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Pregled bibliografske jedinice broj: 871936

PH and metal sensing properties of benzimidazole based Schiff bases


Horak, Ema; Hranjec, Marijana; Perin, Nataša; Vianello, Robert; Krištafor, Svjetlana; Steinberg, Ivana
pH and metal sensing properties of benzimidazole based Schiff bases // 25. hrvatski skup kemičara i kemijskih inženjera (25HSKIKI) : Knjiga sažetaka / Šantić, Ana ; Đaković, Marijana (ur.).
Zagreb, 2017. str. 262-262 (poster, domaća recenzija, sažetak, znanstveni)


CROSBI ID: 871936 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
PH and metal sensing properties of benzimidazole based Schiff bases

Autori
Horak, Ema ; Hranjec, Marijana ; Perin, Nataša ; Vianello, Robert ; Krištafor, Svjetlana ; Steinberg, Ivana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
25. hrvatski skup kemičara i kemijskih inženjera (25HSKIKI) : Knjiga sažetaka / Šantić, Ana ; Đaković, Marijana - Zagreb, 2017, 262-262

Skup
Hrvatski skup kemičara i kemijskih inženjera (25 ; 2017)

Mjesto i datum
Poreč, Hrvatska, 19-22.04.2017

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
benzimidazoles, Schiff bases, chemosensors, pH sensors

Sažetak
Intramolecular charge-transfer (ICT) organic systems based on electron donor-π-electron acceptor structures (D-π-A) are widely used as fluorescent chemosensors. Benzimidazole moiety is an attractive building block of such molecular structures due to multifunctionality of its heteroaromatic conjugated planar structure. Schiff bases are one of the most investigated classes of organic compounds as a result of their excellent chelating ability. They are frequently described as optical chemical sensors [1] or chemodosimeters [2] due to their desirable optical properties, where benzimidazole is often incorporated as a functional or electron accepting unit in a respective D-π-A system [3]. Benzimidazole based Schiff bases exhibit structural similarity with biomolecules which offers an interesting platform for development of novel optically responsive sensor molecules. The interactions of benzimdazole based Schiff bases 1-3 with different metal ions and effects of solvents and pH on their response have been studied by absorption and fluorescence spectroscopies. Basic photophysical properties are described in different solvents. Schiff bases exhibited naked-eye visible colour change upon protonation and pKa values around 4. The pKa is significantly increased upon immobilisation in bulk membrane (apparent pKa = 6.7). All compounds indicated good sensing properties for metal ions. Compound 2 is presented as colourimetric sensor for Al3+ and fluorimetric sensor for Cu2+ (Fig 1.) ion.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekti:
HRZZ-IP-2014-09-3386 - Dizajn i sinteza novih dušikovih heterocikličkih fluorofora i fluorescentnih nanomaterijala kao kemijskih senzora za pH i metalne ione (iNFiNiTE–SENS) (Vianello, Robert, HRZZ - 2014-09) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb,
Fakultet kemijskog inženjerstva i tehnologije, Zagreb


Citiraj ovu publikaciju

Horak, Ema; Hranjec, Marijana; Perin, Nataša; Vianello, Robert; Krištafor, Svjetlana; Steinberg, Ivana
pH and metal sensing properties of benzimidazole based Schiff bases // 25. hrvatski skup kemičara i kemijskih inženjera (25HSKIKI) : Knjiga sažetaka / Šantić, Ana ; Đaković, Marijana (ur.).
Zagreb, 2017. str. 262-262 (poster, domaća recenzija, sažetak, znanstveni)
Horak, E., Hranjec, M., Perin, N., Vianello, R., Krištafor, S. & Steinberg, I. (2017) pH and metal sensing properties of benzimidazole based Schiff bases. U: Šantić, A. & Đaković, M. (ur.)25. hrvatski skup kemičara i kemijskih inženjera (25HSKIKI) : Knjiga sažetaka.
@article{article, year = {2017}, pages = {262-262}, keywords = {benzimidazoles, Schiff bases, chemosensors, pH sensors}, title = {pH and metal sensing properties of benzimidazole based Schiff bases}, keyword = {benzimidazoles, Schiff bases, chemosensors, pH sensors}, publisherplace = {Pore\v{c}, Hrvatska} }
@article{article, year = {2017}, pages = {262-262}, keywords = {benzimidazoles, Schiff bases, chemosensors, pH sensors}, title = {pH and metal sensing properties of benzimidazole based Schiff bases}, keyword = {benzimidazoles, Schiff bases, chemosensors, pH sensors}, publisherplace = {Pore\v{c}, Hrvatska} }




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