Results 201 to 210 of about 11,580 (259)

The development of biphasic chiral recognition in chiral separation

Chirality, 2018
AbstractIn chiral separation, enantioseparation factor is an important parameter which influences the resolution of enantiomers. In this current overview, a biphasic chiral recognition method is introduced to the readers. This method can significantly improve the enantioseparation factor in two‐phase solvent through adding lipophilic and hydrophilic ...
Xin-Yi, Huang, Kai-Jun, Quan, Dong, Pei, Jian-Fei, Liu, Duo-Long, Di   +4 more
openaire   +2 more sources

A vivid model of chiral recognition

Chirality, 1989
AbstractHands can be used to demonstrate the three‐point model of chiral recognition. The points of attachment are thumb, forefinger, and middle finger. This vivid model has the advantages of simplicity, perspicuity, and availability at any time, although two persons are necessary.
Meyer VR, Rais M
openaire   +3 more sources

Probability rule for chiral recognition

Chirality, 2004
AbstractMolecular Chirality is of central interest in biological studies because enantiomeric compounds, while indistinguishable by most inanimate systems, show profoundly different properties in biochemical environments. Enantioselective separation methods, based on the differential recognition of two optical isomers by a chiral selector, have been ...
Ran, Kafri, Doron, Lancet
openaire   +2 more sources

Electronic Dissymmetry in Chiral Recognition

Journal of the American Chemical Society, 2005
The pi-bonding of the beta-diketonate ligands in C2-symmetric (dike)2TiX2 complexes engenders a significant electronic dissymmetry, with the LUMO of the complex resembling a "tipped" dz2 orbital whose tilt with respect to the plane containing the metal and the two X groups is determined by the configuration at titanium.
Seth N, Brown, Everett T, Chu, Michael W, Hull, Bruce C, Noll   +3 more
openaire   +2 more sources

Chiral recognition of carbon nanoforms

Organic & Biomolecular Chemistry, 2012
The selective recognition of chiral carbon nanoforms poses a fundamental challenge. New design principles must be devised to construct hosts capable of enantiodiscrimination between species in which chirality does not arise from asymmetric carbon atoms.
Emilio M, Pérez, Nazario, Martín
openaire   +2 more sources

Chiral Recognition in Surface Explosion

Journal of the American Chemical Society, 2004
The vast majority of chiral compounds crystallize into racemic crystals. It has been predicted and was experimentally established as a rule that chiral molecules on surfaces are more easily separated into homochiral domains due to confinement into a plane and lower entropic contributions.
Behzadi B, Romer S, Fasel R, Ernst KH
openaire   +3 more sources

Chiral gelators for visual enantiomeric recognition

Soft Matter, 2022
Visual tools for enantiomeric recognition.
Diksha Gambhir, Sunil Kumar, Rik Rani Koner   +2 more
openaire   +2 more sources

Chiral Recognition in Cucurbituril Cavities

Journal of the American Chemical Society, 2006
For the first time, achiral cucurbiturils (CBs) were endowed with significant enantiomeric and distereomeric discrimination by incorporating a strong chiral binder. Calorimetric, nuclear magnetic, light-scattering, and mass spectral studies revealed that (S)-2-methylbutylamine (as a strong binder) can be discriminated by two enantiomeric supramolecular
Rekharsky, MV, Yamamura, H, Inoue, C, Kawai, M, Osaka, I, Arakawa, R, Shiba, K, Sato, A, Ko, YH, Selvapalam, N, Kim, K, Inoue, Y   +11 more
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Chirality and Chiral Recognition

2009
This review summarizes the literature survey on chiral recognition from a theoretical view point. Nevertheless, experimental results in the gas phase are reported when they are relevant for the theoretical calculations. The review is divided into the following sections: general considerations; experiment vs.
Ibon Alkorta, José Elguero
openaire   +1 more source

Chiral recognition by configurationally chiral cryptands

Journal of the Chemical Society, Chemical Communications, 1975
1,1′,4,4′-Tetra-O-triphenylmethyl-2,2′:3,3′-bis-O- oxydiethylenedi-L-threitol [LL-(3)] and 1,2:1′,2′:5,6:5′,6′-tetra-O-isopropylidene-3,3′:4,4′- bis-O-oxydiethylenedi-D-mannitol [DD-(4)] exhibit enantiomeric differentiation in complexation equilibria towards (±)-(RS)-α-phenylethylammonium hexafluorophosphate.
W. David Curtis, Dale A. Laidler, J. Fraser Stoddart, Graham H. Jones   +3 more
openaire   +1 more source