Infrared intensities as a quantitative measure of intramolecular interactions. Part XXXI. Intramolecular interactions in arylacetylenes
- 1 January 1974
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 3,p. 273-276
- https://doi.org/10.1039/p29740000273
Abstract
Integrated i.r. intensities of both the ν8 ring-stretching and ν(CC) bands of a series of m- and p-substituted phenylacetylenes indicate that the ethynyl group is a weak resonance donor when attached to a benzene ring. The group can become a strong resonance donor or acceptor in situations of high electron demand or excess, respectively.Keywords
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