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HSO4¯ sensing based on proton transfer in H-bonding complexes


Alešković, Marija; Basarić, Nikola; Došlić, Nađa; Tomišić, Vladislav; Mlinarić-Majerski, Kata
HSO4¯ sensing based on proton transfer in H-bonding complexes // Supramolecular chemistry, 26 (2014), 10/12; 850-855 doi:10.1080/10610278.2014.883077 (međunarodna recenzija, članak, znanstveni)


Naslov
HSO4¯ sensing based on proton transfer in H-bonding complexes

Autori
Alešković, Marija ; Basarić, Nikola ; Došlić, Nađa ; Tomišić, Vladislav ; Mlinarić-Majerski, Kata

Izvornik
Supramolecular chemistry (1061-0278) 26 (2014), 10/12; 850-855

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

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.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekt / tema
098-0352851-2921 - Kontrola atomske i molekulske dinamike oblikovanim elektromagnetskim poljima (Nađa Došlić, )
098-0982933-2911 - Kavezasti spojevi: ugradbene jedinice u molekularnim sustavima (Kata Majerski, )
119-1191342-2960 - Elektroliti i koordinacijske reakcije u otopini (Vladislav Tomišić, )

Ustanove
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, 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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