What question did this study set out to answer?

Investigate the mechanism and extent of emission quenching in copper(II) porphyrin complexes induced by interactions with various Lewis bases.

April 1, 1995Inorganic Chemistry

Luminescence Quenching of Copper(II) Porphyrins with Lewis Bases

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Authors

FLFang LiuShandong University of Technology KCKurstan L. CunninghamPurdue University West Lafayette WUWendy Uphues

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Implication

Spectroscopic investigation demonstrates luminescence quenching in copper(II) porphyrin complexes upon exposure to Lewis bases, indicating axial ligand binding in the excited state.

Key Points

Investigate the mechanism and extent of emission quenching in copper(II) porphyrin complexes induced by interactions with various Lewis bases.
Measured luminescence spectra and excited-state decay lifetimes of copper(II) porphyrin complexes in solution.
Titrated Lewis bases to monitor changes in luminescence intensity and binding kinetics.
Analyzed quenching dynamics using standard Stern-Volmer and coordination equilibrium models.
Lewis bases quench the characteristic luminescence of copper(II) porphyrins through direct axial coordination interactions.
Quenching efficiency varies consistently with the donor strength and steric profile of the added Lewis base ligands.

Cite This Study

Liu et al. (1995) studied this question.

synapsesocial.com/papers/69d95babda3af5b1d08364cb https://doi.org/10.1021/ic00112a011

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Implication

Spectroscopic investigation demonstrates luminescence quenching in copper(II) porphyrin complexes upon exposure to Lewis bases, indicating axial ligand binding in the excited state.

Luminescence Quenching of Copper(II) Porphyrins with Lewis Bases

Discussion

Member takes

Implication

Key Points

Cite This Study

Luminescence Quenching of Copper(II) Porphyrins with Lewis Bases

Discussion

Member takes

Implication

Key Points

Cite This Study

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