期刊
ADVANCED FUNCTIONAL MATERIALS
卷 26, 期 16, 页码 2756-2769出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201505051
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资金
- Spanish Ministerio de Economia y Competitividad [MAT2014-51937-C3-1-P, MAT2014-51937-C3-2-P, MAT2014-51937-C3-3-P, MAT2015-68837-REDT]
- Gobierno Vasco [IT339-10]
- Spanish Ministerio de Economia y Competitividad
The design and synthesis of the first organic dyes enabling spontaneous formation of stable J-aggregates in common organic solvents without additives is described. The new dyes are O-BODIPYs with a B-spiranic 4,4-diacyloxyl substitution pattern. Key to the effectiveness of the J-aggregation process is the high conformational rigidity of the B-spiranic molecular design as well as the orthogonal disposition of the B-diacyloxyl substituent and the meso-aryl group with respect to the mean plane of the boradiazaindacene. Atomistic simulations, both in vacuum and in a solvent cage, support the dynamics of the J-aggregation process as well as its dependence on the alkylation pattern of the BODIPY chromophore. A detailed analysis of the photophysical and laser properties of the new dyes provides convincing evidence for the unambiguous assignment of these J-aggregates and their dependence on the environmental conditions.
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