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Fluorescence Enhancement of a Porphyrin–Viologen Dyad by Pseudorotaxane Formation with Cucurbit[7]uril (Eur. J. Org. Chem. 14/2014)
Author(s) -
Fathalla Maher,
Strutt Nathan L.,
Barnes Jonathan C.,
Stern Charlotte L.,
Ke Chenfeng,
Stoddart J. Fraser
Publication year - 2014
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.201490036
Subject(s) - viologen , chemistry , porphyrin , cucurbituril , intramolecular force , fluorescence , photochemistry , intermolecular force , electron transfer , supramolecular chemistry , stereochemistry , crystallography , molecule , organic chemistry , physics , quantum mechanics , crystal structure
The cover picture shows a graphical representation of a porphyrin–viologen‐containing dyad that participates in a strong intermolecular interaction with a cucurbit[7]uril macrocycle in an aqueous environment. Upon formation of this host–guest complex between the viologen and macrocycle, the intramolecular electron‐transfer interaction within the dyad is obstructed, which allows the porphyrin core to exhibit strong fluorescence. Details are discussed in the Short Communication by J. Fraser Stoddart et al. on p. 2873 ff. Image courtesy of Aleksander Bosoy (Stoddart Research Group, Northwestern University).