Abstract
Abstract The infrared spectra of methyl, ethyl, n-propyl, isopropyl, n-butyl, 2-ethylhexyl, benzyl and phenyl vinyl ether and also ethyl vinyl thioether were investigated over the region of 4000-650 cm−1. The assignment of the spectrum of methyl vinyl ether has been made by the aid of the bands contours. The absorption bands of the other were discussed and the characteristic frequencies of vinyl ethers are concluded as follows. (1) three bands near 3100 cm−1…… CH stretching of vinyl group (2) 1615±5 cm−1…… C = C stretching (3) 1321±2 cm−1…… CH in-plane deformation (4) 1203±2 cm−1…… C-O stretching (5) 965±5 cm−1…… = CH- out-of-plane deformation (6) 815±5 cm−1…… = CH2 out-of-plane deformation
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