS; Column length: 2.4 m
PackedApolane70.871.8Riedo, Fritz, et al., 1976He, Chromosorb; Column length: 2.4 m
PackedApiezon L110.901.Bark and Wheatstone, 1974N2, Chromosorb W AW-DCMS; Column length: 2. m
PackedApiezon L130.908.Bark and Wheatstone, 1974N2, Chromosorb W AW-DCMS; Column length: 2. m
PackedApiezon L150.916.Bark and Wheatstone, 1974N2, Chromosorb W AW-DCMS; Column length: 2. m

Kovats' RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryDB-1881.Takeoka, Perrino, et al., 199660. m/0.25 mm/0.25 μm, 30. C @ 4. min, 2. K/min; Tend: 220. C
CapillaryDB-1881.Takeoka, Perrino, et al., 199660. m/0.25 mm/0.25 μm, 30. C @ 4. min, 2. K/min; Tend: 220. C

Kovats' RI, polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
PackedCarbowax 20M100.1288.Bark and Wheatstone, 1974N2, Chromosorb W AW-DCMS; Column length: 2. m
PackedCarbowax 20M110.1290.Bark and Wheatstone, 1974N2, Chromosorb W AW-DCMS; Column length: 2. m
PackedCarbowax 20M90.1284.Bark and Wheatstone, 1974N2, Chromosorb W AW-DCMS; Column length: 2. m

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

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Column type Active phase I Reference Comment
CapillaryDB-5906.Methven L., Tsoukka M., et al., 200760. m/0.32 mm/1. μm, 40. C @ 2. min, 4. K/min, 260. C @ 10. min
CapillaryDB-Petro884.4Lu, Zhao, et al., 200450. m/0.2 mm/0.5 μm, 2. K/min; Tstart: 50. C; Tend: 220. C
CapillaryCP Sil 8 CB919.Elmore, Campo, et al., 200260. m/0.25 mm/0.25 μm, He, 40. C @ 2. min, 4. K/min; Tend: 280. C
CapillaryBPX-5919.Ames, Guy, et al., 200150. m/0.32 mm/0.25 μm, He, 60. C @ 5. min, 4. K/min, 250. C @ 10. min
CapillaryOV-1879.4Gautzsch and Zinn, 19968. K/min; Tstart: 35. C; Tend: 300. C
CapillaryDB-1951.Yu, Lin, et al., 199460. m/0.25 mm/1.0 μm, He, 40. C @ 5. min, 2. K/min, 260. C @ 60. min
CapillaryDB-5905.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-5901.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, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryCP-Sil 8CB-MS910.Elmore, Mottram, et al., 200060. m/0.25 mm/0.25 μm, He; Program: 0C(5min) => 40C/min => 40C (2min) => 4C/min => 280C

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

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Column type Active phase I Reference Comment
CapillaryDB-Wax1311.Shimoda, Peralta, et al., 199660. m/0.25 mm/0.25 μm, He, 3. K/min; Tstart: 50. C; Tend: 230. C
CapillaryCAM1282.Premecz and Ford, 1987He, 60. C @ 5. min, 5. K/min, 240. C @ 21. min; Column length: 15. m; Column diameter: 0.24 mm

Van Den Dool and Kratz RI, polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillarySupelcowax-101277.Baek and Cadwallader, 199660. m/0.25 mm/0.25 μm; Program: 40C => (6C/min) => 80C(6min) => (15C/min) => 200C(10min)

Normal alkane RI, non-polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryHP-5905.7Leffingwell and Alford, 200560. m/0.32 mm/0.25 μm, He, 30. C @ 2. min, 2. K/min, 260. C @ 28. min
CapillaryHP-5904.Kubec, Drhová, et al., 199930. m/0.25 mm/0.25 μm, N2, 40. C @ 3. min, 4. K/min, 240. C @ 10. min
CapillaryDB-1863.Ishihara, Tsuneya, et al., 199260. m/0.25 mm/0.25 μm, He, 50. C @ 5. min, 3. K/min; Tend: 240. C
CapillaryDB-1866.Ishihara, Tsuneya, et al., 199260. m/0.25 mm/0.25 μm, He, 50. C @ 5. min, 3. K/min; Tend: 240. C
CapillaryDB-5912.Lee, Macku, et al., 199160. m/0.25 mm/0.25 μm, 40. C @ 5. min, 2. K/min; Tend: 250. C
CapillaryDB-5908.Macku and Shibamoto, 1991He, 40. C @ 5. min, 2. K/min; Column length: 60. m; Column diameter: 0.25 mm; Tend: 160. C

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

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Column type Active phase I Reference Comment
CapillaryTR-5 MS910.Kurashov, Mitrukova, et al., 201415. m/0.25 mm/0.25 μm, Helium; Program: 35 0C (3 min) 2 0C/min -> 60 0C (3 min) 2 0C/min -> 80 0C (3 min) 4 0C/min -> 120 0C (3 min) 5 0C/min -> 150 0C (3 min) 15 0C/min -> 240 0C (10 min)
CapillarySE-30915.Li, Gao, et al., 2000Program: not specified

