Enantiomeric recognition of aralkyl ammonium salts by chiral pyridino-18-crown-6 ligands: Use of circular dichroism spectroscopy

✍ Scribed by László Somogyi; Péter Huszthy; Jerald S. Bradshaw; Reed M. Izatt; Miklós Hollósi

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 111 KB
• Volume: 9
• Category: Article
• ISSN: 0899-0042
• DOI: 10.1002/(sici)1520-636x(1997)9:5/6<545::aid-chir22>3.0.co;2-n

✦ Synopsis

CD studies were performed on the enantiomeric recognition of chiral aralkyl ammonium salts 1-3 by chiral pyridino-18-crown-6 ligands 4 and 6. Heterochiral complexing was found to result in larger spectral effects in both the 1 L b and 1 L a band regions of the chiral crown ethers. Based on the results reported herein, CD spectroscopy can be an efficient tool for discriminating between enantiomeric chiral aralkyl ammonium salts and determining the stoichiometry and relative stability of their complexes with chiral pyridino-18-crown-6 ligands.