標題: Quantum Switching of pi-Electron Rotations in a Nonplanar Chiral Molecule by Using Linearly Polarized UV Laser Pulses
作者: Mineo, Hirobumi
Yamaki, Masahiro
Teranishi, Yoshiaki
Hayashi, Michitoshi
Lin, Sheng Hsien
Fujimura, Yuichi
應用化學系分子科學碩博班
物理研究所
Institute of Molecular science
Institute of Physics
公開日期: 5-Sep-2012
摘要: Nonplanar chiral aromatic molecules are candidates for use as building blocks of multidimensional switching devices because the pi electrons can generate ring currents with a variety of directions. We employed (P)-2,2'-biphenol because four patterns of pi-electron rotations along the two phenol rings are possible and theoretically determine how quantum switching of the it-electron rotations can be realized. We found that each rotational pattern can be driven by a coherent excitation of two electronic states under two conditions: one is the symmetry of the electronic states and the other is their relative phase. On the basis of the results of quantum dynamics simulations, we propose a quantum control method for sequential switching among the four rotational patterns that can be performed by using ultrashort overlapped pump and dump pulses with properly selected relative phases and photon polarization directions. The results serve as a theoretical basis for the design of confined ultrafast switching of ring currents of nonplanar molecules and further current-induced magnetic fluxes of more sophisticated systems.
URI: http://dx.doi.org/10.1021/ja3047848
http://hdl.handle.net/11536/16853
ISSN: 0002-7863
DOI: 10.1021/ja3047848
期刊: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume: 134
Issue: 35
起始頁: 14279
結束頁: 14282
Appears in Collections:Articles


Files in This Item:

  1. 000308283200004.pdf

If it is a zip file, please download the file and unzip it, then open index.html in a browser to view the full text content.