Pretražite po imenu i prezimenu autora, mentora, urednika, prevoditelja

Napredna pretraga

Pregled bibliografske jedinice broj: 479721

Synthesis and cation binding properties of fluorescent calix[4]arene derivatives bearing tryptophan units at the lower rim


Galić, Nives; Burić, Nataša; Tomaš, Renato; Frkanec, Leo; Tomišić, Vladislav
Synthesis and cation binding properties of fluorescent calix[4]arene derivatives bearing tryptophan units at the lower rim // Supramolecular chemistry, 23 (2011), 5; 389-397 doi:10.1080/10610278.2010.521832 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 479721 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Synthesis and cation binding properties of fluorescent calix[4]arene derivatives bearing tryptophan units at the lower rim

Autori
Galić, Nives ; Burić, Nataša ; Tomaš, Renato ; Frkanec, Leo ; Tomišić, Vladislav

Izvornik
Supramolecular chemistry (1061-0278) 23 (2011), 5; 389-397

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

Ključne riječi
calixarenes ; alkali metal cations ; europium(III) ; stability constants ; fluorescence

Sažetak
The fluorescent peptidocalixarenes, 5, 11, 17, 23-tetra-tert-butyl-25, 26, 27, 28-tetrakis(O-methyl-L-tryptophanylcarbonylmethoxy)calix[4]arene (1) and 5, 11, 17, 23-tetra-tert-butyl-25, 27-di(O-methyl)-26, 28-bis(O-methyl-L-tryptophanylcarbonylmethoxy)calix[4]arene (2), were prepared by introducing tryptophan subunits at a lower calixarene rim. Coordination abilities of 1 and 2 towards europium(III) and alkali metal cations were studied by spectrophotometric, spectrofluorimetric, conductometric and potentiometric titrations in acetonitrile at 25 oC. Rather strong complexation was observed for smaller alkali metal cations Li+ and Na+ (log KLi1 > 6, log KLi2 > 6, log KNa1 = 8.25, logKNa2 = 6.94), and moderate for K+ (log KK1 = 5.09, log KK2 = 4.09). Larger Rb+ and Cs+ cations did not fit in the ion-binding site of 1 so no complexation was detected, whereas the more flexible ligand 2 accommodated Rb+ cation (log KRb2 = 3.44). The fluorescence of 1 (ex = 280 nm, em = 340 nm) was remarkably quenched by Eu(III). Stability constant of 1:1 (Eu3+:1) complex determined spectrofluorimetrically amounted to log KEu1 = 6.16.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekti:
MZOS-098-0982904-2912 - Samo-udruživanje u gelovima i sinteza funkcionalnih hibridnih materijala (Frkanec, Leo, MZOS ) ( POIROT)
MZOS-119-1191342-2960 - Elektroliti i koordinacijske reakcije u otopini (Tomišić, Vladislav, MZOS ) ( POIROT)

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

Profili:

Avatar Url Nives Galić (autor)

Avatar Url Vladislav Tomišić (autor)

Avatar Url Nataša Burić (autor)

Avatar Url Leo Frkanec (autor)

Avatar Url Renato Tomaš (autor)

Citiraj ovu publikaciju

Galić, Nives; Burić, Nataša; Tomaš, Renato; Frkanec, Leo; Tomišić, Vladislav
Synthesis and cation binding properties of fluorescent calix[4]arene derivatives bearing tryptophan units at the lower rim // Supramolecular chemistry, 23 (2011), 5; 389-397 doi:10.1080/10610278.2010.521832 (međunarodna recenzija, članak, znanstveni)
Galić, N., Burić, N., Tomaš, R., Frkanec, L. & Tomišić, V. (2011) Synthesis and cation binding properties of fluorescent calix[4]arene derivatives bearing tryptophan units at the lower rim. Supramolecular chemistry, 23 (5), 389-397 doi:10.1080/10610278.2010.521832.
@article{article, year = {2011}, pages = {389-397}, DOI = {10.1080/10610278.2010.521832}, keywords = {calixarenes, alkali metal cations, europium(III), stability constants, fluorescence}, journal = {Supramolecular chemistry}, doi = {10.1080/10610278.2010.521832}, volume = {23}, number = {5}, issn = {1061-0278}, title = {Synthesis and cation binding properties of fluorescent calix[4]arene derivatives bearing tryptophan units at the lower rim}, keyword = {calixarenes, alkali metal cations, europium(III), stability constants, fluorescence} }
@article{article, year = {2011}, pages = {389-397}, DOI = {10.1080/10610278.2010.521832}, keywords = {calixarenes, alkali metal cations, europium(III), stability constants, fluorescence}, journal = {Supramolecular chemistry}, doi = {10.1080/10610278.2010.521832}, volume = {23}, number = {5}, issn = {1061-0278}, title = {Synthesis and cation binding properties of fluorescent calix[4]arene derivatives bearing tryptophan units at the lower rim}, keyword = {calixarenes, alkali metal cations, europium(III), stability constants, fluorescence} }

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


Citati





    Contrast
    Increase Font
    Decrease Font
    Dyslexic Font