Fluorescence Enhancement of a Porphyrin–Viologen Dyad by Pseudorotaxane Formation with Cucurbit[7]uril. Issue 14 (7th March 2014)

• Record Type: Journal Article
• Authors: Fathalla, Maher; Strutt, Nathan L.; Barnes, Jonathan C.; Stern, Charlotte L.; Ke, Chenfeng; Stoddart, J. Fraser
• Is Part Of: European journal of organic chemistry. Issue 14(2014)
• Page Start: 2873
• Page End: 2877
• Publication Date: 2014-03-07
• Subjects: Supramolecular chemistry -- Molecular recognition -- Porphyrinoids -- Cucurbiturils; Chemistry, Organic -- Periodicals; Organic compounds -- Synthesis -- Periodicals; Bioorganic chemistry -- Periodicals; Chemistry, Physical organic -- Periodicals; 547
• DOI: 10.1002/ejoc.201402018
• Languages: English
• ISSNs: 1434-193X

Abstract

Abstract: 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. Abstract : The electron‐transfer processes within a donor–acceptor dyad can be readily controlled through the formation of a pseudorotaxane between a viologen acceptor and cucurbit[7]uril.