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. 2005 Dec 2;90(4):1260–1269. doi: 10.1529/biophysj.105.067645

TABLE 1.

Assignments of selected absorption bands of POPC, POPA, and POPU lamellar phases

Vibration modes Wavenumber (cm−1) S
POPC
 Inline graphic 1235 −0.318
 ν(C=O) 1735 −0.365
 ν(CH2) 2854 −0.365
POPU
 Inline graphic 1214 −0.443
 ν(N1C6) 1275 −0.330
 ν(C=O) 1738 −0.283
 ν(CH2) 2853 −0.335
POPA
 Inline graphic 1208 −0.140
 ν(ring) 1600 −0.189
 δ(NH2) 1675 −0.180
 ν(C=O) 1730 −0.200
 ν(CH2) 2851 −0.197

ν, symmetric and antisymmetric stretching vibration mode; δ, bending vibration mode.