A novel profluorescent paramagnetic diaza-crown ether: synthesis, characterization and alkaline metal-ion complexation

Anca G Coman; Cristina Stavarache; Anca Paun; Codruţa C Popescu; Niculina D Hădade; Petre Ionita; Mihaela Matache

doi:10.1039/c8ra09828j

A novel profluorescent paramagnetic diaza-crown ether: synthesis, characterization and alkaline metal-ion complexation

RSC Adv. 2019 Feb 19;9(11):6078-6083. doi: 10.1039/c8ra09828j. eCollection 2019 Feb 18.

Authors

Anca G Coman¹, Cristina Stavarache², Anca Paun¹, Codruţa C Popescu¹, Niculina D Hădade³, Petre Ionita^{1

4}, Mihaela Matache¹

Affiliations

¹ University of Bucharest, Faculty of Chemistry, Department of Organic Chemistry, Biochemistry and Catalysis, Research Centre of Applied Organic Chemistry 90-92 Panduri Street RO-050663 Bucharest Romania mihaela.matache@g.unibuc.ro pionita@icf.ro.
² Institute of Organic Chemistry "C.D. Nenitescu" of the Romanian Academy 202B Spl. Independentei 060023 Bucharest Romania.
³ Faculty of Chemistry and Chemical Engineering, Supramolecular Organic and Organometallic Chemistry Centre, "Babes-Bolyai" University 11 Arany Janos Str. RO-400028-Cluj-Napoca Romania.
⁴ Institute of Physical Chemistry "Ilie Murgulescu" 202 Splaiul Independentei Bucharest Romania.

Abstract

Starting from Kryptofix 22 two different branches were covalently attached through the nitrogen atoms, one containing a fluorescent moiety and the other the stable free radical TEMPO. The novel derivative exhibits fluorescence and paramagnetic properties, while the diaza-crown part ensures the affinity for alkaline metal-ions.