At room temperature Figs. 1a and 2a
the band around 3473 cm1 assigned to OAH stretching vibration
of hydroperoxide, 3006.8–3007.0 cm1 as CAH stretching
vibration of the cis-double bond ‚CAH) and 2854.7–
2925.8 cm1 shows CAH asymmetric and symmetric stretching
vibrations of the aliphatic CH2.