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Title: Accessing Lanthanide-to-Lanthanide Energy Transfer in a Family of Site-Resolved [LnIIILnIII'] Heterometallic Complexes
Author: Abad Galán, Laura
Aguilà Avilés, David
Guyot, Yannick
Velasco, Verónica
Roubeau, Olivier
Teat, Simon J.
Massi, Massimiliano
Aromí Bedmar, Guillem
Keywords: Sistemes complexos
Transferència d'energia
Complex systems
Energy transfer
Issue Date: 15-Jan-2021
Publisher: Wiley-VCH
Abstract: 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.
Note: Versió postprint del document publicat a:
It is part of: Chemistry-A European Journal, 2021, vol. 27, num. 25, p. 7288-7299
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ISSN: 0947-6539
Appears in Collections:Articles publicats en revistes (Institut de Nanociència i Nanotecnologia (IN2UB))
Articles publicats en revistes (Química Inorgànica i Orgànica)

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