Manganese, tricarbonyl[(1,2,3,4,5-η)-1-methyl-2,4-cyclopentadien-1-yl]-
- Formula: C9H7MnO3
- Molecular weight: 218.0881
- IUPAC Standard InChIKey: LYHJNAIHGFWRKM-UHFFFAOYSA-N
- CAS Registry Number: 12108-13-3
- 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: Manganese, tricarbonyl(methyl-π-cyclopentadienyl)-; π-(Methylcyclopentadienyl)manganese tricarbonyl; (Methylcyclopentadienyl)manganese tricarbonyl; (Methylcyclopentadienyl)tricarbonylmanganese; Methylcymantrene; Tricarbonyl(methyl-π-cyclopentadienyl)manganese; Tricarbonyl(methylcyclopentadienyl)manganese; Tricarbonyl(2-methylcyclopentadienyl)manganese; 2-(Methylcyclopentadienyl)manganesetricarbonyl; (η5-Methylcyclopentadienyl) manganese tricarbonyl-; (1,2,3,4,5-η-1-Methyl-2,4-cyclopentadien-1-yl)manganese tricarbonyl; Manganese (methylcyclopentadienyl) tricarbonyl; Ak-33x; CI-2; Manganese, tricarbonyl methylcyclopentadienyl; Manganese, tricarbonyl(2-methylcyclopentadienyl)-; MMT; Antiknock-33; Combustion improver -2; Methylcyklopentadientrikarbonylmanganium; Manganese, tricarbonyl[(1,2,3,4,5-η)-1-methyl-2,4-cyclopentadie-1-yl]-; Manganese, tricarbonyl[(1,2,3,4,5-η5)-1-methyl-2,4-cyclopentadien-1-yl]-; NSC 22316
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Gas phase ion energetics data
Go To: Top, Mass spectrum (electron ionization), 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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
B - John E. Bartmess
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Proton affinity (review) | 199.3 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 191.5 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Electron affinity determinations
EA (eV) | Method | Reference | Comment |
---|---|---|---|
0.50 ± 0.10 | LPES | Martel and Waller, 1998 | Vertical Detachment Energy: 1.0 eV. Derived acidity in paper incorrect:wrong anion EA used; B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
7.5 | PE | Calabro and Lichtenberger, 1981 | LLK |
~8.1 | PE | Guimon, Pfister-Guillouzo, et al., 1979 | LLK |
7.86 ± 0.01 | EI | Efraty, Huang, et al., 1975 | LLK |
7.89 | PE | Calabro and Lichtenberger, 1981 | Vertical value; LLK |
7.89 | PE | Calabro, Hubbard, et al., 1981 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C6H7Mn+ | 11.21 ± 0.03 | 3CO | EI | Efraty, Huang, et al., 1975 | LLK |
C7H7OMn+ | 9.01 ± 0.03 | 2CO | EI | Efraty, Huang, et al., 1975 | LLK |
C8H7O2Mn+ | 8.13 ± 0.01 | CO | EI | Efraty, Huang, et al., 1975 | LLK |
Mn+ | 16.33 ± 0.02 | 3CO+C6H7 | EI | Efraty, Huang, et al., 1975 | LLK |
Mass spectrum (electron ionization)
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 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. |
---|---|
Origin | ETHYL CORPORATION, FERNDALE, MICHIGAN |
NIST MS number | 25876 |
References
Go To: Top, 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.
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]
Martel and Waller, 1998
Martel, A.A.; Waller, I.M.,
Negative-ion photoelectron spectrum of tricarbonyl(eta 5-methylcyclopentadienyl)manganate(0),
J. Phys. Chem. A, 1998, 102, 50, 10258-10260, https://doi.org/10.1021/jp983333f
. [all data]
Calabro and Lichtenberger, 1981
Calabro, D.C.; Lichtenberger, D.L.,
Valence ionizations of olefins coordinated to metals. Olefin dicarbonyl(η5-(methyl and pentamethyl)cyclopentadienyl)manganese complexes,
J. Am. Chem. Soc., 1981, 103, 6846. [all data]
Guimon, Pfister-Guillouzo, et al., 1979
Guimon, C.; Pfister-Guillouzo, G.; Mathey, F.,
Electronic structure of phosphacymantrene by photoelectron spectroscopy (He I, He II) and E.H.T. calculations,
Nouv. J. Chim., 1979, 3, 725. [all data]
Efraty, Huang, et al., 1975
Efraty, A.; Huang, M.H.A.; Weston, C.A.,
Mass spectra of organometallic compounds. V. Electron-impact study of the cyclopentadienylmanganese thiocarbonyl and carbonyl complexes RC5H4Mn(CO)2CX [R=H, CH3; X = S, O],
Inorg. Chem., 1975, 14, 2796. [all data]
Calabro, Hubbard, et al., 1981
Calabro, D.C.; Hubbard, J.L.; Blevins, C.H., II; Campbell, A.C.; Lichtenberger, D.L.,
The effects of methyl group substitution on metal-coordinated cyclopentadienyl rings. The core and valence ionizations of methylated tricarbonyl(η5-cyclopentadienyl)metal complexes,
J. Am. Chem. Soc., 1981, 103, 6839. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), 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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