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Pregled bibliografske jedinice broj: 564709

Časopis

Autori: Blažek, Vesna; Mlinarić-Majerski, Kata; Qin, Wenwu; Basarić, Nikola
Naslov: Photophysical study of the aggregation of naphthyl-, anthryl- and pyrenyl- adamantanebisurea derivatives
Izvornik: Journal of photochemistry and photobiology. A, Chemistry (1010-6030) 229 (2012), 1; 1-10
Vrsta rada: članak
Ključne riječi: aggregation; anthracenes; fluorescence; naphthalenes; pyrenes; ureas; photophysics
Sažetak:
Adamantaneurea derivatives 1-13 were synthesized and their photophysical properties investigated. The compounds 1-13 are comprised of a rigid adamantane moiety, 1 or 2 urea groups and different chromophores, as well as methylene spacer between the adamantane and the urea and/or between the urea and the chromophores. Fluorescence quantum yields and singlet excited state lifetimes were measured in CH3CN and DMSO. It was found that molecules with methylene spacer between the adamantane and the urea aggregate in CH3CN, whereas aggregation was not observed in DMSO. The highest tendency to aggregation was observed for 9-aminoanthracene derivative 10 and pyrene derivative 13 which aggregate in both solvents. The aggregation probably takes place due to intermolecular H-bonds between the ureas and π, π-stacking of the aromatic chromophores. Pyrene 13 probably gives rise to excimers and intermolecular aggregates.
Projekt / tema: 098-0982933-2911
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Kemija
URL Internet adrese: http://dx.doi.org/10.1016/j.jphotochem.2011.12.005
http://www.sciencedirect.com/science/article/pii/S101060301100503X
http://ac.els-cdn.com/S101060301100503X/1-s2.0-S101060301100503X-main.pdf?_tid=0aa843b8-a8e2-11e2-8286-00000aab0f6b&acdnat=1366370137_af95c0ed7157eba750ab36458025ead6
Broj citata:
Altmetric:
DOI: 10.1016/j.jphotochem.2011.12.005
URL cjelovitog teksta: http://dx.doi.org/10.1016/j.jphotochem.2011.12.005
Google Scholar: Photophysical study of the aggregation of naphthyl-, anthryl- and pyrenyl- adamantanebisurea derivatives
Upisao u CROSBI: eluksa@irb.hr (eluksa@irb.hr), 14. Pro. 2011. u 09:42 sati



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