Photoreversible [2] Catenane via the Host鈥揋uest Interactions between a Palladium Metallacycle and 尾-Cyclodextrin
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- 作者：Dengqing Zhang ; Yong Nie ; Manik Lal Saha ; Zuoli He ; Long Jiang ; Zhixuan Zhou ; Peter J. Stang
- 刊名：Inorganic Chemistry
- 出版年：2015
- 出版时间：December 21, 2015
- 年：2015
- 卷：54
- 期：24
- 页码：11807-11812
- 全文大小：474K
- ISSN：1520-510X
文摘
We report the efficient preparation of an A2D2 (A = acceptor and D = donor) metallacycle 2 = [(en)2Pd2(1)2](NO3)4, using the coordination driven self-assembly of trans-azobenzene based bispyridyl ligand 1 and (en)Pd(NO3)2 (en = ethylenediamine). In the metallacycle, the trans-azobenzene units serve both as a structural element and as sites for subsequent host鈥揼uest chemistry with 尾-cyclodextrin, leading to the formation of a [2] catenane 3. This catenation process is reversible and can be switched off and on in a photocontrollable manner via the trans鈥?i>cis isomerization of the azobenzene units.