Evidence for tetranuclear bis-μ-oxo cubane species in molecular iridium-based water oxidation catalysts from XAS analysis

Stuart A Bartlett; Emma V Sackville; Emma K Gibson; Veronica Celorrio; Peter P Wells; Maarten Nachtegaal; Stafford W Sheehan; Ulrich Hintermair

doi:10.1039/c9cc02088h

Evidence for tetranuclear bis-μ-oxo cubane species in molecular iridium-based water oxidation catalysts from XAS analysis

Stuart A Bartlett
, Emma V Sackville
, Emma K Gibson
, Veronica Celorrio
, Peter P Wells
, Maarten Nachtegaal
, Stafford W Sheehan
, Ulrich Hintermair

Paul Scherrer Institute, 5232 Villigen, Switzerland.
Catalytic Innovations, Fall River, MA, 02723, USA.
Diamond Light Source Ltd
University of Glasgow
University of Southampton

Research output: Contribution to journal › Article › peer-review

11 Citations (SciVal)

Abstract

The structure of a highly active pyridine-alkoxide iridium water oxidation catalyst (WOC) is examined by X-ray absorption spectroscopy (XAS). A detailed comparison with IrO2 points to a rigid molecular unit of low nuclearity, with the best analysis suggesting a novel tetrameric iridium-oxo cubane as the resting state.

Original language	English
Pages (from-to)	7832-7835
Number of pages	4
Journal	Chemical communications (Cambridge, England)
Volume	55
Issue number	54
Early online date	19 Jun 2019
DOIs	https://doi.org/10.1039/c9cc02088h
Publication status	Published - 11 Jul 2019

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10.1039/c9cc02088hLicence: CC BY

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abstract = "The structure of a highly active pyridine-alkoxide iridium water oxidation catalyst (WOC) is examined by X-ray absorption spectroscopy (XAS). A detailed comparison with IrO2 points to a rigid molecular unit of low nuclearity, with the best analysis suggesting a novel tetrameric iridium-oxo cubane as the resting state.",

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T1 - Evidence for tetranuclear bis-μ-oxo cubane species in molecular iridium-based water oxidation catalysts from XAS analysis

AU - Bartlett, Stuart A

AU - Sackville, Emma V

AU - Gibson, Emma K

AU - Celorrio, Veronica

AU - Wells, Peter P

AU - Nachtegaal, Maarten

AU - Sheehan, Stafford W

AU - Hintermair, Ulrich

PY - 2019/7/11

Y1 - 2019/7/11

N2 - The structure of a highly active pyridine-alkoxide iridium water oxidation catalyst (WOC) is examined by X-ray absorption spectroscopy (XAS). A detailed comparison with IrO2 points to a rigid molecular unit of low nuclearity, with the best analysis suggesting a novel tetrameric iridium-oxo cubane as the resting state.

AB - The structure of a highly active pyridine-alkoxide iridium water oxidation catalyst (WOC) is examined by X-ray absorption spectroscopy (XAS). A detailed comparison with IrO2 points to a rigid molecular unit of low nuclearity, with the best analysis suggesting a novel tetrameric iridium-oxo cubane as the resting state.

UR - https://www.scopus.com/pages/publications/85068314374

U2 - 10.1039/c9cc02088h

DO - 10.1039/c9cc02088h

M3 - Article

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SN - 1359-7345

VL - 55

SP - 7832

EP - 7835

JO - Chemical communications (Cambridge, England)

JF - Chemical communications (Cambridge, England)

IS - 54

ER -

Evidence for tetranuclear bis-μ-oxo cubane species in molecular iridium-based water oxidation catalysts from XAS analysis

Abstract

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