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Volumn 15, Issue 8, 2011, Pages 1208-1229

High-Performance liquid chromatographic enantioseparation of atropisomeric biphenyls on seven chiral stationary phases

Author keywords

Atropisomeric biphenyls; Enantiomeric separation; High performance liquid chromatography; Molecular recognition; Polymetacrylate stationary phases; Polysaccharide stationary phases

Indexed keywords

ETHANOL; HEXANE; HIGH PERFORMANCE LIQUID CHROMATOGRAPHY;

EID: 79953312677     PISSN: 13852728     EISSN: None     Source Type: Journal    
DOI: 10.2174/138527211795203068     Document Type: Article
Times cited : (14)

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    • Computational studies on biphenyl derivatives. Analysis of the conformational mobility, molecular electrostatic potential, and dipole moment of chlorinated biphenyl: Searching for the rationalization of the selective toxicity of polychlorinated biphenyls (PCBs)
    • Chana, A.; Concejero, M.A.; de Frutos, M.; Gonzáles, M.J.; Herradón, B. Computational studies on biphenyl derivatives. Analysis of the conformational mobility, molecular electrostatic potential, and dipole moment of chlorinated biphenyl: searching for the rationalization of the selective toxicity of polychlorinated biphenyls (PCBs). Chem. Res. Toxicol. 2002, 15, 1514-1526.
    • (2002) Chem. Res. Toxicol , vol.15 , pp. 1514-1526
    • Chana, A.1    Concejero, M.A.2    de Frutos, M.3    Gonzáles, M.J.4    Herradón, B.5
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    • Note
    • This effect was observed not only for unsymmetric substituted 10 and 11, but also for symmetric 1, 6, 7, 8, 9, 3. Taking into account that the dipole moment varies with the conformation of biphenyls and that the dipole of each ring can influence the conformation of biphenyl [53], the orthogonal geometry minimizes the steric interactions between ortho substituents but at expense of π-electron overlap. In this situation the unsymmetrical distribution of electron density in the near-orthogonal geometry can be related to the decreased π-electron overlap and, thus, to a sort of compensation to minimize the dipole moment.


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