Caterpillar track complexes in template-directed synthesis and correlated molecular motion.
Caterpillar track complexes in template-directed synthesis and correlated molecular motion.
复制标题
DOI:
10.1002/anie.201412293
复制
发表时间:
2015-04-27
影响因子:
16.6
通讯作者:
Anderson, Harry L.
中科院分区:
文献类型:
--
作者:
Liu, Shiqi;Kondratuk, Dmitry V.;Rousseaux, Sophie A. L.;Gil-Ramirez, Guzman;O'Sullivan, Melanie C.;Cremers, Jonathan;Claridge, Tim D. W.;Anderson, Harry L.
Small alterations to the structure of a star-shaped template totally change its mode of operation. The hexapyridyl template directs the conversion of a porphyrin dimer to the cyclic hexamer, but deleting one pyridine site changes the product to the cyclic decamer, while deleting two binding sites changes the product to the cyclic octamer. This surprising switch in selectivity is explained by the formation of 2:1 caterpillar track complexes, in which two template wheels bind inside the nanoring. Caterpillar track complexes can also be prepared by binding the hexapyridyl template inside the 8- and 10-porphyrin nanorings. NMR exchange spectroscopy (EXSY) experiments show that these complexes exhibit correlated motion, in which the conrotatory rotation of the two template wheels is coupled to rotation of the nanoring track. In the case of the 10-porphyrin system, the correlated motion can be locked by binding palladium(II) dichloride between the two templates.
登录
查看更多内容
影响因子:
21.8
作者:
Guo, Jun;Mayers, Paul C.;Hunter, Christopher A.
通讯作者:
Hunter, Christopher A.
影响因子:
15
作者:
Hiraoka, Shuichi;Okuno, Erika;Shionoya, Mitsuhiko
通讯作者:
Shionoya, Mitsuhiko
影响因子:
21.8
作者:
Omachi, Haruka;Nakayama, Takuya;Itami, Kenichiro
通讯作者:
Itami, Kenichiro
影响因子:
15
作者:
Hiraoka, S;Shiro, M;Shionoya, M
通讯作者:
Shionoya, M
影响因子:
4.9
作者:
Carella, A;Jaud, J;Launay, JP
通讯作者:
Launay, JP