Electrochemiluminescence of a Lead Bromide Cluster
Date of Graduation
Master of Science in Chemistry
electrogenerated chemiluminescence, lead-bromide clusters, coreactant, ECL intensity, luminophores
The electrochemistry and electrogenerated chemiluminescence (ECL) of Pb₄Br₁₁³⁻ in acetonitrile solution is reported. Pb₄Br₁₁³⁻ 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 (TPA) as an oxidative-reductive coreactant. An ECL efficiency (øecl) of 0.0079 was obtained compared to Ir(ppy)₃ (ppy=2-phenylpyridine; øecl=1). The ECL intensity peaks at a potential corresponding to oxidation of TPA and Pb₄Br₁₁³⁻ indicating that emission is from the lead-bromide cluster.
© Pavneet Singh
Singh, Pavneet, "Electrochemiluminescence of a Lead Bromide Cluster" (2004). MSU Graduate Theses. 1870.