Electrogenerated chemiluminescence of the platinum (II) octaethylporphyrin/tri-n-propylamine system

Authors

Toby R. Long, MSU Graduate Student
Mark M. Richter, Missouri State UniversityFollow

Abstract

The electrogenerated chemiluminescence (ECL) of platinum (II) octaethyl-porphyrin (PtOEP) in acetonitrile:methylene chloride (CH₃CN:CH₂Cl₂, 50:50 v/v) and CH₂Cl₂ is reported. ECL was generated upon sweep to positive potentials using tri-n-propylamine (TPrA) as an oxidative–reductive coreactant. ECL efficiencies (ϕecl) of 0.18 in CH₃CN:CH₂Cl₂ (50:50 v/v) and 3.90 in methylene chloride were obtained using Ru(bpy)₃(PF₆)₂ (bpy = 2,2′-bipyridine) as a relative standard (ϕecl = 1). The ECL intensity peaks at a potential corresponding to oxidation of PtOEP and TPrA, and ECL emission spectra are nearly identical to photoluminescence emission spectra, indicating that emission is from the PtOEP triplet state.

Department(s)

Chemistry and Biochemistry

Document Type

Article

DOI

https://doi.org/10.1016/j.ica.2004.12.017

Keywords

electrogenerated chemiluminescence, electrochemiluminescence, platinum octaethyl porphyrin

Publication Date

2005

Recommended Citation

Long, Toby R., and Mark M. Richter. "Electrogenerated chemiluminescence of the platinum (II) octaethylporphyrin/tri-n-propylamine system." Inorganica chimica acta 358, no. 6 (2005): 2141-2145.

Journal Title

Inorganica Chimica Acta