Synthesis of cage-type molecules with pi-cavity and selective gas-phase cation complexation
SCIE
SCOPUS
- Title
- Synthesis of cage-type molecules with pi-cavity and selective gas-phase cation complexation
- Authors
- Kim, J; Kim, YK; Park, N; Hahn, JH; Ahn, KH
- Date Issued
- 2005-09-02
- Publisher
- AMER CHEMICAL SOC
- Abstract
- Cage-type molecules composed of phenyl walls and caps were synthesized as hosts for the binding of ammonium and alkali metal cations through cation-T interactions. The synthesis involved a key cyclization step, which was markedly dependent on the capping component. Binding studies by electrospray ionization mass spectrometry toward lithium, sodium, potassium, and ammonium cations showed that the cage-type molecules selectively form a 1: 1 complex. A competitive binding study showed that cage 3c (R = Et, R' = OMe) has a preference toward lithium cation while cage 4b (R = Me, R' = OMe) has a similar preference toward both lithium and ammonium ion in the presence of others. This selectivity pattern was tentatively explained by the gate size of the cage-type compounds, not by their cavity size.
- Keywords
- BINDING PROPERTIES; ION
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/24417
- DOI
- 10.1021/JO050654W
- ISSN
- 0022-3263
- Article Type
- Article
- Citation
- JOURNAL OF ORGANIC CHEMISTRY, vol. 70, no. 18, page. 7087 - 7092, 2005-09-02
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.