Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

NOTICE: Due to scheduled maintenance at our Gaithersburg campus, this site will not be available from 5:00 pm EDT (21:00 UTC) on Friday October 25 until 5:00 pm (21:00 UTC) on Sunday October 27. We apologize for any inconvenience this outage may cause.

Pyridine, 2-ethyl-

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.


Condensed phase thermochemistry data

Go To: Top, Phase change data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltafliquid1.5kJ/molCcbBalandin, Klabunovsky, et al., 1960 
Quantity Value Units Method Reference Comment
Deltacliquid-4042.3kJ/molCcbBalandin, Klabunovsky, et al., 1960 

Phase change data

Go To: Top, Condensed phase thermochemistry data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, 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 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
Tboil421.8KN/AWeast and Grasselli, 1989BS
Tboil423.15KN/AKyte, Jeffery, et al., 1960Uncertainty assigned by TRC = 1.5 K; TRC
Tboil422.05KN/APetro and Smyth, 1957Uncertainty assigned by TRC = 0.4 K; TRC
Tboil422.KN/ACook and Church, 1956Uncertainty assigned by TRC = 3. K; value taken from Reilly Tar & Chemical Co.; TRC
Tboil417.KN/AGregg and Craig, 1948Uncertainty assigned by TRC = 4. K; TRC
Quantity Value Units Method Reference Comment
Tfus210.05KN/ABrown and Murphey, 1951Uncertainty assigned by TRC = 0.5 K; TRC
Quantity Value Units Method Reference Comment
Deltavap44.7 ± 0.8kJ/molCMorais, Miranda, et al., 2003AC

Enthalpy of vaporization

DeltavapH (kJ/mol) Temperature (K) Method Reference Comment
43.7338.AStephenson and Malanowski, 1987Based on data from 323. - 373. K. See also Kkykj and Repas, 1973.; AC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Henry's Law data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, 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: Rolf Sander

Henry's Law constant (water solution)

kH(T) = H exp(d(ln(kH))/d(1/T) ((1/T) - 1/(298.15 K)))
H = Henry's law constant for solubility in water at 298.15 K (mol/kg*bar)
d(ln(kH))/d(1/T) = Temperature dependence constant (K)

H (mol/kg*bar) d(ln(kH))/d(1/T) (K) Method Reference
60.6700.MN/A

Gas phase ion energetics data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Henry's Law data, IR Spectrum, 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 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)952.4kJ/molN/AHunter and Lias, 1998 
Quantity Value Units Method Reference Comment
Gas basicity920.6kJ/molN/AHunter and Lias, 1998 

IR Spectrum

Go To: Top, Condensed phase thermochemistry data, Phase change data, Henry's Law data, 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

Gas Phase Spectrum

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

IR 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

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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

View spectrum image in SVG format.

Download spectrum in JCAMP-DX format.

Owner NIST Standard Reference Data Program
Collection (C) 2018 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
State gas
Instrument HP-GC/MS/IRD

This IR spectrum is from the NIST/EPA Gas-Phase Infrared Database .


Mass spectrum (electron ionization)

Go To: Top, Condensed phase thermochemistry data, Phase change data, Henry's Law 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

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).

View spectrum image in SVG format.

Download spectrum in JCAMP-DX format.

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-IW- 363
NIST MS number 227541

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.


References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Balandin, Klabunovsky, et al., 1960
Balandin, A.A.; Klabunovsky, E.I.; Oberemok-Yakubova, A.P.; Brusov, I.I., Thermochemical determination of the heat of combustion of 2-ethyl- and 2-vinylpyrydines, Izv. Akad. Nauk SSSR, Ser. Khim., 1960, 784-786. [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]

Kyte, Jeffery, et al., 1960
Kyte, C.T.; Jeffery, G.H.; Vogel, A.I., Physical Properties and Chem. Constitution XXVII. Pyridine Derivatives, J. Chem. Soc., 1960, 1960, 4454. [all data]

Petro and Smyth, 1957
Petro, A.J.; Smyth, C.P., Microwave absorption and molecular structure in liquids. XX. dielectric relaxation times and molecular shapes of some substituted benzenes and pyridines, J. Am. Chem. Soc., 1957, 79, 6142. [all data]

Cook and Church, 1956
Cook, G.L.; Church, F.M., Anal. Chem., 1956, 28, 993-5. [all data]

Gregg and Craig, 1948
Gregg, E.C.; Craig, D., 2-Ethylpyridine and Derivatifes, J. Am. Chem. Soc., 1948, 70, 3138. [all data]

Brown and Murphey, 1951
Brown, H.C.; Murphey, W.A., A convenient synthesis of the monoalkylpyridines; a new prototropic reaction of 3-picoline, J. Am. Chem. Soc., 1951, 73, 3308. [all data]

Morais, Miranda, et al., 2003
Morais, Victor M.F.; Miranda, Margarida S.; Matos, M. Agostinha R., Thermochemical study of the ethylpyridine and ethylpyrazine isomers, Org. Biomol. Chem., 2003, 1, 23, 4329-712, https://doi.org/10.1039/b308097h . [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]

Kkykj and Repas, 1973
Kkykj, J.; Repas, M., Petrochemia, 1973, 13, 179. [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]


Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, Henry's Law data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), References