Coumarin–BODIPY hybrids by heteroatom linkage: versatile, tunable and photostable dye lasers for UV irradiation
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2015
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Esnal, Ixone
Duran-Sampedro, Gonzalo
Bañuelos, Jorge
García-Moreno, Inmaculada
Macías, Maria Ángeles
Peña-Cabrera, Eduardo
López-Arbeloa, Iñigo
De la Moya, Santiago
Ortiz, Maria José
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Royal Society Chemistry
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Esnal, I., et al. «Coumarin–BODIPY Hybrids by Heteroatom Linkage: Versatile, Tunable and Photostable Dye Lasers for UV Irradiation». Physical Chemistry Chemical Physics, vol. 17, n.o 12, 2015, pp. 8239-47. DOI.org (Crossref), https://doi.org/10.1039/C5CP00193E.
Abstract
Linking amino and hydroxycoumarins to BODIPYs through the amino or hydroxyl group lets the easy construction of unprecedented photostable coumarin–BODIPY hybrids with broadened and enhanced absorption in the UV spectral region, and outstanding wavelength-tunable laser action within the green-to-red spectral region (∼520–680 nm). These laser dyes allow the generation of a valuable tunable UV (∼260–350 nm) laser source by frequency doubling, which is essential to study accurately the photochemistry of biological molecules under solar irradiation. The tunability is achieved by selecting the substitution pattern of the hybrid. Key factors are the linking heteroatom (nitrogen vs. oxygen), the number of coumarin units joined to the BODIPY framework and the involved linking positions.