S. Merajver
Dec 1, 1981
Citations
0
Influential Citations
4
Citations
Journal
Chemistry and Physics of Lipids
Abstract
Abstract The molecule (9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16)-heptadecadeuterio hexadecanoic acid has been characterized as a useful tool for conformational studies of lipid chains in membranes. Calorimetric and mass spectrometry tests successfully established the sample to be of high purity 99.6 ± 0.2% and to be deuterated as specified above. Detailed Raman spectra of the sample were analyzed in all regions of interest between 50 cm −1 and 3100 cm −1 . The optical skeletal bands arising from the perdeuterated octyl tail are uncoupled from the bands proceeding from the head portion of the molecule. Likewise, the very strong symmetric and antisymmetric CD 2 stretching bands fall in the region of 2000–2200 cm −1 where no other bands are present. Bands associated in the CH 2 twisting, CH 2 bending and CH 2 stretching have also been identified. The relevance of this study to conformational analyses in lipids is discussed.