TITLE

A spectral route to determining chirality

AUTHOR(S)
Pedersen, Jesper Goor; Mortensen, Niels Asger
PUB. DATE
October 2009
SOURCE
Applied Physics Letters;10/12/2009, Vol. 95 Issue 15, p151104
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We show how one-dimensional structured media can be used to measure chirality, via the spectral shift of the photonic band gap edges. Analytically, we show that a chiral contrast can, in some cases, be mapped unto an index contrast, thereby greatly simplifying the analysis of such structures. Using this mapping, we derive a first-order shift of the band gap edges with chirality. Potentially, this effect could be used for measuring enantiomeric excess.
ACCESSION #
44665220

 

Related Articles

  • Two-dimensional crystals: Through the looking glass. Richardson, Neville // Nature Materials;Feb2006, Vol. 5 Issue 2, p91 

    The article discusses an alternative mechanism for the growth of two-dimensional chiral crystals. Chirality arises when there is adsorption on a surface in some achiral molecules. A chiral crystal is formed through crystallization of a single enantiomer. A mechanism of interconversion that does...

  • Amplification of chirality in two-dimensional enantiomorphous lattices. Fasel, Roman; Parschau, Manfred; Ernst, Karl-Heinz // Nature;1/26/2006, Vol. 439 Issue 7075, p449 

    The concept of chirality dates back to 1848, when Pasteur manually separated left-handed from right-handed sodium ammonium tartrate crystals. Crystallization is still an important means for separating chiral molecules into their two different mirror-image isomers (enantiomers), yet remains...

  • enantiomorph.  // Taber's Cyclopedic Medical Dictionary (2009);2009, Issue 21, p758 

    A definition of the term "enantiomorph," which refers to one of a pair of isomers, is presented.

  • Simple One-electron Invariants of Molecular Chirality. A. Luzanov; Dmitry Nerukh // Journal of Mathematical Chemistry;May2007, Vol. 41 Issue 4, p417 

    Pseudoscalar measures of electronic chirality for molecular systems are derived using the spectral moment theory applied to the frequency-dependent rotational susceptibility. In this scheme a one-electron chirality operator $$\hat{\kappa}$$ naturally emerges as a quantum counterpart of the...

  • racemic mixture.  // Hutchinson Dictionary of Scientific Biography;2005, p1 

    Mixture of equal quantities of two enantiomorphs (isomers with mirror-image molecular structures). Because the optical activity of each component exactly cancels that of the other, the racemic mixture as a whole is optically inactive.

  • Enantioselective magnetochiral photochemistry. Rikken, G. L. J. A.; Raupach, E. // Nature;6/22/2000, Vol. 405 Issue 6789, p932 

    Reports on development in enantioselective magnetochiral photochemistry. Importance of chirality, in which chemical and physical systems are the mirror images of each other, in biochemistry; Reactions involving chiral molecules often require the participation of on specific enantiomer, or...

  • Monitoring molecular chirality exchange by photon echoes. Šanda, František; Mukamel, Shaul // EPJ Web of Conferences;2013, Issue 41, p02025-p.1 

    Weconstructpulsepolarizationconfigurationsinheterodynefourwavemix- ingformonitoringultrafast(picosecond)exchangeratesbetweenopticalisomerswith axialchirality.Thisinformationisnotavailablefromlinearcirculardichroism,sinceenan- tiomersmaynotbeisolatedandracemateshowsnochiralsignal

  • Enhancement effects of (R) and (S) enantiomers and the racemate of a model enhancer on permeation of theophylline through human skin. V�vrov�, Katerina; Hrab�lek, Alexandr; Dole�al, Pavel // Archives of Dermatological Research;Aug2002, Vol. 294 Issue 8, p383 

    The conformation of a permeation enhancer, given their mechanism of action, could influence its enhancing properties, since the stratum corneum components form essentially a chiral environment. The racemate and both enantiomers of 6-aminohexanoic acid 2-octylester as model enhancers with one...

  • Comparative Molecular Model Estimation of the Affinity of Phenylethylamines to the Binding Sites of Membrane Transporters. Al'tshuler, R. // Pharmaceutical Chemistry Journal;Apr2005, Vol. 39 Issue 4, p169 

    Factors determining the difference in the affinity of phenylethylamines (PEAs) to the binding sites of membrane transporters have been studied using the molecular models of PEA enantiomers built in preferred conformations for such binding. In the molecules of PEA enantiomers having planar anti...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics