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Raman spectroscopy of 3‐(pent‐1‐enyl) methyl ether and selected deuterium‐labelled analogues
Author(s) -
Brown Helen C.,
Bowen Richard D.,
Edwards Howell G. M.,
Farwell Dennis W.
Publication year - 2007
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1818
Subject(s) - raman spectroscopy , chemistry , substituent , ether , methyl group , deuterium , group (periodic table) , carbon fibers , stereochemistry , organic chemistry , materials science , physics , quantum mechanics , composite number , optics , composite material
The Raman spectra of 3‐(pent‐1‐enyl) methyl ether (3‐methoxypent‐1‐ene) and four deuterium‐labelled analogues are reported and discussed. Correlations between specific structural features and the associated Raman bands are developed, with a view to enhancing the analytical application of Raman spectroscopy in investigating materials containing an alkenyl group. Particular attention is given to developing means of distinguishing the methyl group attached to the carbon skeleton from that of the methoxy group, to maximize the analytical utility of the signals associated with ν(sp 2 CH), ν(sp 2 CH 2 ) and ν(CC) stretching vibrations, and to interpreting in more detail certain δ(sp 2 CH) and δ(sp 2 CH 2 ) vibrations of the atoms of the double bond. These results establish a definitive spectroscopic protocol for differentiating a methoxy group from a methyl substituent attached directly to a carbon atom in unsaturated ethers. Copyright © 2007 John Wiley & Sons, Ltd.