Benzonitrile, 4-amino-

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Phase change data

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: Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

Quantity Value Units Method Reference Comment
Tfus359.4KN/ACurran and Estok, 1950Uncertainty assigned by TRC = 0.5 K

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Gas phase ion energetics data

Go To: Top, Phase change 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 as indicated in comments:
B - John E. Bartmess
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

IE (eV) Method Reference Comment
8.17PEModelli and Distefano, 1981LLK
8.64 ± 0.04EIBuchs, 1970RDSH
8.51PEModelli and Distefano, 1981Vertical value; LLK

De-protonation reactions

C7H5N2- + Hydrogen cation = Benzonitrile, 4-amino-

By formula: C7H5N2- + H+ = C7H6N2

Quantity Value Units Method Reference Comment
Δr1459. ± 8.8kJ/molG+TSTaft and Topsom, 1987gas phase; value altered from reference due to change in acidity scale; B
Quantity Value Units Method Reference Comment
Δr1429. ± 8.4kJ/molIMRETaft and Topsom, 1987gas phase; value altered from reference due to change in acidity scale; B

Mass spectrum (electron ionization)

Go To: Top, Phase change data, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Mass spectrum
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Additional Data

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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-1974
NIST MS number 233949

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References

Go To: Top, Phase change data, Gas phase ion energetics data, 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.

Curran and Estok, 1950
Curran, B.C.; Estok, G.K., The Stabilization of Highly Polar Resonacne Structures by Hydrogen Bonding I. Electric Moments, J. Am. Chem. Soc., 1950, 72, 4575. [all data]

Modelli and Distefano, 1981
Modelli, A.; Distefano, G., L. C. B. O.: An easy method to predict valence ionization energies. Application to substituted benzenes, Z. Naturforsch. A:, 1981, 36, 1344. [all data]

Buchs, 1970
Buchs, A., Etude par spectrometrie de masse de l'ionisation de benzonitriles, de phenylacetonitriles et de N,N-dimethylanilines substitues, Helv. Chim. Acta, 1970, 53, 2026. [all data]

Taft and Topsom, 1987
Taft, R.W.; Topsom, R.D., The Nature and Analysis of Substituent Effects, Prog. Phys. Org. Chem., 1987, 16, 1. [all data]


Notes

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