Thesis Title

Electrochemiluminescence of a Lead Bromide Cluster

Author

Pavneet Singh

Date of Graduation

Summer 2004

Degree

Master of Science in Chemistry

Department

Chemistry

Committee Chair

Mark Richter

Keywords

electrogenerated chemiluminescence, lead-bromide clusters, coreactant, ECL intensity, luminophores

Subject Categories

Chemistry

Abstract

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.

Copyright

© Pavneet Singh

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