- Title
- Host-guest complexes of cucurbit[8]uril with some pentaerythritol derivative guests
- Creator
- Li, Xian-Mei; Fan, Fan; Lu, Jing-Song; Xue, Sai-Feng; Zhang, Yun-Qian; Zhu, Qian-Jiang; Tao, Zhu; Lawrance, Geoffrey A.; Wei, Gang
- Relation
- New Journal of Chemistry Vol. 35, Issue 5, p. 1088-1095
- Publisher Link
- http://dx.doi.org/10.1039/C0NJ00752H
- Publisher
- Royal Society of Chemistry
- Resource Type
- journal article
- Date
- 2011
- Description
- A series of first generation dendritic guests from pentaerythritol derivatives have been designed and synthesized. Investigation of the complex structures of cucurbit[8]uril (Q[8]) and the guests based on the 1H NMR technique have revealed that the host Q[8] selectively included different branch(es) of the first generation dendritic guests and formed inclusion complexes with different structural conformations. The experimental results obtained from electronic absorption spectroscopy showed that the 1 : 1 ratio of Q[8]-based host–guest inclusion complexes have moderate stability with an average formation constants of 104 L mol−1. The single crystal structures of some of the guests (g5 and g6) and Q[8]–guest complexes (Q[8]-g4 and Q[8]-g6) further confirm but in some cases contradict the research results of the 1H NMR technique and electronic absorption spectroscopy in aqueous solution.
- Subject
- pentaerythritol derivatives; cucurbit[8]uril; electronic absorption spectroscopy; crystal structures
- Identifier
- http://hdl.handle.net/1959.13/1325151
- Identifier
- uon:25199
- Identifier
- ISSN:1144-0546
- Language
- eng
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