Fluorescence of covalently bound zinc porphyrin—viologen complexes

✍ Scribed by Georges Blondeel; Denis De Keukeleire; Anthony Harriman; Lionel R. Milgrom

• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 575 KB
• Volume: 118
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(85)85270-2

✦ Synopsis

A senes of porphyrins covalently bound lo a smgle methyl viologen moiety has been synthesised. Fhiorescence from the porphyrin is quenched relative LO the parenl porphyrin; &e actual yseld depends markedly upon [he site of attachment and Be length of the chain separating the two reactants Increasing dze number of v~ologens atmched to the porphyrin nng and using non-melhylaled tiofogen can increase the fh~orescence quenching efficiency. In no case was it possible LO dciect long-lived redor ion products originaling from the nuorescence quenching process.