The Asymmetry of (−)α‐Pinene as Revealed from its Raman Optical Activity Spectrum |
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| Authors: | Peijie Wang Yan Fang Guozhen Wu |
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| Institution: | 1. The Beijing Key Laboratory for Nano‐Photonics and Nano‐Structure, Department of Physics Capital Normal University, , Beijing, 100048 China;2. State Key Laboratory of Low‐Dimensional Quantum Physics, Department of Physics, Tsinghua University, , Beijing, 100048 China |
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| 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)2which show the ROA coupling mechanisms involving the electric/magnetic dipoles and the electric dipole/quadrupole, respectively. Chirality 25:600–605, 2013. © 2013 Wiley Periodicals, Inc. |
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| Keywords: | (− )α ‐pinene Raman optical activity (ROA) differential bond polarizability chiral asymmetry |
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