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Titolo:
Complex formation between azacrown derivatives of dibenzylidenecyclopentanone and alkali-earth metal ions
Autore:
Doroshenko, AO; Grigorovich, AV; Posokhov, EA; Pivovarenko, VG; Demchenko, AP; Sheiko, AD;
Indirizzi:
Kharkov VN Karazin Natl Univ, UA-61077 Kharkov, Ukraine Kharkov VN KarazinNatl Univ Kharkov Ukraine UA-61077 7 Kharkov, Ukraine Taras Shevchenko Natl Univ, UA-02033 Kiev, Ukraine Taras Shevchenko Natl Univ Kiev Ukraine UA-02033 UA-02033 Kiev, Ukraine AV Palladin Biochem Inst, UA-02030 Kiev, Ukraine AV Palladin Biochem InstKiev Ukraine UA-02030 t, UA-02030 Kiev, Ukraine TUBITAK Marmara Res Ctr, TR-41470 Gebze, Turkey TUBITAK Marmara Res Ctr Gebze Turkey TR-41470 tr, TR-41470 Gebze, Turkey
Titolo Testata:
RUSSIAN CHEMICAL BULLETIN
fascicolo: 3, volume: 50, anno: 2001,
pagine: 404 - 412
SICI:
1066-5285(200103)50:3<404:CFBADO>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
DYES;
Keywords:
bis(azacrown) derivatives of dibenzylidenecyclopentanone; ketocyanine dyes; electronic spectra; sequence of complex formation; fluorescent probes; carbonyl group; crown ethers; Kiprianov effect;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Doroshenko, AO Kharkov VN Karazin Natl Univ, 4 Pl Svobody, UA-61077 Kharkov, Ukraine Kharkov VN Karazin Natl Univ 4 Pl Svobody Kharkov Ukraine UA-61077
Citazione:
A.O. Doroshenko et al., "Complex formation between azacrown derivatives of dibenzylidenecyclopentanone and alkali-earth metal ions", RUSS CHEM B, 50(3), 2001, pp. 404-412

Abstract

The complex formation of 2,5-bis[4-(1,7,10,13-tetraoxa-4-azacyctopentadec-4-yl)benzyl-idene]cyclopentanone and several model compounds, prospective metal-sensitive fluorescent probes, with Mg2+, Ca2+, and Ba2+ ions in acetonitrile was studied. The azacrown derivatives of dibenzylidenecyclopentanonehave two complex formation centers, azacrown cycle and carbonyl group. Thesequence of binding to these sites is different for different ions, The efficient ejection of the Ca2+ and Ba2+ ions from their complexes with azacoronands was observed in the excited state, whereas in the case of the Mg2+ ion, this process occurred only partially.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/09/20 alle ore 05:40:43