Low-Frequency CH Stretch Vibrations of Free Alkoxide Ions
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| Publication date | 02-01-2017 |
| Journal | Angewandte Chemie |
| Volume | Issue number | 129 | 1 |
| Pages (from-to) | 223-226 |
| Number of pages | 4 |
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| Abstract | CH stretches in hydrocarbon cations often shift to lower frequencies relative to neutral molecules, because they do not have sufficient electrons to give every bond an electron pair. A parallel effect in negatively charged species has not been previously observed. Here we show that CH bond weakening occurs in alkoxide anions as a consequence of hyperconjugation. The reasoning differs somewhat from the case of positively charged ions, but the net effect is the same: to lower CH stretching frequencies by hundreds of wavenumbers. |
| Document type | Article |
| Note | This is the peer reviewed version of the following article: Low-Frequency CH Stretch Vibrations of Free Alkoxide Ions. Oomens, J., Berden, G. & Morton, T. H., 2 Jan 2017, In : Angewandte Chemie. 129, 1, p. 223-226; which has been published in final form at https://doi.org/10.1002/ange.201609437. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. - With supplementary file. |
| Language | English |
| Related publication | Low-Frequency CH Stretch Vibrations of Free Alkoxide Ions |
| Published at | https://doi.org/10.1002/ange.201609437 https://doi.org/10.1002/anie.201609437 |
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