Turkish Journal of Chemistry
Abstract
In order to investigate the enantiomeric recognition abilities toward 2 chiral alkylammonium perchlorates (AmI, AmII) by ^1H-NMR titration method in CDCl_3, 4 chiral lariat ethers 8-11 with a (p-methoxyphenoxy) methyl flexible side arm were used. The most effective enantiomeric recognition was obtained by LCEs 9 and 11 toward AmII, by K_R/K_S 6.58 and K_S/K_R 6.63, respectively. The effect of macroring size, subunit of macroring, and side arm appeared to have strong influence on the binding ability of these alkylammonium ions.
DOI
10.3906/kim-1008-844
Keywords
Chiral lariat crown ethers, enantioselectivity, complexation properties, molecular recognition, NMR titration
First Page
171
Last Page
179
Recommended Citation
KÖYLÜ, MEHMET ZAFER; ARAL, TARIK; KARAKAPLAN, MEHMET; KOCAKAYA, ŞAFAK ÖZHAN; and HOŞGÖREN, HALİL
(2011)
"Enantioselective complexation of chiral lariat crown ethers and chiral primary alkylammonium perchlorates,"
Turkish Journal of Chemistry: Vol. 35:
No.
2, Article 1.
https://doi.org/10.3906/kim-1008-844
Available at:
https://journals.tubitak.gov.tr/chem/vol35/iss2/1