CO2 reduction or HCO2− oxidation? Solvent-dependent thermochemistry of a nickel hydride complex

Bianca M. Ceballos; Charlene Tsay; Jenny Y. Yang

doi:10.1039/C7CC02511D

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CO₂ reduction or HCO₂⁻ oxidation? Solvent-dependent thermochemistry of a nickel hydride complex†

Bianca M. Ceballos,

^a Charlene Tsay^a and Jenny Y. Yang

*^a

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* Corresponding authors

^a Department of Chemistry, University of California, Irvine, USA
E-mail: j.yang@uci.edu

Abstract

The hydricity (ΔG_H⁻) of a newly synthesized nickel hydride was experimentally determined in acetonitrile (50.6 kcal mol⁻¹), dimethyl sulfoxide (47.1 kcal mol⁻¹), and water (22.8 kcal mol⁻¹). The hydricity values indicate hydride transfer from [HNi(TMEPE)₂][BF₄] (TMEPE = 1,2-bis[di(methoxyethyl)phosphino]ethane) to CO₂ is exergonic in water and endergonic in the organic solvents.

This article is part of the themed collection: 2017 Emerging Investigators

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Article information

DOI: https://doi.org/10.1039/C7CC02511D
Article type: Communication
Submitted: 01 Apr 2017
Accepted: 03 Jun 2017
First published: 16 Jun 2017

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Chem. Commun., 2017,53, 7405-7408

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CO₂ reduction or HCO₂⁻ oxidation? Solvent-dependent thermochemistry of a nickel hydride complex

B. M. Ceballos, C. Tsay and J. Y. Yang, Chem. Commun., 2017, 53, 7405 DOI: 10.1039/C7CC02511D

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Chemical Communications