We report an anthracene-containing bistable [2]rotaxane that can respond to the acidic/basic reagents, the change of the solvent polarity, and the counteranions, etc. The movement can generate remarkable, high-contrast fluorescent intensity change, along with an obvious color change.
作者:Maher Fathalla、Nathan L. Strutt、Srinivasan Sampath、Khabiboulakh Katsiev、Karel J. Hartlieb、Osman M. Bakr、J. Fraser Stoddart
DOI:10.1039/c5cc03717d
日期:——
Daisy chains and organogels have been prepared by utilising noncovalent interactions between viologens and pillar[5]arenes together with stacked porphyrins.
We report a pH-controllable molecular switch whose switching can be monitored by the naked eye; this system involves the formation of a complex between a [2]rotaxane—featuring dibenzylammonium and 4,4′-bipyridinium stations—and a TTF-side-walled molecular clip.
Fluorescence Enhancement of a Porphyrin-Viologen Dyad by Pseudorotaxane Formation with Cucurbit[7]uril
作者:Maher Fathalla、Nathan L. Strutt、Jonathan C. Barnes、Charlotte L. Stern、Chenfeng Ke、J. Fraser Stoddart
DOI:10.1002/ejoc.201402018
日期:2014.5
known to form strong supramolecular complexes with cucurbit[7]uril, as well as participate in electron-transfer processes with donor systems. We describe the use of cucurbit[7]uril to modulate the electron transfer between a hybrid porphyrin (donor) and a viologen (acceptor) dyad. The X-ray crystal structure of these hybrids reveals the formation of 1D coordination polymers held together through zinc
已知双阳离子紫精与葫芦 [7] 脲形成强超分子复合物,并参与与供体系统的电子转移过程。我们描述了使用葫芦 [7] 脲来调节杂化卟啉(供体)和紫精(受体)二元组之间的电子转移。这些杂化物的 X 射线晶体结构揭示了通过固态锌配位结合在一起的一维配位聚合物的形成。
Fang, Lei; Hmadeh, Mohamad; Wu, Jishan, Journal of the American Chemical Society, 2009, vol. 131, p. 7126 - 7134
作者:Fang, Lei、Hmadeh, Mohamad、Wu, Jishan、Olson, Mark A.、Spruell, Jason M.、et al.