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Photophysical study of the aggregation of naphthyl-, anthryl- and pyrenyl- adamantanebisurea derivatives


Blažek, Vesna; Mlinarić-Majerski, Kata; Qin, Wenwu; Basarić, Nikola
Photophysical study of the aggregation of naphthyl-, anthryl- and pyrenyl- adamantanebisurea derivatives // Journal of photochemistry and photobiology. A, Chemistry, 229 (2012), 1; 1-10 doi:10.1016/j.jphotochem.2011.12.005 (međunarodna recenzija, članak, znanstveni)


Naslov
Photophysical study of the aggregation of naphthyl-, anthryl- and pyrenyl- adamantanebisurea derivatives

Autori
Blažek, Vesna ; Mlinarić-Majerski, Kata ; Qin, Wenwu ; Basarić, Nikola

Izvornik
Journal of photochemistry and photobiology. A, Chemistry (1010-6030) 229 (2012), 1; 1-10

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

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.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekt / tema
098-0982933-2911 - Kavezasti spojevi: ugradbene jedinice u molekularnim sustavima (Kata Majerski, )

Ustanove
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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