Propanenitrile

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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 as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C3H5N+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)11.85 ± 0.02eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)189.8kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity182.4kcal/molN/AHunter and Lias, 1998HL

Electron affinity determinations

EA (eV) Reference Comment
0.015092 ± 0.000087Hammer, Diri, et al., 2003B

Ionization energy determinations

IE (eV) Method Reference Comment
11.5 ± 0.25EIChess, Lapp, et al., 1982LBLHLM
11.90PEKimura, Katsumata, et al., 1981LLK
11.85 ± 0.01PEStaley, Kleckner, et al., 1976LLK
11.85PELake and Thompson, 1970RDSH
11.84 ± 0.02PIWatanabe, Nakayama, et al., 1962RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CH2N+14.88?EIHeerma, deRidder, et al., 1969RDSH
C2H2+14.70?EIHeerma, deRidder, et al., 1969RDSH
C2H3+15.40?EIHeerma, deRidder, et al., 1969RDSH
C2H4+12.40 ± 0.05HCNEIFranklin, Wada, et al., 1966RDSH
C3H4N+13.00HEIHeerma, deRidder, et al., 1969RDSH
C3H4N+12.55 ± 0.05HEIFranklin, Wada, et al., 1966RDSH

De-protonation reactions

C3H4N- + Hydrogen cation = Propanenitrile

By formula: C3H4N- + H+ = C3H5N

Quantity Value Units Method Reference Comment
Δr375.0 ± 2.1kcal/molG+TSBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr367.4 ± 2.0kcal/molIMREBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B

C3H4N- + Hydrogen cation = Propanenitrile

By formula: C3H4N- + H+ = C3H5N

Quantity Value Units Method Reference Comment
Δr392.0 ± 5.1kcal/molG+TSMerrill, Dahlke, et al., 1996gas phase; comparable to H2O.; B
Quantity Value Units Method Reference Comment
Δr384.0 ± 5.0kcal/molIMRBMerrill, Dahlke, et al., 1996gas phase; comparable to H2O.; B

Vibrational and/or electronic energy levels

Go To: Top, Gas phase ion energetics data, 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: Takehiko Shimanouchi

Symmetry:   Cs     Symmetry Number σ = 1


 Sym.   No   Approximate   Selected Freq.  Infrared   Raman   Comments 
 Species   type of mode   Value   Rating   Value  Phase  Value  Phase

a' 1 CH3 d-str 3001  C 3001 VS liq. 2999 S liq. OV14)
a' 2 CH2 s-str 2955  C 2955 VS liq. 2949 VS p liq.
a' 3 CH3 s-str 2900  C 2900 S liq. 2898 S p liq.
a' 4 CN str 2254  C 2254 VS liq. 2251 VS p liq.
a' 5 CH3 d-deform 1465  C 1465 S liq. 1466 VS p liq. SF16)
a' 6 CH2 scis 1433  C 1433 S liq. 1436 M p liq.
a' 7 CH3 s-deform 1387  C 1387 M liq. 1374 VW p liq.
a' 8 CH2 wag 1319  C 1319 M liq. 1322 W p liq.
a' 9 C-CN str 1077  C 1077 S liq. 1078 M p liq.
a' 10 CC str 1005  C 1005 M liq. 1010 S p liq.
a' 11 CH3 rock 836  C 836 W liq. 838 S p liq.
a' 12 CCC deform 545  C 545 M liq. 548 M p liq.
a' 13 CCN bend 226  C 226 M liq. 226 M p liq.
a 14 CH3 d-str 3001  C 3001 VS liq. 2999 S liq. OV1)
a 15 CH2 a-str 2849  C 2849 S liq. 2850 M liq.
a 16 CH3 d-deform 1465  C 1465 S liq. 1466 VS dp liq. SF5)
a 17 CH2 twist 1256  C 1256 VW liq. 1270 VW dp liq.
a 18 CH3 rock 1022  E CF
a 19 CH2 rock 786  C 786 M liq. 784 VW dp liq.
a 20 CCN bend 378  C 378 M liq. 378 M dp liq.
a 21 Torsion 222  C MW

Source: Shimanouchi, 1972

Notes

VSVery strong
SStrong
MMedium
WWeak
VWVery weak
pPolarized
dpDepolarized
CFCalculated frequency
SFCalculation shows that the frequency approximately equals that of the vibration indicated in the parentheses.
OVOverlapped by band indicated in parentheses.
MWTorsional Frequency calculated from microwave spectroscopic data.
C3~6 cm-1 uncertainty
E15~30 cm-1 uncertainty

References

Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, 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]

Hammer, Diri, et al., 2003
Hammer, N.I.; Diri, K.; Jordan, K.D.; Desfrancois, C.; Compton, R.N., Dipole-bound anions of carbonyl, nitrile, and sulfoxide containing molecules, J. Chem. Phys., 2003, 119, 7, 3650-3660, https://doi.org/10.1063/1.1590959 . [all data]

Chess, Lapp, et al., 1982
Chess, E.K.; Lapp, R.L.; Gross, M.L., The question of tautomerism of alkylnitrile and isonitrile radical cations, Org. Mass Spectrom., 1982, 17, 475. [all data]

Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S., Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]

Staley, Kleckner, et al., 1976
Staley, R.H.; Kleckner, J.E.; Beauchamp, J.L., Relationship between orbital ionization energies and molecular properties. Proton affinities and photoelectron spectra of nitriles, J. Am. Chem. Soc., 1976, 98, 2081. [all data]

Lake and Thompson, 1970
Lake, R.F.; Thompson, H., The photoelectron spectra of some molecules containing the C N group, Proc. Roy. Soc. (London), 1970, A317, 187. [all data]

Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J., Ionization potentials of some molecules, J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]

Heerma, deRidder, et al., 1969
Heerma, W.; deRidder, J.J.; Dijkstra, G., The electron-impact-induced fragmentation of n-alkyl cyanides, Org. Mass Spectrom., 1969, 2, 1103. [all data]

Franklin, Wada, et al., 1966
Franklin, J.L.; Wada, Y.; Natalis, P.; Hierl, P.M., Ion-molecule reactions in acetonitrile and propionitrile, J. Phys. Chem., 1966, 70, 2353. [all data]

Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr., The gas phase acidity scale from methanol to phenol, J. Am. Chem. Soc., 1979, 101, 6047. [all data]

Merrill, Dahlke, et al., 1996
Merrill, G.N.; Dahlke, G.D.; Kass, S.R., beta-Cyanoethyl Anion: Lusus Naturae, J. Am. Chem. Soc., 1996, 118, 18, 4462, https://doi.org/10.1021/ja953796o . [all data]

Shimanouchi, 1972
Shimanouchi, T., Tables of Molecular Vibrational Frequencies Consolidated Volume I, National Bureau of Standards, 1972, 1-160. [all data]


Notes

Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References