{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T12:15:47Z","timestamp":1783512947007,"version":"3.55.0"},"reference-count":93,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2022,10,22]],"date-time":"2022-10-22T00:00:00Z","timestamp":1666396800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004281","name":"National Science Centre of Poland","doi-asserted-by":"publisher","award":["DEC- 2017\/25\/B\/ST5\/01611"],"award-info":[{"award-number":["DEC- 2017\/25\/B\/ST5\/01611"]}],"id":[{"id":"10.13039\/501100004281","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Research Excellence Initiative of the University of Silesia in Katowice","award":["DEC- 2017\/25\/B\/ST5\/01611"],"award-info":[{"award-number":["DEC- 2017\/25\/B\/ST5\/01611"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>Photophysical properties of two Re(I) complexes [ReCl(CO)3(R-C6H4-terpy-\u03ba2N)] with remote amine groups, N-methyl-piperazinyl (1) and (2-cyanoethyl)methylamine (2), were investigated. The complexes show strong absorption in the visible region corresponding to metal-to-ligand charge transfer (1MLCT) and intraligand-charge-transfer (1ILCT) transitions. The energy levels of 3MLCT and 3ILCT excited-states, and thus photoluminescence properties of 1 and 2, were found to be strongly affected by the solvent polarity. Compared to the parent chromophore [ReCl(CO)3(C6H5-terpy-\u03ba2N)] (3), both designed complexes show significantly prolonged (by 1\u20132 orders of magnitude) phosphorescence lifetimes in acetonitrile and dimethylformamide, contrary to their lifetimes in less polar chloroform and tetrahydrofuran, which are comparable to those for 3. The femtosecond transient absorption (fsTA) measurements confirmed the interconversion between the 3MLCT and 3ILCT excited-states in polar solvents. In contrast, the emissive state of 1 and 2 in less polar environments is of predominant 3MLCT nature.<\/jats:p>","DOI":"10.3390\/molecules27217147","type":"journal-article","created":{"date-parts":[[2022,10,24]],"date-time":"2022-10-24T08:19:06Z","timestamp":1666599546000},"page":"7147","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Photoinduced Processes in Rhenium(I) Terpyridine Complexes Bearing Remote Amine Groups: New Insights from Transient Absorption Spectroscopy"],"prefix":"10.3390","volume":"27","author":[{"given":"Joanna","family":"Palion-Gazda","sequence":"first","affiliation":[{"name":"Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6539-5419","authenticated-orcid":false,"given":"Agata","family":"Sz\u0142apa-Kula","sequence":"additional","affiliation":[{"name":"Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mateusz","family":"Penkala","sequence":"additional","affiliation":[{"name":"Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7280-8979","authenticated-orcid":false,"given":"Karol","family":"Erfurt","sequence":"additional","affiliation":[{"name":"Department of Chemical Organic Technology and Petrochemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7688-6491","authenticated-orcid":false,"given":"Barbara","family":"Machura","sequence":"additional","affiliation":[{"name":"Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,10,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"998","DOI":"10.1021\/ja00811a008","article-title":"Nature of the Lowest Excited State in Tricarbonylchloro-1,10-Phenanthrolinerhenium(I) and Related Complexes","volume":"96","author":"Wrighton","year":"1974","journal-title":"J. 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