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Chiral Solid Solutions for the NMR Analysis of Enantiomers: A Potential New Approach to Chiral Analysis
Tekijät: Karel D Klika
Kustantaja: HINDAWI PUBLISHING CORPORATION
Kustannuspaikka: NEW YORK; 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
Julkaisuvuosi: 2013
Journal: Journal of spectroscopy
Tietokannassa oleva lehden nimi: Journal of Spectroscopy
Lehden akronyymi: J.Spectrosc.
Artikkelin numero: 970654
Sivujen määrä: 6
ISSN: 2314-4920
DOI: https://doi.org/10.1155/2013/970654
Tiivistelmä
Differences between the solid-state C-13 CP-MAS NMR spectra of holemic samples of the two enantiomers of 2,2'-dihydroxy-1,1'-binaphthyl (binol) were not sufficiently emphatic to reliably distinguish them, though they are readily distinguishable from the spectrum of the bimate of the compound crystallized from an equimatic sample. Inducing an additional chiral environment by cocondensation with sucrose as a chiral selector (CS) provided a method to yield differential spectra for the two enantiomers and thus effect enantiodifferentiation by way of solid-state NMR using weak interactions from a CS.
Differences between the solid-state C-13 CP-MAS NMR spectra of holemic samples of the two enantiomers of 2,2'-dihydroxy-1,1'-binaphthyl (binol) were not sufficiently emphatic to reliably distinguish them, though they are readily distinguishable from the spectrum of the bimate of the compound crystallized from an equimatic sample. Inducing an additional chiral environment by cocondensation with sucrose as a chiral selector (CS) provided a method to yield differential spectra for the two enantiomers and thus effect enantiodifferentiation by way of solid-state NMR using weak interactions from a CS.
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