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Cyanogen chloride


Gas 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.

Quantity Value Units Method Reference Comment
Deltafgas32.971kcal/molReviewChase, 1998Data last reviewed in June, 1966
Quantity Value Units Method Reference Comment
gas,1 bar56.484cal/mol*KReviewChase, 1998Data last reviewed in June, 1966

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. - 600.600. - 6000.
A 4.52271113.13490
B 32.271301.418571
C -47.76840-0.259960
D 27.263000.019641
E 0.017722-0.482587
F 30.6142027.62290
G 54.3175069.93279
H 32.9699132.96991
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1966 Data last reviewed in June, 1966

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

Quantity Value Units Method Reference Comment
Deltafsolid32.9 ± 1.0kcal/molCmLord and Woolf, 1954Reanalyzed by Cox and Pilcher, 1970, Original value = 31.6 kcal/mol; Heat of Hydrolysis

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:
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Reference Comment
7.70271.Stull, 1947Based on data from 196. - 286. K.; AC

Antoine Equation Parameters

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

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Temperature (K) A B C Reference Comment
196.5 - 286.34.656061074.1-54.458Stull, 1947Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

DeltasubH (kcal/mol) Temperature (K) Method Reference Comment
8.53228.AStull, 1947Based on data from 196. - 259. K.; AC

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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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

2Sodium hydroxide + Cyanogen chloride = sodium chloride + Water + CNO.Na

By formula: 2HNaO + CClN = ClNa + H2O + CNO.Na

Quantity Value Units Method Reference Comment
Deltar-66.3 ± 0.1kcal/molCmLord and Woolf, 1954solid phase; Heat of Hydrolysis

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:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Quantity Value Units Method Reference Comment
IE (evaluated)12.36 ± 0.02eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)172.6kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity165.3kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
12.37PELake and Thompson, 1970RDSH
12.34PELake and Thompson, 1970RDSH
12.37 ± 0.02PEHeilbronner, Hornung, et al., 1970RDSH
12.34 ± 0.01PIDibeler and Liston, 1967RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CCl+17.2 ± 0.2NEIHerron and Dibeler, 1960RDSH
CN+18.50 ± 0.02ClPIDibeler and Liston, 1967RDSH
CN+18.3 ± 0.2ClEIHerron and Dibeler, 1960RDSH
CN+15.5 ± 0.2Cl-EIHerron and Dibeler, 1960RDSH
Cl+17.32 ± 0.02CNPIDibeler and Liston, 1967RDSH
Cl+13.6 ± 0.1CN-EIHerron and Dibeler, 1960RDSH

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

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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.
NIST MS number 173

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References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry 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.

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Lord and Woolf, 1954
Lord, G.; Woolf, A.A., The cyanogen halides. Part III. Their heats of formation and free energies, J. Chem. Soc., 1954, 2546-2551. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [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]

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]

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]

Heilbronner, Hornung, et al., 1970
Heilbronner, E.; Hornung, V.; Muszkat, K.A., Die Photoelektron-Spektren von Chlor-, Brom- und Jodcyan, Helv. Chim. Acta, 1970, 53, 347. [all data]

Dibeler and Liston, 1967
Dibeler, V.H.; Liston, S.K., Mass-spectrometric study of photoionization. VIII.Dicyanogen and the cyanogen halides, J. Chem. Phys., 1967, 47, 4548. [all data]

Herron and Dibeler, 1960
Herron, J.T.; Dibeler, V.H., Electron impact study of the cyanogen halides, J. Am. Chem. Soc., 1960, 82, 1555. [all data]


Notes

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