Normal alkane RI, polar column, temperature ramp

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Column type Active phase I Reference Comment
CapillaryTC-Wax1286.Fukami, Ishiyama, et al., 200260. m/0.25 mm/0.25 μm, He, 2. K/min; Tstart: 50. C; Tend: 230. C
CapillaryHP-Innowax1279.Kubec, Drhová, et al., 199930. m/0.25 mm/0.25 μm, He, 40. C @ 3. min, 4. K/min, 190. C @ 10. min
CapillaryDB-Wax1279.Horiuchi, Umano, et al., 199860. m/0.25 mm/1. μm, He, 3. K/min, 200. C @ 40. min; Tstart: 50. C
CapillaryDB-Wax1284.Umano, Hagi, et al., 1995He, 40. C @ 2. min, 2. K/min; Column length: 60. m; Column diameter: 0.25 mm; Tend: 200. C
CapillaryCarbowax 20M1267.Vernin, Metzger, et al., 1992He, 3. K/min; Column length: 50. m; Column diameter: 0.33 mm; Tstart: 60. C; Tend: 200. C

Normal alkane RI, polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryDB-Wax1282.Kim. J.H., Ahn, et al., 200460. m/0.25 mm/0.25 μm, Helium; Program: 60 0C (3 min) 2 0C/min -> 150 0C 4 0C/min -> 200 0C
CapillaryCarbowax1272.Baltes and Bochmann, 1987Program: not specified
CapillaryCarbowax1273.Baltes and Bochmann, 1987Program: not specified
CapillaryCarbowax1274.Baltes and Bochmann, 1987Program: not specified
CapillaryCarbowax1274.Baltes and Bochmann, 1987Program: not specified
CapillaryCarbowax1275.Baltes and Bochmann, 1987Program: not specified
CapillaryCarbowax1275.Baltes and Bochmann, 1987Program: not specified
CapillaryCarbowax1275.Baltes and Bochmann, 1987Program: not specified

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

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Column type Active phase I Reference Comment
CapillaryDB-5140.78Rostad 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, 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]

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]

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]

Valko, Papp, et al., 1984
Valko, K.; Papp, O.; Darvas, F., Selection of Gas Chromatographic Stationary Phase Pairs for Characterization of the 1-Octanol-Water Partition Coefficient, J. Chromatogr., 1984, 301, 355-364, https://doi.org/10.1016/S0021-9673(01)89210-4 . [all data]

Shatts, Avots, et al., 1977
Shatts, V.D.; Avots, A.A.; Belikov, V.A., Retention indices of alkylpyridines, Zh. Anal. Khim., 1977, 32, 4, 631-638. [all data]

Riedo, Fritz, et al., 1976
Riedo, F.; Fritz, D.; Tarján, G.; Kováts, E.Sz., A tailor-made C87 hydrocarbon as a possible non-polar standard stationary phase for gas chromatography, J. Chromatogr., 1976, 126, 63-83, https://doi.org/10.1016/S0021-9673(01)84063-2 . [all data]

Bark and Wheatstone, 1974
Bark, L.S.; Wheatstone, K.C., Studies in the relationship between molecular structure and chromatographic behaviour. Gas chromatographic study of monoalkylpyridines, J. Chromatogr., 1974, 92, 2, 281-289, https://doi.org/10.1016/S0021-9673(00)85738-6 . [all data]

Takeoka, Perrino, et al., 1996
Takeoka, G.; Perrino, C., Jr.; Buttery, R., Volatile constituents of used frying oils, J. Agric. Food Chem., 1996, 44, 3, 654-660, https://doi.org/10.1021/jf950430m . [all data]

Methven L., Tsoukka M., et al., 2007
Methven L.; Tsoukka M.; Oruna-Concha M.J.; Parker J.K.; Mottram D.S., Influence of sulfur amino acids on the volatile and nonvolatile components of cooked salmon (Salmo salar), J. Agric. Food Chem., 2007, 55, 4, 1427-1436, https://doi.org/10.1021/jf0625611 . [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]

Elmore, Campo, et al., 2002
Elmore, J.S.; Campo, M.M.; Enser, M.; Mottram, D.S., Effect of lipid composition on meat-like model systems containing cysteine, ribose, and polyunsaturated fatty acids, J. Agric. Food Chem., 2002, 50, 5, 1126-1132, https://doi.org/10.1021/jf0108718 . [all data]

Ames, Guy, et al., 2001
Ames, J.M.; Guy, R.C.E.; Kipping, G.J., Effect of pH, temperature, and moisture on the formation of volatile compounds in glycine/glucose model systems, J. Agric. Food Chem., 2001, 49, 9, 4315-4323, https://doi.org/10.1021/jf010198m . [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]

Yu, Lin, et al., 1994
Yu, T.-H.; Lin, L.-Y.; Ho, C.-T., Volatile compounds of blanched, fried blanched, and baked blanched garlic slices, J. Agric. Food Chem., 1994, 42, 6, 1342-1347, https://doi.org/10.1021/jf00042a018 . [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]

