Protonated Bisphosphines: A New Class of Powerful Hydride Donors Capable of CO2 Reduction

Danijela Barić; Mario Damjanović; Zoran Glasovac; Ines Despotovic; Borislav Kovačević

doi:10.1039/d5cc06952a

January 1, 2026Chemical CommunicationsOpen Access

Protonated Bisphosphines: A New Class of Powerful Hydride Donors Capable of CO2 Reduction

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Key Points

This research aims to investigate the hydride donation abilities of protonated bisphosphines for CO2 reduction.
Conducted DFT calculations to analyze hydride donation capabilities.
Evaluated electron-donating strengths of substituents on phosphines.
Investigated performance of monoprotonated bisphosphines compared to traditional hydride donors.
Protonated phosphines show moderate hydride donation capacities.
Monoprotonated bisphosphines display significantly enhanced hydricity.
Some bisphosphines exceed performance of established Super-Hydride in hydride donation.

Implication

DFT calculations reveal protonated bisphosphines enhance hydricity, suggesting new hydride donor capabilities.

Abstract

Using DFT calculations, we show that protonated phosphines bearing strong electron‑donating substituents are moderate hydride donors. Unexpectedly, proton-sponge-like monoprotonated bisphosphines exhibit greatly enhanced hydricity, with some surpassing that of Super‑Hydride....

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Cite This Study

Barić et al. (2026) studied this question.

synapsesocial.com/papers/698d6dae5be6419ac0d52c18 https://doi.org/10.1039/d5cc06952a

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Protonated Bisphosphines: A New Class of Powerful Hydride Donors Capable of CO2 Reduction

Key Points

Implication

Abstract

Discussion

Cite This Study

Protonated Bisphosphines: A New Class of Powerful Hydride Donors Capable of CO2 Reduction

Key Points

Implication

Abstract

Discussion

Cite This Study

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