Quantum Yields of Singlet‐Oxygen Production by Some Natural Quinoid Fungal Metabolites and Derivatives | Zendy

AminianSaghafi Taraneh | Zendy; Nasini Gianluca | Zendy; Caronna Tullio | Zendy; Braun André M. | Zendy; Oliveros Esther | Zendy

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Quantum Yields of Singlet‐Oxygen Production by Some Natural Quinoid Fungal Metabolites and Derivatives

Author(s) -

AminianSaghafi Taraneh,

Nasini Gianluca,

Caronna Tullio,

Braun André M.,

Oliveros Esther

Publication year - 1992

Publication title -

helvetica chimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.74

H-Index - 82

eISSN - 1522-2675

pISSN - 0018-019X

DOI - 10.1002/hlca.19920750213

Subject(s) - planarity testing , chemistry , singlet oxygen , perylene , tautomer , singlet state , molecule , photochemistry , oxygen , quantum chemical , computational chemistry , stereochemistry , organic chemistry , crystallography , atomic physics , excited state , physics

Perylene quinone compounds of natural and syntheitc origin have been investigated for their quantum efficiency of singlet‐oxygen production (Φ Δ ). The results may be interpreted by a qualitative relation between Φ Δ and the planarity of the sensitizer molecules, highest values (0.8–0.9) being observed where planarity is favoring tautomeric structures. On the other hand, derivatives exhibiting non‐planar quinoid structures show lower Φ Δ , and methylated derivatives react photochemically.

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