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Pregled bibliografske jedinice broj: 675773

Časopis

Autori: Alešković, Marija; Basarić, Nikola; Došlić, Nađa; Tomišić, Vladislav; Mlinarić-Majerski, Kata
Naslov: HSO4¯ sensing based on proton transfer in H-bonding complexes
Izvornik: Supramolecular chemistry (1061-0278) 26 (2014), 10/12; 850-855
Vrsta rada: članak
Ključne riječi: adamantane dipyrromethane receptors; anion sensing; HSO4¯sensors; H-bonded complexes; proton transfer
Sažetak:
Aminophenyl-substituted adamantane-dipyrromethane receptors 1 and 2 and aminophenylpyrrole 3 showed a very pronounced and unique UV spectral response with HSO4¯ in aprotic as well as in aqueous media. The fitting of the binding isotherms with HSO4¯ indicated formation of the complexes with the 1:2 (host:anion) stoichiometry. ESI-MS study with mixtures of receptor 3 and TBAHSO4 of different ratio indicated an association of the HSO4¯ and receptor 3, as well as association of the HSO4¯ species into dimers. The unique UV spectral response with HSO4¯ is proposed to be due to proton transfer from HSO4¯ to the amino group of the receptor, which in an aprotic solvent probably takes place in the corresponding H-bonded complexes. The assignations of the spectral changes were corroborated by computation. Moreover, theoretical study indicated that "intra-supramolecular" proton transfer took place whereas presence of the second HSO4¯ was required to enhance the acidity of the first H-bonded anion.
Projekt / tema: 098-0352851-2921, 119-1191342-2960, 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/10.1080/10610278.2014.883077
http://www.tandfonline.com/doi/abs/10.1080/10610278.2014.883077#.VYE6UlI6Dts
Broj citata:
Altmetric:
DOI: 10.1080/10610278.2014.883077
URL cjelovitog teksta:
Google Scholar: HSO4¯ sensing based on proton transfer in H-bonding complexes
Upisao u CROSBI: Enidija Lukša (Enidija.Luksa@irb.hr), 8. Sij. 2014. u 13:22 sati



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