{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T12:36:09Z","timestamp":1791549369643,"version":"4.3.4"},"reference-count":55,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2025,7,16]],"date-time":"2025-07-16T00:00:00Z","timestamp":1752624000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Russian Scince Foundation","award":["25-13-00399"],"award-info":[{"award-number":["25-13-00399"]}]},{"name":"Russian Scince Foundation","award":["FFUU-2025-0006"],"award-info":[{"award-number":["FFUU-2025-0006"]}]},{"name":"Institute of Spectroscopy of the Russian Academy of Sciences","award":["25-13-00399"],"award-info":[{"award-number":["25-13-00399"]}]},{"name":"Institute of Spectroscopy of the Russian Academy of Sciences","award":["FFUU-2025-0006"],"award-info":[{"award-number":["FFUU-2025-0006"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Achieving high quantum yields for Yb3+ ion emission in complexes with organic ligands is a challenging task, as most Yb3+ complexes with such ligands typically exhibit efficiencies below 3.5%. Our research demonstrates that the introduction of heavy atom-containing ancillary ligands, such as TPPO or TPAO, along with the careful engineering of the main \u03b2-diketone ligand, can increase the luminescence efficiency up to 20-fold by the alteration of the energy migration pathway. It is demonstrated that the combination of two distinct organic ligands leads to the blockage of singlet\u2013triplet intersystem crossing (ISC), alongside electronic energy transfer from \u03b2-diketone to Yb3+ ions through charge transfer states. The synthesized complexes exhibit quantum yields of 6.5% and 7.0% in the solid state, which places them at the top globally among this class of materials with simple non-deuterated and non-fluorinated ligands.<\/jats:p>","DOI":"10.3390\/ijms26146814","type":"journal-article","created":{"date-parts":[[2025,7,16]],"date-time":"2025-07-16T12:55:00Z","timestamp":1752670500000},"page":"6814","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Intermolecular Charge Transfer Induced Sensitization of Yb3+ in \u03b2-Diketone Coordination Compounds with Excellent Luminescence Efficiency"],"prefix":"10.3390","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-2158-0986","authenticated-orcid":false,"given":"Trofim A.","family":"Polikovskiy","sequence":"first","affiliation":[{"name":"P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy 1. Prospect, 119991 Moscow, Russia"},{"name":"Moscow Institute of Physics and Technology, Institutsky Lane 9, 141700 Dolgoprudny, Moscow Region, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-7329-1279","authenticated-orcid":false,"given":"Daniil D.","family":"Shikin","sequence":"additional","affiliation":[{"name":"Chemistry Department, M.V. Lomonosov Moscow State University, Leninskie Gory Str., Building 1\/3, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vladislav M.","family":"Korshunov","sequence":"additional","affiliation":[{"name":"P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy 1. Prospect, 119991 Moscow, Russia"},{"name":"Bauman Moscow State Technical University, 5\/1 2-ya Baumanskaya Str., 105005 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6290-8880","authenticated-orcid":false,"given":"Victoria E.","family":"Gontcharenko","sequence":"additional","affiliation":[{"name":"P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy 1. Prospect, 119991 Moscow, Russia"},{"name":"Faculty of Chemistry, National Research University Higher School of Economics, 20 Miasnitskaya Str., 101000 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3284-5019","authenticated-orcid":false,"given":"Mikhail T.","family":"Metlin","sequence":"additional","affiliation":[{"name":"P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy 1. Prospect, 119991 Moscow, Russia"},{"name":"Bauman Moscow State Technical University, 5\/1 2-ya Baumanskaya Str., 105005 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3689-9877","authenticated-orcid":false,"given":"Nikolay P.","family":"Datskevich","sequence":"additional","affiliation":[{"name":"P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy 1. Prospect, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marat M.","family":"Islamov","sequence":"additional","affiliation":[{"name":"Chemistry Department, M.V. Lomonosov Moscow State University, Leninskie Gory Str., Building 1\/3, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Victor O.","family":"Kompanets","sequence":"additional","affiliation":[{"name":"Institute of Spectroscopy of the Russian Academy of Sciences, 5 Fizicheskaya Ul., 108840 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3536-5849","authenticated-orcid":false,"given":"Sergey V.","family":"Chekalin","sequence":"additional","affiliation":[{"name":"Institute of Spectroscopy of the Russian Academy of Sciences, 5 Fizicheskaya Ul., 108840 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuriy A.","family":"Belousov","sequence":"additional","affiliation":[{"name":"P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy 1. Prospect, 119991 Moscow, Russia"},{"name":"Chemistry Department, M.V. Lomonosov Moscow State University, Leninskie Gory Str., Building 1\/3, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9860-4141","authenticated-orcid":false,"given":"Ilya V.","family":"Taydakov","sequence":"additional","affiliation":[{"name":"P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy 1. 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