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2021-01-15

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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/185131

Accessing Lanthanide-to-Lanthanide Energy Transfer in a Family of Site-Resolved [LnIIILnIII'] Heterometallic Complexes

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Recurs relacionat

https://doi.org/10.1002/chem.202005327

Resum

The ligand H3 L (6-[3-oxo-3-(2-hydroxyphenyl)propionyl]pyridine-2-carboxylic acid), which exhibits two different coordination pockets, has been exploited to engender and study energy transfer (ET) in two dinuclear [LnIII LnIII '] analogues of interest, [EuYb] and [NdYb]. Their structural and physical properties have been compared with newly synthesised analogues featuring no possible ET ([EuLu], [NdLu], and [GdYb]) and with the corresponding homometallic [EuEu] and [NdNd] analogues, which have been previously reported. Photophysical data suggest that ET between EuIII and YbIII does not occur to a significant extent, whereas emission from YbIII originates from sensitisation of the ligand. In contrast, energy migration seems to be occurring between the two NdIII centres in [NdNd], as well as in [NdYb], in which YbIII luminescence is thus, in part, sensitised by ET from Nd. This study shows the versatility of this molecular platform to further the investigation of lanthanide-to-lanthanide ET phenomena in defined molecular systems.

Matèries

Sistemes complexos, Transferència d'energia

Matèries (anglès)

Complex systems, Energy transfer

Citació

Col·leccions

Articles publicats en revistes (Química Inorgànica i Orgànica)
Articles publicats en revistes (Institut de Nanociència i Nanotecnologia (IN2UB))

Citació

ABAD GALÁN, Laura, et al. Accessing Lanthanide-to-Lanthanide Energy Transfer in a Family of Site-Resolved [LnIIILnIII'] Heterometallic Complexes. Chemistry-A European Journal. 2021. Vol. 27, num. 25, pags. 7288-7299. ISSN 0947-6539. [consulted: 11 of August of 2026]. Available at: https://hdl.handle.net/2445/185131

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