Methyl zinc
- Formula: CH3Zn
- Molecular weight: 80.41
- IUPAC Standard InChIKey: BQWIWXUEEOBUTH-UHFFFAOYSA-N
- CAS Registry Number: 42217-98-1
- Chemical structure:
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Gas phase thermochemistry 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 compiled by: José A. Martinho Simões
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | 45.5 ± 4.0 | kcal/mol | Review | Martinho Simões | The enthalpy of formation relies on 12.6 ± 0.31 kcal/mol for the enthalpy of formation of Zn(Me)2(g). |
ΔfH°gas | 43.5 to 48.8 | kcal/mol | Review | Martinho Simões | The enthalpy of formation limits rely on 12.6 ± 0.31 kcal/mol for the enthalpy of formation of Zn(Me)2(g). |
ΔfH°gas | 41.2 ± 1.6 | kcal/mol | Review | Martinho Simões | The enthalpy of formation relies on 12.6 ± 0.31 kcal/mol for the enthalpy of formation of Zn(Me)2(g). |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, 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: José A. Martinho Simões
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.
Individual Reactions
By formula: C2H6Zn (g) = CH3Zn (g) + CH4 (g)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 63.7 ± 1.5 | kcal/mol | KinG | Jackson, 1989 | |
ΔrH° | 66.0 to 71.2 | kcal/mol | N/A | Smith and Patrick, 1983 | |
ΔrH° | 68.0 ± 4.0 | kcal/mol | N/A | McMillen and Golden, 1982 |
Vibrational and/or electronic energy levels
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry 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: Marilyn E. Jacox
State: C
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 36510 | gas | C-X | 260 | 274 | Young, Gosavi, et al., 1973 | ||
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 2 | CH3 deform. | 950 | T | gas | AB | Young, Gosavi, et al., 1973 |
State: A
Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
---|---|---|---|---|---|---|---|
To = 24082.82 | gas | A-X | 379 | 437 | Young, Gosavi, et al., 1973 | ||
Yu, Youngs, et al., 1986 | |||||||
Robles, Ellis, et al., 1991 | |||||||
Cerny, Tan, et al., 1993 | |||||||
Barckholtz, Powers, et al., 1999 | |||||||
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 2 | CH3 deform. | 1060 | gas | AB LF | Young, Gosavi, et al., 1973 Jackson, 1990 Robles, Ellis, et al., 1991 Barckholtz, Powers, et al., 1999 | |
3 | ZnC stretch | 467 | gas | LF MPI | Robles, Ellis, et al., 1991 Barckholtz, Powers, et al., 1999 | ||
e | 6 | HCZn deform. | 749 | gas | MPI | Barckholtz, Powers, et al., 1999 | |
State: X
Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
---|---|---|---|---|---|---|---|
a1 | 2 | CH3 deform. | 1064 | gas | EM LF | Ibuki, Hiraya, et al., 1990 Jackson, 1990 Robles, Ellis, et al., 1991 | |
3 | ZnC stretch | 445 | gas | LF | Jackson, 1990 Robles, Ellis, et al., 1991 | ||
e | 6 | ZnCH deform. | 315 | T | gas | LF | Robles, Ellis, et al., 1991 |
Additional references: Jacox, 1994, page 230; Jacox, 1998, page 267; Jacox, 2003, page 249
Notes
T | Tentative assignment or approximate value |
o | Energy separation between the v = 0 levels of the excited and electronic ground states. |
References
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Vibrational and/or electronic energy levels, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Martinho Simões
Martinho Simões, J.A.,
Private communication (see http://webbook.nist.gov/chemistry/om/). [all data]
Jackson, 1989
Jackson, R.L.,
Chem. Phys. Lett., 1989, 163, 315. [all data]
Smith and Patrick, 1983
Smith, G.P.; Patrick, R.,
Int. J. Chem. Kinet., 1983, 15, 167. [all data]
McMillen and Golden, 1982
McMillen, D.F.; Golden, D.M.,
Hydrocarbon bond dissociation energies,
Ann. Rev. Phys. Chem., 1982, 33, 493. [all data]
Young, Gosavi, et al., 1973
Young, P.J.; Gosavi, R.K.; Connor, J.; Strausz, O.P.; Gunning, H.E.,
Ultraviolet absorption spectra of CdCH3, ZnCH3, and TeCH3,
J. Chem. Phys., 1973, 58, 12, 5280, https://doi.org/10.1063/1.1679141
. [all data]
Yu, Youngs, et al., 1986
Yu, C.F.; Youngs, F.; Tsukiyama, K.; Bersohn, R.; Preses, J.,
Photodissociation dynamics of cadmium and zinc dimethyl,
J. Chem. Phys., 1986, 85, 3, 1382, https://doi.org/10.1063/1.451226
. [all data]
Robles, Ellis, et al., 1991
Robles, E.S.J.; Ellis, A.M.; Miller, T.A.,
Laser-induced fluorescence spectra of the cold radicals, ZnCH3 and CdCH3, and their inert-gas complexes, X«58872»CdCH3 (X = He, Ne, Ar, Kr, Xe),
Chem. Phys. Lett., 1991, 178, 2-3, 185, https://doi.org/10.1016/0009-2614(91)87054-F
. [all data]
Cerny, Tan, et al., 1993
Cerny, T.M.; Tan, X.Q.; Williamson, J.M.; Robles, E.S.J.; Ellis, A.M.; Miller, T.A.,
High resolution electronic spectroscopy of ZnCH3 and CdCH3,
J. Chem. Phys., 1993, 99, 12, 9376, https://doi.org/10.1063/1.465521
. [all data]
Barckholtz, Powers, et al., 1999
Barckholtz, T.A.; Powers, D.E.; Miller, T.A.; Bursten, B.E.,
ZEKE Spectroscopy of the Organometallic Radicals MgCH,
J. Am. Chem. Soc., 1999, 121, 11, 2576, https://doi.org/10.1021/ja9832461
. [all data]
Jackson, 1990
Jackson, R.L.,
Spectroscopy of the CH3Zn radical. Vibrational frequencies and electronic configurations of the X, Ã, and C states,
Chem. Phys. Lett., 1990, 174, 1, 53, https://doi.org/10.1016/0009-2614(90)85325-7
. [all data]
Ibuki, Hiraya, et al., 1990
Ibuki, T.; Hiraya, A.; Shobatake, K.,
Photoexcitation of M(CH3)2 (M=Zn, Cd, Hg) compounds in the 106--270 nm region,
J. Chem. Phys., 1990, 92, 5, 2797, https://doi.org/10.1063/1.457926
. [all data]
Jacox, 1994
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]
Jacox, 1998
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules: supplement A,
J. Phys. Chem. Ref. Data, 1998, 27, 2, 115-393, https://doi.org/10.1063/1.556017
. [all data]
Jacox, 2003
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules: supplement B,
J. Phys. Chem. Ref. Data, 2003, 32, 1, 1-441, https://doi.org/10.1063/1.1497629
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Reaction thermochemistry data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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