carbon

• Formula: C
• Molecular weight: 12.0107
• IUPAC Standard InChI: InChI=1S/C Copy

  
• IUPAC Standard InChIKey: OKTJSMMVPCPJKN-UHFFFAOYSA-N Copy
• CAS Registry Number: 7440-44-0
• Chemical structure:
  This structure is also available as a 2d Mol file
• Species with the same structure:
  • diamond
  • Graphite
  • Carbon
• Other names: activated carbon
• Information on this page:
  • Gas phase ion energetics data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Phase change data
  • Reaction thermochemistry data
  • Ion clustering data
• Data at other public NIST sites:
  • NIST Atomic Spectra Database - Lines Holdings (on physics web site)
  • NIST Atomic Spectra Database - Levels Holdings (on physics web site)
  • NIST Atomic Spectra Database - Ground states and ionization energies (on physics web site)
  • Electron-Impact Ionization Cross Sections (on physics web site)
  • Gas Phase Kinetics Database
  • X-ray Photoelectron Spectroscopy Database, version 5.0
  • X-ray Photoelectron Spectroscopy Database, version 5.0
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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:
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LL - Sharon G. Lias and Joel F. Liebman
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
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 C⁺ (ion structure unspecified)

Electron affinity determinations

Ionization energy determinations

Anion protonation reactions

 +  =

By formula: C^- + H⁺ = CH

References

Go To: Top, 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.

Scheer, Bilodeau, et al., 1998
Scheer, M.; Bilodeau, R.C.; Brodie, C.A.; Haugen, H.K., Systematic study of the stable states of C-, Si-, Ge-, and Sn- via infrared laser spectroscopy, Phys. Rev. A, 1998, 58, 4, 2844-2856, https://doi.org/10.1103/PhysRevA.58.2844 . [all data]

Feldmann, 1977
Feldmann, D., Infrared Photodetachment Measurements Near Thresholds of C-, Chem. Phys. Lett., 1977, 47, 2, 338, https://doi.org/10.1016/0009-2614(77)80032-8 . [all data]

Honig, 1954
Honig, R.E., Mass spectrometric study of the molecular sublimation of graphite, J. Chem. Phys., 1954, 22, 126. [all data]

Lide, 1992
Lide, D.R. (Editor), Ionization potentials of atoms and atomic ions in Handbook of Chem. and Phys., 1992, 10-211. [all data]

Kelly, 1987
Kelly, R.L., Atomic and ionic spectrum lines of hydrogen through kryton, J. Phys. Chem. Ref. Data, 1987, 16. [all data]

Haque and Gingerich, 1981
Haque, R.; Gingerich, K.A., Identification and atomization energies of gaseous molecules ScC₂, ScC₃, ScC₄, ScC₅, and ScC₆ by high temperature mass spectrometry, J. Chem. Phys., 1981, 74, 6407. [all data]

Gupta and Gingerich, 1979
Gupta, S.K.; Gingerich, K.A., Observation and atomization energies of the gaseous uranium carbides, UC, UC₂, UC₃, UC₄, UC₅, and UC₆ by high temperature mass spectrometry, J. Chem. Phys., 1979, 71, 3072. [all data]

Gingerich and Gupta, 1978
Gingerich, K.A.; Gupta, K.A., Dissociation energies of the molecules RhTh and RhU from high temperature mass spectrometry and predicted thermodynamic stabilities of selected diatomic actinide-platinum metal intermetallic molecules, J. Chem. Phys., 1978, 69, 505. [all data]

Cocke and Gingerich, 1974
Cocke, D.L.; Gingerich, K.A., Thermodynamic investigation of the gaseous molecules TiRh, Rh₂, and Ti₂Rh by mass spectrometry, J. Chem. Phys., 1974, 60, 1958. [all data]

Cocke, Gingerich, et al., 1973
Cocke, D.L.; Gingerich, K.A.; Kordis, J., Determination of the high bond dissociation energy of the molecule LaRh, High Temp. Sci., 1973, 5, 474. [all data]

Cocke and Gingerich, 1972
Cocke, D.L.; Gingerich, K.A., Determination of the heats of atomization of the molecules RhC₂, RhC, and TiC₂ by high temperature mass spectrometry, J. Chem. Phys., 1972, 57, 3654. [all data]

Cocke and Gingerich, 1972, 2
Cocke, D.L.; Gingerich, K.A., Mass spectrometric determination of the bond dissociation energies of the molecules CePd and CeC₂, J. Phys. Chem., 1972, 76, 2332. [all data]

Moore, 1970
Moore, C.E., Ionization potentials and ionization limits derived from the analyses of optical spectra, Natl. Stand. Ref. Data Ser., (U.S. Natl. Bur. Stand.), 1970, 34, 1. [all data]

Drowart, Burns, et al., 1959
Drowart, J.; Burns, R.P.; DeMaria, G.; Inghram, M.G., Mass spectrometric study of carbon vapor, J. Chem. Phys., 1959, 31, 1131. [all data]

Notes

Go To: Top, Gas phase ion energetics data, References

• Symbols used in this document:
  

  EA	Electron affinity
  IE (evaluated)	Recommended ionization energy
  ΔrG°	Free energy of reaction at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

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