- Formula: CH
- Molecular weight: 13.0186
- IUPAC Standard InChI:
- Download the identifier in a file.
- IUPAC Standard InChIKey: VRLIPUYDFBXWCH-UHFFFAOYSA-N
- CAS Registry Number: 3315-37-5
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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Gas phase thermochemistry data
Go To: Top, Reaction thermochemistry data, References, Notes
|fH°gas||142.00||kcal/mol||Review||Chase, 1998||Data last reviewed in December, 1967|
|S°gas,1 bar||43.748||cal/mol*K||Review||Chase, 1998||Data last reviewed in December, 1967|
Gas Phase Heat Capacity (Shomate Equation)
Cp° = A + B*t + C*t2 + D*t3 +
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.
|Temperature (K)||298. - 1100.||1100. - 6000.|
|Reference||Chase, 1998||Chase, 1998|
|Comment||Data last reviewed in December, 1967||Data last reviewed in December, 1967|
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, References, Notes
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.
(CHCl- 4294967295) + = CHCl-
By formula: (CHCl- 4294967295CH) + CH = CHCl-
|rH°||37.7 ± 2.3||kcal/mol||CIDT||Jesinger and Squires, 1999||gas phase|
|rH°||38.0 ± 2.0||kcal/mol||N/A||Gilles, Ervin, et al., 1992||gas phase; Triplet state is 4.2±2.5 kcal/mol higher in energy than neutral singlet|
By formula: C- + H+ = CH
|rH°||365.54 ± 0.17||kcal/mol||D-EA||Scheer, Bilodeau, et al., 1998||gas phase; Given: 1.262119(20) eV|
|rG°||360.00 ± 0.27||kcal/mol||H-TS||Scheer, Bilodeau, et al., 1998||gas phase; Given: 1.262119(20) eV|
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Notes
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]
Jesinger and Squires, 1999
Jesinger, R.A.; Squires, R.R., Carbyne thermochemistry from energy-resolved collision-induced dissociation. The heats of formation of CH, CF, and CCl, Int. J. Mass Spectrom., 1999, 187, 745-757, https://doi.org/10.1016/S1387-3806(98)14182-9 . [all data]
Gilles, Ervin, et al., 1992
Gilles, M.K.; Ervin, K.M.; Ho, J.; Lineberger, W.C., Negative Ion Photoelectron Spectroscopy of HCF-, HCCl-, HCBr-, and HCI- - Photoelectron Angular Distributions and Neutral Triplet Excitation, J. Phys. Chem., 1992, 96, 3, 1130, https://doi.org/10.1021/j100182a021 . [all data]
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]
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) fH°gas Enthalpy of formation of gas at standard conditions rG° Free energy of reaction at standard conditions rH° Enthalpy of reaction at standard conditions
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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