Elmore, Mottram, et al., 2000
Elmore, J.S.; Mottram, D.S.; Enser, M.; Wood, J.D., The effects of diet and breed on the volatile compounds of cooked lamb, Meat Sci., 2000, 55, 2, 149-159, https://doi.org/10.1016/S0309-1740(99)00137-0 . [all data]

Shimoda, Peralta, et al., 1996
Shimoda, M.; Peralta, R.R.; Osajima, Y., Headspace gas analysis of fish sauce, J. Agric. Food Chem., 1996, 44, 11, 3601-3605, https://doi.org/10.1021/jf960345u . [all data]

Baek and Cadwallader, 1996
Baek, H.H.; Cadwallader, K.R., Volatile compounds in flavor concentrates produced from crayfish-processing byproducts with and without protease treatment, J. Agric. Food Chem., 1996, 44, 10, 3262-3267, https://doi.org/10.1021/jf960023q . [all data]

Leffingwell and Alford, 2005
Leffingwell, J.C.; Alford, E.D., Volatile constituents of Perique tobacco, Electron. J. Environ. Agric. Food Chem., 2005, 4, 2, 899-915. [all data]

Kubec, Drhová, et al., 1999
Kubec, R.; Drhová, V.; Velísek, J., Volatile compounds thermally generated from S-propylcysteine and S-propylcysteine sulfoxide - aroma precursors of Allium vegetables, J. Agric. Food Chem., 1999, 47, 3, 1132-1138, https://doi.org/10.1021/jf980974z . [all data]

Ishihara, Tsuneya, et al., 1992
Ishihara, M.; Tsuneya, T.; Shiga, M.; Kawashima, S.; Yamagishi, K.; Yoshida, F.; Sato, H.; Uneyama, K., New pyridine derivatives and basic components in spearmint oil (Mentha gentilis f. cardiaca) and peppermint oil (Mentha piperita), J. Agric. Food Chem., 1992, 40, 9, 1647-1655, https://doi.org/10.1021/jf00021a034 . [all data]

Lee, Macku, et al., 1991
Lee, S.-R.; Macku, C.; Shibamoto, T., Isolation and identification of headspace volatiles formed in heated butter, J. Agric. Food Chem., 1991, 39, 11, 1972-1975, https://doi.org/10.1021/jf00011a017 . [all data]

Macku and Shibamoto, 1991
Macku, C.; Shibamoto, T., Headspace volatile compounds formed from heated corn oil and corn oil with glycine, J. Agric. Food Chem., 1991, 39, 7, 1265-1269, https://doi.org/10.1021/jf00007a014 . [all data]

Kurashov, Mitrukova, et al., 2014
Kurashov, E.A.; Mitrukova, G.G.; Krylova, Yu.V., Variations in the component composition of essential oil of Ceratophyllum demersum (Ceratophyllaceae) during vegetation (in press), Plant Resources (Rastitel'nye Resursy), 2014, 1, 000-000. [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]

Fukami, Ishiyama, et al., 2002
Fukami, K.; Ishiyama, S.; Yaguramaki, H.; Masuzawa, T.; Nabeta, Y.; Endo, K.; Shimoda, M., Identification of distinctive volatile compounds in fish sauce, J. Agric. Food Chem., 2002, 50, 19, 5412-5416, https://doi.org/10.1021/jf020405y . [all data]

Horiuchi, Umano, et al., 1998
Horiuchi, M.; Umano, K.; Shibamoto, T., Analysis of volatile compounds formed from fish oil heated with cysteine and trimethylamine oxide, J. Agric. Food Chem., 1998, 46, 12, 5232-5237, https://doi.org/10.1021/jf980482m . [all data]

Umano, Hagi, et al., 1995
Umano, K.; Hagi, Y.; Nakahara, K.; Shyoji, A.; Shibamoto, T., Volatile chemicals formed in the headspace of a heated D-glucose/L-cysteine Maillard model system, J. Agric. Food Chem., 1995, 43, 8, 2212-2218, https://doi.org/10.1021/jf00056a046 . [all data]

Vernin, Metzger, et al., 1992
Vernin, G.; Metzger, J.; Boniface, C.; Murello, M.-H.; Siouffi, A.; Larice, J.-L.; Parkanyi, C., Kinetics and thermal degradation of the fructose-methionine Amadori intermediates. GC-MS/SPECMA data bank identification of volatile aroma compounds, Carbohyd. Res., 1992, 230, 1, 15-29, https://doi.org/10.1016/S0008-6215(00)90510-X . [all data]

Kim. J.H., Ahn, et al., 2004
Kim. J.H.; Ahn, H.J.; Yook, H.S.; Kim, K.S.; Rhee, M.S.; Ryu, G.H.; Byun, M.W., Color, flavor, and sensory characteristics of gamma-irradiated salted and fermented anchovy sauce, Radiation Phys. Chem., 2004, 69, 2, 179-187, https://doi.org/10.1016/S0969-806X(03)00400-6 . [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, Gas Chromatography, References