o-Chloroaniline

• Formula: C₆H₆ClN
• Molecular weight: 127.572
• IUPAC Standard InChI: InChI=1S/C6H6ClN/c7-5-3-1-2-4-6(5)8/h1-4H,8H2 Copy

  
• IUPAC Standard InChIKey: AKCRQHGQIJBRMN-UHFFFAOYSA-N Copy
• CAS Registry Number: 95-51-2
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: Benzenamine, 2-chloro-; Aniline, o-chloro-; Fast Yellow GC Base; 1-Amino-2-chlorobenzene; 2-Chloroaniline; 2-Chlorobenzenamine; o-Aminochlorobenzene; o-Chloroaminobenzene; Azoic diazo component 44, base; o-Chloraniline; Benzeneamine, 2-chloro-; 2-Chlorophenylamine; NSC 6183
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• Information on this page:
  • Condensed phase thermochemistry data
  • Phase change data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
  • References
  • Notes
• Other data available:
  • Gas Chromatography
• Data at other public NIST sites:
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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Condensed phase 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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 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

Enthalpy of vaporization

Antoine Equation Parameters

log₁₀(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Enthalpy of fusion

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:
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 C₆H₆ClN⁺ (ion structure unspecified)

Ionization energy determinations

Appearance energy determinations

IR Spectrum

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Data compiled by: Coblentz Society, Inc.

• LIQUID (NEAT); BECKMAN IR-4 (HYBRID PRISM-GRATING); DIGITIZED BY NIST FROM HARD COPY; 4 cm^-1 resolution
• SOLUTION (10% CCl4 FOR 3800-1340, 10% CS2 FOR 1340-450 CM^-1); DOW KBr FOREPRISM-GRATING; DIGITIZED BY COBLENTZ SOCIETY (BATCH I) FROM HARD COPY; 2 cm^-1 resolution
• SOLUTION (10% IN CCl4 FOR 4000-1330 CM^-1, 10% IN CS2 FOR 1330-600 CM^-1); BECKMAN IR-7 (GRATING); DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS); 4 cm^-1 resolution

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

• gas

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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Additional Data

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, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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Additional Data

References

Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Notes

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

Masalitinova, Oleinikova, et al., 1981
Masalitinova, T.N.; Oleinikova, T.P.; Ryadnenko, V.L.; Kiseleva, N.N.; Lebedeva, N.D., Thermal effects of the hydrogenation of chloronitrobenzenes, J. Appl. Chem. USSR, 1981, 54, 1551-1554, In original 1799. [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]

Pawlowski and Wieckowska, 1980
Pawlowski, W.; Wieckowska, E., Distribution Studies on Ternary System Water--Benzene--Chloro- or Nitroaniline, Pol. J. Chem., 1980, 54, 543. [all data]

Dreisbach and Martin, 1949
Dreisbach, R.R.; Martin, R.A., Physical Data on Some Organic Compounds, Ind. Eng. Chem., 1949, 41, 2875-8. [all data]

Sidgwick and Rubie, 1921
Sidgwick, N.V.; Rubie, H.E., The solubility and volatility of the chloro- and nitro-anilines and of their acetyl derivatives, J. Chem. Soc., 1921, 119, 1013-24. [all data]

Ribeiro da Silva, Gomes, et al., 2005
Ribeiro da Silva, Manuel A.V.; Gomes, José R.B.; Ferreira, Ana I.M.C.L., Experimental and Computational Investigation of the Energetics of the Three Isomers of Monochloroaniline, J. Phys. Chem. B, 2005, 109, 27, 13356-13362, https://doi.org/10.1021/jp0519565 . [all data]

Verevkin and Schick, 2003
Verevkin, Sergey P.; Schick, Christoph, Determination of vapor pressures, enthalpies of sublimation, enthalpies of vaporization, and enthalpies of fusion of a series of chloro-aminobenzenes and chloro-nitrobenzenes, Fluid Phase Equilibria, 2003, 211, 2, 161-177, https://doi.org/10.1016/S0378-3812(03)00181-X . [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]

Piacente, Scardala, et al., 1985
Piacente, V.; Scardala, P.; Ferro, D.; Gigli, R., Vaporization study of o-, m-, and p-chloroaniline by torsion-weighing effusion vapor pressure measurements, J. Chem. Eng. Data, 1985, 30, 4, 372-376, https://doi.org/10.1021/je00042a002 . [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Straka, Ruzicka, et al., 2007
Straka, Martin; Ruzicka, Kvetoslav; Ruzicka, Vlastimil, Heat Capacities of Chloroanilines and Chloronitrobenzenes, J. Chem. Eng. Data, 2007, 52, 4, 1375-1380, https://doi.org/10.1021/je700080k . [all data]

Khanna, Khetarpal, et al., 1983
Khanna, M.S.; Khetarpal, S.C.; Lal, K.; Bhatnagar, H.L., Thermodynamic studies on melting of some o-, m-, and p-halogen derivatives of aniline, Indian J. Pure Appl. Phys., 1983, 20, 6, 503. [all data]

Baldwin, Loudon, et al., 1976
Baldwin, M.A.; Loudon, A.G.; Maccoll, A.; Webb, K.S., The nature and fragmentation pathways of the molecular ions of some arylureas, arylthioureas, acetanilides, thioacetanilides and related compounds, Org. Mass Spectrom., 1976, 11, 1181. [all data]

Briegleb and Czekalla, 1959
Briegleb, G.; Czekalla, J., Die Bestimmung von lonisierungsenergien aus den Spektren von Elektronenubergangskomplexen, Z.Elektrochem., 1959, 63, 6. [all data]

Grammaticakis, 1949
Grammaticakis, P., Contribution a l'etude de l'absorption dans l'ultraviolet moyen des anilines orthosubstituees. II. Ortho-halogenanilines N-substituees, Bull. Soc. Chim. Fr., 1949, 16, 761. [all data]

Notes

Go To: Top, Condensed phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, References

• Symbols used in this document:
  

  AE	Appearance energy
  Tboil	Boiling point
  Tfus	Fusion (melting) point
  ΔcH°liquid	Enthalpy of combustion of liquid at standard conditions
  ΔfH°liquid	Enthalpy of formation of liquid at standard conditions
  ΔfusH	Enthalpy of fusion
  ΔvapH	Enthalpy of vaporization
  ΔvapH°	Enthalpy of vaporization at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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