Benzonitrile, 4-amino-

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Phase change 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 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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Reaction thermochemistry 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 compiled by: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

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

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 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

IR Spectrum

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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

Gas Phase Spectrum

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IR spectrum
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Additional Data

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Owner SRD/NIST
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin EPA-IR VAPOR PHASE LIBRARY
State gas

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


Mass spectrum (electron ionization)

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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

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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UV/Visible spectrum

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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: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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UVVis spectrum
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Additional Data

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Source Abrams and Kallen, 1976
Owner INEP CP RAS, NIST OSRD
Collection (C) 2007 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS
Source reference RAS UV No. 17594
Instrument Cary 14
Melting point 86.5

References

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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]

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]

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]

Abrams and Kallen, 1976
Abrams, W.R.; Kallen, R.J., J. Am. Chem. Soc., 1976, 98, 7777. [all data]


Notes

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