Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Synthesis, Photophysical, and Chemiexcitation Properties of Luminol-Fullerene Dyads: Toward Chemiexcitation Electron Transfer
Δημιουργός/Συγγραφέας:	Mikroulis, Theodoros Rodríguez-Muñiz, Gemma M [EL] Τζέλη, Δήμητρα[EN] Tzeli, Demeter Rotas, Georgios Miranda, Miguel A Vougioukalakis, Georgios C
Ημερομηνία:	2025-07-17
Γλώσσα:	Αγγλικά
ISSN:	0947-6539 1521-3765
DOI:	10.1002/chem.202404418
Άλλο:	40518447
Περίληψη:	Fullerene-based donor-acceptor (D-A) dyads have been extensively studied for their unique electronic properties, with applications in photoinduced energy conversion devices. In these systems, dynamic quenching of the excited donor's emission occurs, via energy or electron transfer to the fullerene acceptor. However, there are no reports on fullerene dyads bearing chemiluminescent donor analogues. In this context, the synthesis of two luminol-fullerene D-A dyads, bridged with alkyl chains of different lengths, is reported herein. The electronic communication between the two moieties was thoroughly evaluated, following either the photo- or chemi-excitation of the linked units. Steady state and time-resolved absorption studies, combined with emission techniques, were employed to monitor the deactivation fate of excited species. In general, a significant quenching of the excited luminol-derived emission signals was observed, revealing detectable intramolecular interactions between the two moieties. Unlike what is usually observed in other luminol-based D-A systems, quenching of the excited species generated upon photo- and chemi-excitation of the luminol-fullerene dyads is attributed to electron rather than energy transfer. This was found to be consistent with the estimated Gibbs energy of photoinduced electron transfer and with DFT theoretical calculations.
Τίτλος πηγής δημοσίευσης:	Chemistry (Weinheim an der Bergstrasse, Germany)
Τόμος/Κεφάλαιο:	31
Τεύχος:	40
Θεματική Κατηγορία:	[EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry [EL] Νανοτεχνολογία[EN] Nanotechnology
Λέξεις-Κλειδιά:	chemiluminescence donor‐acceptor electron transfer fullerene luminol
Χρηματοδοτικό πρόγραμμα:	Horizon 2020
Αναγνωριστικό χρηματοδοτικού προγράμματος:	712921
Κάτοχος πνευματικών δικαιωμάτων:	© 2025 The Author(s). Chemistry – A European Journal published by Wiley-VCH GmbH
Όροι και προϋποθέσεις δικαιωμάτων:	This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https://doi.org/10.1002/chem.202404418
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο