Raman spectroscopic studies of biological membrane model systems: dietherlecithins

Raman spectra are obtained for the multilayer dispersion of rac-1,2,dioctadec-9'-cis-enyl-glycero-3-phosphorylcholine (dietherlecithin) in excess water. The CH stretching region was studied as a function of temperature and indicates that the multilayer dispersions undergo a liquid crystal to the gel phase transition at--21 +/- 4 degrees C.