Electrogenerated chemiluminescence of Pb(II)-bromide complexes

Authors

Pavneet Singh, MSU Graduate Student
Mark M. Richter, Missouri State UniversityFollow

Abstract

The electrochemistry and electrogenerated chemiluminescence (ECL) of Pb₄Br₁₁ ^3- in acetonitrile solution is reported. Pb₄Br₁₁ ^3- is formed in situ by the reaction of lead(II) and bromide ions with ECL generated upon sweep to positive potentials using tri-n-propylamine (TPrA) as an oxidative–reductive coreactant. An ECL efficiency (φecl) of 0.0079 was obtained compared to Ir(ppy)3 (ppy=2-phenylpyridine; φecl=1). The ECL intensity peaks at a potential corresponding to oxidation of TPrA and Pb₄Br₁₁ ^3- indicating that emission is from the lead-bromide cluster.

Pb₄Br₁₁ ^3-, formed in situ by the reaction between lead ion and excess bromide in acetonitrile solution, undergoes electrogenerated chemiluminescence (ECL) using tri-n-propylamine as an oxidative–reductive coreactant. The electrochemistry, spectroscopy and ECL are discussed.

Department(s)

Chemistry and Biochemistry

Document Type

Article

DOI

https://doi.org/10.1016/j.ica.2003.12.008

Keywords

electrogenerated chemiluminescence, lead-bromide clusters

Publication Date

2004

Recommended Citation

Singh, Pavneet, and Mark M. Richter. "Electrogenerated chemiluminescence of Pb (II)-bromide complexes." Inorganica chimica acta 357, no. 5 (2004): 1589-1592.

Journal Title

Inorganica Chimica Acta