Tuning the Interlocking in Partially Saturated Copper(I) Rotaxane Complexes for O2-to-H2O Electrocatalytic Reduction

Yan Zhang; Hei Tung Yau; Qi‐Fa Chen; Yulin Deng; Zhuoliang Ying; Seungkyu Lee; Ho Yu Au-Yeung; Edmund C M Tse

doi:10.1039/d6cc02558g

January 1, 2026Chemical Communications

Tuning the Interlocking in Partially Saturated Copper(I) Rotaxane Complexes for O2-to-H2O Electrocatalytic Reduction

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Key Points

The research aims to improve electrocatalytic activity for O2 reduction using copper(I) rotaxane complexes.
Developed tridentate rotaxane ligands for stabilizing a Cu(I) centre.
Examined the effects of interlocking tightness on electrocatalytic performance.
Measured O2 reduction efficiency and selectivity.
Increased interlocking tightness led to improved electrocatalytic activity.
The optimized rotaxane structure showed higher selectivity for O2 reduction.
Quantitative metrics on activity were not specified but alignment with design goals was achieved.

Implication

Demonstrates controlled electrocatalytic activity in copper(I) complexes, suggesting new pathways for oxygen reduction.

Abstract

We developed tridentate rotaxane ligands to stabilise a dynamic Cu(I) centre with an empty coordination site for O2 reduction. Electrocatalytic activity and selectivity can be controlled by the interlocking tightness...

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Cite This Study

Zhang et al. (2026) studied this question.

synapsesocial.com/papers/6a05685ca550a87e60a20db9 https://doi.org/10.1039/d6cc02558g

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Tuning the Interlocking in Partially Saturated Copper(I) Rotaxane Complexes for O2-to-H2O Electrocatalytic Reduction

Key Points

Implication

Abstract

Discussion

Cite This Study

Tuning the Interlocking in Partially Saturated Copper(I) Rotaxane Complexes for O2-to-H2O Electrocatalytic Reduction

Key Points

Implication

Abstract

Discussion

Cite This Study

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