Exciton and charge-transfer interactions in nonconjugated merocyanine dye dimers: novel solvatochromic behavior for tethered bichromophores and excimers

L Lu, RJ Lachicotte, TL Penner, J Perlstein…

Index: Lu, Liangde; Lachicotte, Rene J.; Penner, Thomas L.; Perlstein, Jerry; Whitten, David G. Journal of the American Chemical Society, 1999 , vol. 121, # 36 p. 8146 - 8156

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Citation Number: 67

Abstract

A series of merocyanine dye dimers tethered at different sites with spacers ranging from 0 to 5 methylene groups and the corresponding monomer have been synthesized. The formation, structure, and excited-state properties of the consequent merocyanine dye “aggregates” in solutions and in rigid glass have been studied by UV/visible absorption spectra, steady-state fluorescence, and fluorescence lifetime measurements. The dimers ...