cyc-C4D4
- Formula: C4D4
- Molecular weight: 56.0992
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Vibrational and/or electronic energy levels
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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: Marilyn E. Jacox
State: X
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| b1u | C=C stretch | 1456 | w | Ar | IR | Masamune, Souto-Bachiller, et al., 1978 | |
| b2u | 1043 | w m | Ar | IR | Masamune, Souto-Bachiller, et al., 1978 | ||
| 609 | w m | Ar | IR | Masamune, Souto-Bachiller, et al., 1978 | |||
| b3u | 421 | vs | Ar | IR | Masamune, Souto-Bachiller, et al., 1978 | ||
Notes
| w | Weak |
| m | Medium |
| vs | Very strong |
References
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Masamune, Souto-Bachiller, et al., 1978
Masamune, S.; Souto-Bachiller, F.A.; Machiguchi, T.; Bertie, J.E.,
Cyclobutadiene is not square,
J. Am. Chem. Soc., 1978, 100, 15, 4889, https://doi.org/10.1021/ja00483a043
. [all data]
Notes
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- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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