EPR sensing of metal and organic cations using a novel spin-labelled dibenzo-24-crown-8-ether. Issue 7 (19th September 2018)

• Record Type: Journal Article
• Authors: Gualandi, Lorenzo; Franchi, Paola; Credi, Alberto; Mezzina, Elisabetta; Lucarini, Marco
• Is Part Of: Physical chemistry chemical physics. Volume 21:Issue 7(2019)
• Page Start: 3558
• Page End: 3563
• Publication Date: 2018-09-19
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c8cp04362k
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : Novel dibenzo-24-crown ether substituted nitroxides and their use as spin probes for the detection of cation guests by EPR are reported. Abstract : The synthesis of novel dibenzo-24-crown ether substituted nitroxides and their use as spin probes for the detection of cation guests by EPR are reported. Formation of a host–guest complex between the proposed spin probes and several cations, both organic and inorganic, was evidenced by a significant change in the value of the benzylic and nitrogen EPR hyperfine splittings upon complexation. This favorable feature provided a reliable EPR sensor that is able to selectively distinguish different cationic guests.