Picosecond time-resolved resonance Raman (TR3) spectrum with similar to 1 p
s lifetime has been observed when probing under intense transient S-1 cis-s
tilbene absorption band at 630 nm anti photoexciting at 267 nm. The spectru
m, ascribed to Si cis-stilbene, is notable for high intensity of low-freque
ncy bands (243, 475 and 742cm(-1)).