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Updated: May 9, 2026

Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems
Published on: February 10, 2020
The asymmetry of (-)α-pinene as revealed from its raman optical activity spectrum
Peijie Wang1, Yan Fang, Guozhen Wu
1The Beijing Key Laboratory for Nano-Photonics and Nano-Structure, Department of Physics Capital Normal University, Beijing, 100048, China.
Abstract:
An algorithm is employed to retrieve the differential bond polarizabilities of the C-C bonds from the Raman optical activity (ROA) spectrum of (-)α-pinene. (-)α-pinene possesses two asymmetric centers (carbon atoms) and a local mirror symmetry. These differential bond polarizabilities show the characteristics of the asymmetry around the asymmetric carbons with respect to the mirror reflection. This analysis is accompanied along with the ROA mode signatures and the calculated β(G ')(2) and β(A)(2) which show the ROA coupling mechanisms involving the electric/magnetic dipoles and the electric dipole/quadrupole, respectively.
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