Abstract

The spectroscopy, electrochemistry and electrogenerated chemiluminescence (ECL) of five osmium(ii) polypyridyl systems containing either phosphine or arsine chelating ligands are reported. ECL is generated in acetonitrile and mixed CH(3)CN-H(2)O (50 : 50 v/v) solutions with tri-n-propylamine (TPrA) as an oxidative-reductive coreactant. ECL efficiencies (phi(ECL) = photons emitted per redox event) between 0.15 and 8.43 are obtained using Ru(bpy)(3)(2+) (bpy = 2,2'-bipyridine) as a relative standard (phi(ECL) = 1). The ECL efficiency is dependent on both the nature of the ligands and the solvent media. The ECL spectra are identical to photoluminescence spectra indicating formation of the same excited states in both ECL and PL.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.