A new family of 5-styrylcoumarins exhibit E–Z isomerization around the Cα[DOUBLE BOND]Cβ bond with large extinction coefficients, medium-lived excited states, and moderate fluorescence quantum yields (see picture). The alteration of these photophysical properties is also corroborated by computational studies.
SYNTHESIS, ABSORPTION AND EMISSION PROPERTIES OF A NEW FAMILY OF STYRYL COUMARINS. POTENTIAL UTILITY AS MEMORY MEDIA Sérgio Martins,[a] João Avó, [b] A. Jorge Parola, [b] João C. Lima, [b] Paula S. Branco[b] and António Pereira[a] [a] Centro de Química, Departamento de Química, Universidade de Évora, Évora, Portugal, sergiomamartins@gmail.com [b] REQUIMTE, Departamento de Química, Faculdade de Ciências e Te...
Photochromism of 5-styryl coumarins: potential utility as memory media Sérgio Martins1, João Avó2, A. Jorge Parola2, João C. Lima2, Paula S. Branco2, João Paulo Ramalho1 and António Pereira1 1Centro de Química, Departamento de Química, Universidade de Évora, Évora, Portugal. 2REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Portugal. Photochromism, the rever...
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