Fluorescence Quenching by Oxygen: “Debunking” a Classic Rule | Zendy

Cabrerizo Franco M. | Zendy; Arnbjerg Jacob | Zendy; Denofrio M. Paula | Zendy; ErraBalsells Rosa | Zendy; Ogilby Peter R. | Zendy

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Fluorescence Quenching by Oxygen: “Debunking” a Classic Rule

Author(s) -

Cabrerizo Franco M.,

Arnbjerg Jacob,

Denofrio M. Paula,

ErraBalsells Rosa,

Ogilby Peter R.

Publication year - 2010

Publication title -

chemphyschem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.016

H-Index - 140

eISSN - 1439-7641

pISSN - 1439-4235

DOI - 10.1002/cphc.201000002

Subject(s) - intersystem crossing , quenching (fluorescence) , fluorescence , excited state , photochemistry , chemistry , oxygen , state (computer science) , process (computing) , computer science , physics , organic chemistry , algorithm , optics , atomic physics , singlet state , operating system

New clothes for an old player: Oxygen‐induced deactivation of a fluorescent state can, in fact, proceed via S 1 →S 0 internal conversion and effectively compete with S 1 →T 1 intersystem crossing (see figure). It has long been considered that only the latter process occurs. An O 2 ‐dependent process that does not produce a triplet excited state can have significant photochemical and photobiological consequences.

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