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Benzothiazolium-π-thiazole-dicyanomethanides: newnonlinearopticalchromophores  

AuthorsAndreu, Raquel; Galán, Elena; Garín, Javier; Orduna, Jesús ; Alicante, Raquel; Villacampa, Belén
Issue Date2010
CitationTetrahedron Letters 51(52): 6863-6866 (2010)
AbstractA series of merocyanines with a benzothiazolylidene donor and a quinoidal thiazole moiety have been synthesized. Experimental results and theoretical calculations show that these compounds have zwitterionic ground states and negative second-order optical nonlinearities. Unlike most merocyanines, the degree of charge transfer does not decrease on increasing the separation between the donor and the acceptor groups, an unexpected feature related to the presence of the proaromatic thiazole fragment.
Identifiersdoi: 10.1016/j.tetlet.2010.10.103
issn: 0040-4039
Appears in Collections:(ICMA) Artículos
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