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Título:
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Photochemical site-selective synthesis of [70]methanofullerenes
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Autores:
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Vidal, Sara ;
Izquierdo, Marta ;
Kit Law, Wai ;
Jiang, Kui ;
Filippone, Salvatore ;
Perles, Josefina ;
Yan, He ;
Martín, Nazario
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Tipo de documento:
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texto impreso
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Editorial:
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RSC, 2016
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Química: Química orgánica
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Tipo = Artículo
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Resumen:
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Methanofullerenes such as the well-known [70]PCBM are commonly synthesized under harsh conditions to obtain the product as a mixture of site-isomers (namely a, b and minor c) due to the D5h symmetry of the C70 cage. We report the first site-selective synthesis of [70]methanofullerenes under light irradiation and low temperatures, thus avoiding time-consuming and highly expensive HPLC separations. Pure major site-isomers a-[70]PCBM and a-[70]DPM have been thus efficiently prepared including the crystal structure of 5b. Photovoltaic preliminary results revealed a slightly beneficial performance for a-pure [70]PCBM site-isomer devices.
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En línea:
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https://eprints.ucm.es/id/eprint/41726/1/preprint%20chem%20comm_12733.pdf
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![Photochemical site-selective synthesis of [70]methanofullerenes](./styles/zen/images/no_image.jpg)
