Dynamic Control and Amplification of Molecular Chirality by Circular Polarized Light

  title={Dynamic Control and Amplification of Molecular Chirality by Circular Polarized Light},
  author={Nina P. M. Huck and Wolter F Jager and Ben de Lange and Ben L. Feringa},
  pages={1686 - 1688}
The enantiomers of a racemic photoresponsive material represent two distinct states that can be modulated with irradiation at a single wavelength by changing the handedness ofthe light. Dynamic control over molecular chirality was obtained by the interconversion of enantiomers of helically shaped molecules with either left or right circular polarized light (CPL). Photoresolution of the bistable compound as a dopant in a nematic liquid crystalline phase by CPL irradiation led to a chiral… Expand
Enantioselective synthesis of a chiral coordination polymer with circularly polarized visible laser.
It is exciting that the absolute asymmetric synthesis of a chiral coordination polymer could be enantioselective when using CPL, and provides a strategy for the control of the chirality of chiralcoordination polymers. Expand
Chirality Remote Control in Nanoporous Materials by Circularly Polarized Light.
A nanoporous solid in which chirality and enantioselective enrichment is induced by circularly polarized light (CPL) and opens new opportunities for chiral resolution and information storage with CPL. Expand
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Light-induced macroscopic chirality in a nonchiral azo-dye-doped polymer film is reported. A helicoidal standing wave was used to achieve a twisted molecular organization. Polarization properties ofExpand
Complete chiral symmetry breaking of an amino acid derivative directed by circularly polarized light.
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Photodynamic chiral molecular switches with thermal stability: from reflection wavelength tuning to handedness inversion of self-organized helical superstructures.
Three compounds that bear two axially chiral bridged binaphthyl units were developed as photodynamic chiral dopants for nematic liquid crystals by inducing a change in the dihedral angle that led to an inversion of the handedness of the helices. Expand
Induction and control of supramolecular chirality by light in self-assembled helical nanostructures.
This methodology opens a route to ward the formation of supramolecular chiral conducting nanostructures from the self-assembly of achiral molecules by using visible circularly polarized light. Expand
Photoinduced pitch changes in chiral nematic liquid crystals formed by doping with chiral diarylethene
Chiral binaphthyl derivatives having two photochromic diarylethene units were synthesized in an attempt to use them as dopants for photoresponsive liquid crystals. These compounds showed thermallyExpand
Photoresponsive Chiral Dopants: Light‐Driven Helicity Manipulation in Cholesteric Liquid Crystals for Optical and Mechanical Functions
This review is on recent advancements regarding the design of photoisomerizable chiral dopants which can switch the helical orientation in cholesteric liquid crystals upon light stimuli. ChiralExpand
On enantiomeric excesses obtained from racemic mixtures by using circularly polarized pulsed lasers of varying durations
Abstract The control of the populations of the left- versus the right-handed excited molecular states, arising from the interaction of a circularly polarized pulsed laser with the ground states ofExpand
Chirogenesis and Amplification of Molecular Chirality Using Optical Vortices.
A new methodology of asymmetric transformation by the combination of enantioselective crystal nucleation by irradiation with optical vortices and crystallization-induced dynamic optical resolution of conglomerate crystals is proposed. Expand


The modulation of the mesophases and physical properties of liquid crystalline (LC) materials by reversible photochemical reactions, i.e., photoswitching of LC phases, is a major challenge forExpand
Molecular Optical Activity and the Chiral Discriminations
1. Introduction 2. Optical rotatory dispersion and circular dichroism 3. General mechanisms for optical activity 4. The symmetric chromophore in a chiral molecular environment 5. Inherent dissymmetryExpand
Weak neutral currents and the origin of biomolecular chirality
It has long been known that Earth's biochemistry is overwhelmingly dissymmetric or chiral1–4. In model chemical systems5–7 that spontaneously evolve to a state dominated by either the L or the DExpand
Enantiomers, Racemates, and Resolutions
RACEMATES AND THEIR ENANTIOMER CONSTITUENTS. Types of Crystalline Racemates. Binary Mixtures of Enantiomers. Solution Properties of Enantiomers and Their Mixtures. RESOLUTION OF ENANTIOMER MIXTURES.Expand
For switching process of diastereoisomers with unpolarized light, see
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Recently, photochemical switching between LC phases through use of diastereomeric photoresponsive guest molecules was shown
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For a pertinent example of a stable molecular switch, see
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