Laser Control for Coupled Torsions in Chiroptical Switches: A Combined Quantum and Classical Dynamics Approach
Laser Control for Coupled Torsions in Chiroptical Switches: A Combined Quantum and Classical Dynamics Approach
复制标题
手性光学开关中耦合扭转的激光控制:量子和经典动力学相结合的方法
DOI:
10.1021/jp410342a
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发表时间:
2014
影响因子:
3.7
通讯作者:
T. Klamroth
中科院分区:
文献类型:
--
作者:
D. Kröner;S. Schimka;T. Klamroth
We present a novel laser pulse control for the chiroptical switch 1-(2-cis-fluoroethenyl)-2-fluoro-3,5-dibromobenzene mounted on adamantane, where the latter imitates a linker group or part of a solid surface. This molecular device offers three switching states: a true achiral “off”-state and two chiral “on”-states of opposite handedness. Due to the alignment of its chiral axis along the surface normal several defined orientations of the switch have to be considered for an efficient stereocontrol strategy. In addition to these different initial conditions, coupled torsional degrees of freedom around the chiral axis make the quest for highly stereoselective laser pulses a challenge. The necessary flexibility in pulse design is accomplished by employing the iterative stochastic pulse optimization method we presented recently. Still, the size and complexity of the system dictates a combined treatment by fast molecular dynamics and computationally intensive quantum dynamics. Although quantum effects are found to be of importance, the pulses optimized within the classical treatment allow us to turn on the chirality of the switch, achieving high enantioselectivity in the quantum treatment for all orientations at the same time.
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影响因子:
2.1
作者:
Geppert, D;Seyfarth, L;de Vivie-Riedle, R
通讯作者:
de Vivie-Riedle, R
影响因子:
4.4
作者:
T. Klamroth;D. Kröner
通讯作者:
D. Kröner
DOI:
--
发表时间:
2006
期刊:
J. Photochem. & PhotoBiol. A : Chemistry 178
影响因子:
--
作者:
K.Hoki;S.Koseki;T.Matsuhsita;R.Sahnoun;Y.Fujimura
通讯作者:
Y.Fujimura
影响因子:
16.6
作者:
K. Hoki;D. Kröner;J. Manz
通讯作者:
K. Hoki;D. Kröner;J. Manz
影响因子:
4.4
作者:
Shane M. Parker;M. Ratner;T. Seideman
通讯作者:
T. Seideman