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April 8, 2026ACS electrochemistry.Open Access

Rationalized Volcano Plot in Heterogeneous Electrochemiluminescence

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Authors

AFAlessandro FracassaMOMichele OrzaCMChiara Mariani

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Overview

Demonstrates a non-monotonic relationship between ECL intensity and radical stability in electrochemiluminescence, suggesting a theoretical framework for optimizing ECL assays.

Key Points

  • The aim is to establish a consistent relationship between ECL intensity and the stability of electrogenerated radical cations.
  • Utilized ECL microscopy to measure intensity from individual labeled beads.
  • Correlated ECL intensity with intrinsic deprotonation kinetics.
  • Applied density functional theory to derive kinetic constants.
  • Analyzed a novel long-lived radical intermediate from an aniline derivative.
  • Identified a volcano-type dependence between radical deprotonation rate and ECL intensity.
  • Defined an optimal stability window for effective ECL emission.
  • Disentangled intrinsic radical decomposition rates from experimental artifacts.

Cite This Study

Fracassa et al. (2026) studied this question.

synapsesocial.com/papers/69d5f0d774eaea4b11a7a557https://doi.org/10.1021/acselectrochem.6c00072
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