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|
| Type |
Poster Presentation |
| Area |
Organic Chemistry |
| Room No. |
Grand Ballroom |
| Time |
10월 18일 (목요일) 11:00~12:30 |
| Code |
ORGN.P-82 |
| Subject |
Oxoanion Recognition by a Molecular Cage |
| Authors |
Juhyun Oh, Sung Kuk Kim*
Department of Chemistry, Gyeongsang National University, Korea
|
| Abstract |
A 3-dimensional cage molecule 1 was synthesized by following multistep synthetic procedure. Cage 1 contains both hydrogen bonding donors such as amides and pyrroles and hydrogen bonding acceptors such as imines. 1H NMR spectral titrations showed that cage 1 binds oxoanions such as the dihydrogen phosphate, the hydrogen sulfate, and the sulfate anion via slow binding/release equilibriums on the 1H NMR time scale. These findings led us to conclude that cage 1 has an ability to bind such oxoanions with relatively high affinity as compared to other anions including halide anions. The 1:1 binding stoichiometry between the receptor and the anions were proved by Job’s plot experiments. Single crystal X-ray diffraction analysis provided further evidence that receptor 1 forms a 1:1 complex with the dihydrogen phosphate via multiple hydrogen bonds. |
| E-mail |
2016210110@gnu.ac.kr |
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122nd General Meeting of the KCS