[2H4]ethylene
- Formula: C2D4
- Molecular weight: 32.0778
- CAS Registry Number: 683-73-8
- Information on this page:
- Data at other public NIST sites:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Gas phase ion energetics data
Go To: Top, 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 evaluated as indicated in comments:
L - 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
View reactions leading to C2D4+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 10.528 ± 0.001 | eV | N/A | N/A | L |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
10.5286 ± 0.0006 | LS | Williams and Cool, 1991 | LL |
10.526 ± 0.007 | PE | Carlier and Botter, 1979 | LLK |
10.528 ± 0.002 | TE | Stockbauer and Inghram, 1975 | LLK |
10.528 ± 0.003 | TE | Stockbauer and Inghram, 1975, 2 | LLK |
15.83 ± 0.02 | PE | Branton, Frost, et al., 1970 | RDSH |
14.45 ± 0.02 | PE | Branton, Frost, et al., 1970 | RDSH |
18.90 ± 0.02 | PE | Branton, Frost, et al., 1970 | RDSH |
10.52 ± 0.02 | PE | Branton, Frost, et al., 1970 | RDSH |
12.48 ± 0.02 | PE | Branton, Frost, et al., 1970 | RDSH |
10.52 ± 0.03 | S | Price and Tutte, 1940 | RDSH |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CD2+ | 18.13 ± 0.07 | CD2 | TE | Stockbauer and Inghram, 1975, 2 | LLK |
C2D2+ | 13.24 ± 0.01 | D2 | TE | Stockbauer and Inghram, 1975, 2 | LLK |
C2D3+ | 13.41 ± 0.02 | D | TE | Stockbauer and Inghram, 1975, 2 | LLK |
Vibrational and/or electronic energy levels
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: Takehiko Shimanouchi
Symmetry: D2h Symmetry Number σ = 4
Sym. | No | Approximate | Selected Freq. | Infrared | Raman | Comments | ||||
---|---|---|---|---|---|---|---|---|---|---|
Species | type of mode | Value | Rating | Value | Phase | Value | Phase | |||
ag | 1 | CD2 s-str | 2251 | C | ia | 2251 VS | liq. | |||
ag | 2 | CC str | 1515 | C | ia | 1515 VS | liq. | |||
ag | 3 | CD2 scis | 981 | C | ia | 981 M | liq. | |||
au | 4 | CD2 twist | 728 | E | ia | ia | CF | |||
b1g | 5 | CD2 a-str | 2304 | C | ia | 2304 W | liq. | |||
b1g | 6 | CD2 rock | 1009 | E | ia | OC(ν6+ν10) | ||||
b1u | 7 | CD2 wag | 720 | B | 720.0 VS | gas | ia | |||
b2g | 8 | CD2 wag | 780 | C | ia | 780 W | liq. | |||
b2u | 9 | CD a-str | 2345 | C | 2345 S | gas | ia | |||
b2u | 10 | CD2 rock | 586 | E | ia | CF. From product rule. | ||||
b3u | 11 | CD2 a-str | 2200 | C | 2200.2 S | gas | ia | |||
b3u | 12 | CD2 scis | 1078 | C | 1077.9 S | gas | ia | |||
Source: Shimanouchi, 1972
Notes
VS | Very strong |
S | Strong |
M | Medium |
W | Weak |
ia | Inactive |
OC | Frequency estimated from an overtone or a combination tone indicated in the parentheses. |
CF | Calculated frequency |
B | 1~3 cm-1 uncertainty |
C | 3~6 cm-1 uncertainty |
E | 15~30 cm-1 uncertainty |
References
Go To: Top, Gas phase ion energetics 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.
Williams and Cool, 1991
Williams, B.A.; Cool, T.A.,
Two-photon spectroscopy of Rydberg states of jet-cooled C2H4 and C2D4,
J. Am. Chem. Soc., 1991, 94, 6358. [all data]
Carlier and Botter, 1979
Carlier, J.; Botter, R.,
Photoelectron spectra of ethylene of the six deuterated derivatives,
J. Electron Spectrosc. Relat. Phenom., 1979, 17, 91. [all data]
Stockbauer and Inghram, 1975
Stockbauer, R.; Inghram, M.G.,
Vibrational structure in the ground state of ethylene ethylene-d4 molecular ions investigated by threshold photoelectron spectroscopy,
J. Electron Spectrosc. Relat. Phenom., 1975, 7, 492. [all data]
Stockbauer and Inghram, 1975, 2
Stockbauer, R.; Inghram, M.G.,
Threshold photoelectron-photoion coincidence mass spectrometric study of ethylene and ethylene-d4,
J. Chem. Phys., 1975, 62, 4862. [all data]
Branton, Frost, et al., 1970
Branton, G.R.; Frost, D.C.; Makita, T.; McDowell, C.A.; Stenhouse, I.A.,
Photoelectron spectra of ethylene and ethylene-d4,
J. Chem. Phys., 1970, 52, 802. [all data]
Price and Tutte, 1940
Price, W.C.; Tutte, W.T.,
The absorption spectra of ethylene, deutero-ethylene and some alkyl-substituted ethylenes in the vacuum ultra-violet,
Proc. Roy. Soc. (London), 1940, A174, 207. [all data]
Shimanouchi, 1972
Shimanouchi, T.,
Tables of Molecular Vibrational Frequencies Consolidated Volume I, National Bureau of Standards, 1972, 1-160. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
AE Appearance energy IE (evaluated) Recommended ionization energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.