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Fluorescence Enhancement of a Porphyrin–Viologen Dyad by Pseudorotaxane Formation with Cucurbit[7]uril
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.201402018
Subject(s) - viologen , chemistry , supramolecular chemistry , porphyrin , cucurbituril , electron transfer , photochemistry , fluorescence , electron donor , acceptor , crystallography , crystal structure , organic chemistry , catalysis , physics , quantum mechanics , condensed matter physics
Dicationic viologen species are 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 coordination in the solid state.