| Authors |
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| Publication date |
02-01-2017
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| Journal |
Angewandte Chemie, International Edition
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| Volume | Issue number |
56 | 1
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| Pages (from-to) |
217-220
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| Number of pages |
4
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| Organisations |
-
Faculty of Science (FNWI) - Van 't Hoff Institute for Molecular Sciences (HIMS)
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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.
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| Document type |
Article
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| Note |
With supplementary file
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| Language |
English
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| Related publication |
Low-Frequency CH Stretch Vibrations of Free Alkoxide Ions
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| Published at |
https://doi.org/10.1002/anie.201609437
https://doi.org/10.1002/ange.201609437
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