|
|
| Type |
Poster Presentation |
| Area |
Organic Chemistry |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 18일 (목요일) 11:00~12:30 |
| Code |
ORGN.P-158 |
| Subject |
New Macrocyclic Ion Pair Receptors Based on Indole Amides and Pyridines |
| Authors |
Han-byeol Choi, Sung Kuk Kim*
Department of Chemistry, Gyeongsang National University, Korea
|
| Abstract |
Heteroditopic macrocycles consisting of bis-indole amides and pyridines or polyethylene glycols were synthesized as ion pair receptors. The receptors were revealed to bind anions via hydrogen bonds between the NHs of the amide and indole subunits and cations using pyridines or the polyethylene glycol unit. For example, the receptors were found to recognized small anions such as the fluoride and the chloride anions with high selectivity. In this case, significant downfield shift of the proton signals of the amide and indole NHs was observed in 1H NMR spectra, which was attributable to their formation of hydrogen bonds with the anions. On the other hand, they are capable of binding the lithium cations selectively over other alkaline metal cations. In addition, it was proved by UV/Vis spectroscopic analysis that the receptors formed the complexes with LiCl in solution as well as in the solid state. |
| E-mail |
qufl1128@naver.com |
|
123rd General Meeting of the KCS