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Chromophore specific photoreactivity in 2,3,4-Tri(1,2-naphthoquinone-2-diazide-5-sulfonyl-oxy)-benzophenone (1994)

Schuster, C. ; Bendig, J. ; Neuman, K.

New York, NY : Wiley-Blackwell

Journal für Praktische Chemie/Chemiker-Zeitung 336 (1994), S. 658-662

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Details

ISSN: 0941-1216

Schlagwort(e): Chemistry ; Organic Chemistry

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: Different electronic structures for the three 1,2-naphthoquinone-2-diazide (NQD) chromophores in 2,3,4-tri (1,2-naphthoquinone-2-diazide-5-sulfonyl-oxy)-benzophenone were detected using 1H NMR spectroscopy. The NQD substituent in the o-position of the benzophenone is influenced by intramolecular through space interactions with the benzophenone part of the molecule. The change in the electronic structure is the reason for the obtained different photoreactivity of the o-NQD chromophore compared with m-NQD and p-NQD. The relative quantum yields of photolysis are 0.3 (o-NQD) and 0.9/1.0 (m-NQD/p-NQD).

Zusätzliches Material: 2 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/prac.19943360805

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