Cyanogen chloride
- Formula: CClN
- Molecular weight: 61.470
- IUPAC Standard InChI: InChI=1S/CClN/c2-1-3
- IUPAC Standard InChIKey: QPJDMGCKMHUXFD-UHFFFAOYSA-N
- CAS Registry Number: 506-77-4
- 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: CK; Chlorine cyanide; Chlorocyan; Chlorocyanide; Chlorocyanogen; CNCl; ClCN; Chlorcyan; Cyanogen chloride ((CN)Cl); Chlorure de cyanogene; Rcra waste number P033; Cyanochloride; Chlorine cyanide (ClCN); Chlorocyanide (ClCN); Cyanochloride (CNCll); Cyanogen chloride (ClCN)
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Data at other public NIST sites:
- Options:
Phase change data
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 as indicated in comments:
AC - William E. Acree, Jr., James S. Chickos
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 7.70 | 271. | Stull, 1947 | Based on data from 196. to 286. K.; AC |
Antoine Equation Parameters
log10(P) = A − (B / (T + C))
P = vapor pressure (atm)
T = temperature (K)
View plot Requires a JavaScript / HTML 5 canvas capable browser.
| Temperature (K) | A | B | C | Reference | Comment |
|---|---|---|---|---|---|
| 196.5 to 286.3 | 4.65606 | 1074.1 | -54.458 | Stull, 1947 | Coefficents calculated by NIST from author's data. |
Enthalpy of sublimation
| ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 8.53 | 228. | A | Stull, 1947 | Based on data from 196. to 259. K.; AC |
Gas phase ion energetics data
Go To: Top, Phase change data, References, Notes
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 ± 0.02 | eV | N/A | N/A | L |
| Quantity | Value | Units | Method | Reference | Comment |
| Proton affinity (review) | 172.6 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
| Quantity | Value | Units | Method | Reference | Comment |
| Gas basicity | 165.3 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 12.37 | PE | Lake and Thompson, 1970 | RDSH |
| 12.34 | PE | Lake and Thompson, 1970 | RDSH |
| 12.37 ± 0.02 | PE | Heilbronner, Hornung, et al., 1970 | RDSH |
| 12.34 ± 0.01 | PI | Dibeler and Liston, 1967 | RDSH |
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| CCl+ | 17.2 ± 0.2 | N | EI | Herron and Dibeler, 1960 | RDSH |
| CN+ | 18.50 ± 0.02 | Cl | PI | Dibeler and Liston, 1967 | RDSH |
| CN+ | 18.3 ± 0.2 | Cl | EI | Herron and Dibeler, 1960 | RDSH |
| CN+ | 15.5 ± 0.2 | Cl- | EI | Herron and Dibeler, 1960 | RDSH |
| Cl+ | 17.32 ± 0.02 | CN | PI | Dibeler and Liston, 1967 | RDSH |
| Cl+ | 13.6 ± 0.1 | CN- | EI | Herron and Dibeler, 1960 | RDSH |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy ΔsubH Enthalpy of sublimation ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.