Thioformaldehyde
- Formula: CH2S
- Molecular weight: 46.092
- IUPAC Standard InChIKey: DBTDEFJAFBUGPP-UHFFFAOYSA-N
- CAS Registry Number: 865-36-1
- Chemical structure:
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Gas phase ion energetics data
Go To: Top, 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
Data compiled as indicated in comments:
LL - Sharon G. Lias and Joel F. Liebman
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
B - John E. Bartmess
View reactions leading to CH2S+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 759.7 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 730.5 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
0.465 ± 0.023 | LPES | Moran and Ellison, 1987 | B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.376 ± 0.003 | PI | Ruscic and Berkowitz, 1993 | LL |
9.338 ± 0.010 | PE | Kroto and Suffolk, 1972 | LLK |
9.44 ± 0.05 | EI | Jones and Lossing, 1967 | RDSH |
9.38 | PE | Solouki, Rosmus, et al., 1976 | Vertical value; LLK |
9.0 | PE | Rao, 1975 | Vertical value; LLK |
9.33 | PE | Guimon, Gonbeau, et al., 1974 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CHS+ | 11.533 ± 0.021 | H | PI | Ruscic and Berkowitz, 1993 | LL |
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.
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]
Moran and Ellison, 1987
Moran, S.; Ellison, G.B.,
Electron spectroscopy of CH2S-,
Int. J. Mass Spectrom. Ion Processes, 1987, 80, 83. [all data]
Ruscic and Berkowitz, 1993
Ruscic, B.; Berkowitz, J.,
Photoionization mass spectrometry of CH2S and HCS,
J. Chem. Phys., 1993, 98, 2568. [all data]
Kroto and Suffolk, 1972
Kroto, H.W.; Suffolk, R.J.,
The photoelectron spectrum of an unstable species in the pyrolysis products of dimethyldisulphide,
Chem. Phys. Lett., 1972, 15, 545. [all data]
Jones and Lossing, 1967
Jones, A.; Lossing, F.P.,
The ionization potential and heat of formation of thioformaldehyde,
J. Phys. Chem., 1967, 71, 4111. [all data]
Solouki, Rosmus, et al., 1976
Solouki, B.; Rosmus, P.; Bock, H.,
Unstable intermediates. 4. Thioformaldehyde,
J. Am. Chem. Soc., 1976, 98, 6054. [all data]
Rao, 1975
Rao, C.N.R.,
Lone-pair ionization bands of chromophores in the photoelectron spectra of organic molecules,
Indian J. Chem., 1975, 13, 950. [all data]
Guimon, Gonbeau, et al., 1974
Guimon, C.; Gonbeau, D.; Pfister-Guillouzo, G.; Asbrink, L.; Sandstrom, J.,
Electronic structure of sulphur compounds. VI. Photoelectron spectra of some simple thiocarbonyl compounds,
J. Electron Spectrosc. Relat. Phenom., 1974, 4, 49. [all data]
Notes
Go To: Top, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy EA Electron affinity - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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