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January 20, 2025
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Article

Luminescence and Generation of Reactive Oxygen Species in Solution by Ta6Br12 Clusters

Publicated to: CHEMISTRY-A EUROPEAN JOURNAL. 31 (10): e202403384- - 2025-02-17 31(10), DOI: 10.1002/chem.202403384

Authors:

Hernández, JS; Atienzar, P; Shamshurin, M; Benassi, E; Sokolov, MN; Feliz, M
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Affiliations

Novosibirsk State Univ, 2 Pirogov Str, Novosibirsk 630090, Russia - Author
Russian Acad Sci, Nikolaev Inst Inorgan Chem, Siberian Branch, 3 Akad Lavrentiev Ave, Novosibirsk 630090, Russia - Author
Univ Modena & Reggio Emilia, Dept Phys Informat & Math, 213-B Giuseppe Campi Str, I-41125 Modena, Italy - Author
Univ Politecn Valencia, Agencia Estatal Consejo Super Invest Cient, Inst Tecnol Quim, Avd Naranjos S-N, Valencia 46022, Spain - Author
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Abstract

An intrinsic metal cluster NIR-II emission of the {Ta6Br12}2+ aqua/hydroxocomplexes was determined in aqueous solutions under inert atmosphere. The photoluminescence (PL) is enhanced in D2O, and the lifetime scale expands from nanoseconds to microseconds. Possible cluster emission transitions have been assigned and analyzed from a computational perspective. In the presence of O2, the cluster compound kept its robustness but showed partial quenching of the PL. Stern-Volmer and laser-flash photolysis studies confirmed that quenching is mainly associated with O2 diffusion. Laser-flash photolysis experiments showed that singlet oxygen (1O2) was not detected under measurement conditions. Generation of peroxide and superoxide radical species after irradiation in D2O was confirmed by using luminol as a probe, whereas no hydroxide radical species were detected as evidenced by the emission of the 3-coumarin carboxylic acid (3-CCA) molecular sensor.
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Keywords

ComplexeLuminescenceMechanismQuantum chemical calculationReactive oxygen species (ros)Tantalum clusterTriplet-states

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal CHEMISTRY-A EUROPEAN JOURNAL due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2025, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Organic Chemistry.

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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-02:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 2 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

    It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

    • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
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    Leadership analysis of institutional authors

    This work has been carried out with international collaboration, specifically with researchers from: Italy; Russia.

    There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Hernandez, Jhon Sebastian) and Last Author (Feliz, Marta).

    the author responsible for correspondence tasks has been Feliz, Marta.

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    Awards linked to the item

    This research was funded by the Spanish Ministry of Science and Innovation (TED2021-130963B-C21, PID2021-123163OB-I00 and CEX2021-001230-S grants) funded by MCIN/AEI/10.13039/501100011033/and FEDER A way of making Europe. J.S.H. gratefully acknowledges to Programa Santiago Grisolia (Consejo Superior de Investigaciones Cientificas and Generalitat Valenciana; grant number GRISOLIA/2021/054). Computational resources were kindly provided by the Laboratory of complex compounds synthesis (Nikolaev Institute of Inorganic Chemistry SB RAS; supported by the Ministry of Science and Higher Education of the Russian Federation, no. 121031700313-8). CSIC for funding for open access charge. We thank the technical team at the Instituto de Tecnologia Quimica for providing us with all the facilities for all the characterizations.
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