Copper(ii) defect-cubane water oxidation electrocatalysts: from molecular tetramers to oxidic nanostructures

Devi Prasad Adiyeri Saseendran; Jörg W. A. Fischer; Lea Müller; Daniel F. Abbott; Victor Mougel; Gunnar Jeschke; Carlos A. Triana; Greta R. Patzke

doi:10.1039/D3CC01005H

Copper(ii) defect-cubane water oxidation electrocatalysts: from molecular tetramers to oxidic nanostructures

Devi Prasad Adiyeri Saseendran
, Jörg W. A. Fischer
, Lea Müller
, Daniel F. Abbott
, Victor Mougel
, Gunnar Jeschke
, Carlos A. Triana
, Greta R. Patzke^*

^*Corresponding author for this work

extern

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

Abstract

We report on the synthesis and spectroscopic evidence for a sequence of structural transformations of a new defect-cubane type copper complex, [Cu4(pyalk)4(OAc)4](ClO4)(HNEt3), which acts as a pre-catalyst for water oxidation. In situ and post-catalytic studies showed that the tetrameric complex undergoes a structural transformation into dimeric and monomeric species, induced by water molecules and carbonate anions, respectively. Further, the observed electrocatalytic water oxidation activity has been confirmed to arise from in situ-generated Cu(II) oxidic nanostructures at the electrode interface.

Original language	English
Pages (from-to)	5866-5869
Journal	Chemical Communications
Volume	59
Issue number	39
DOIs	https://doi.org/10.1039/D3CC01005H
Publication status	Published - 2023
Externally published	Yes

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@article{e0690425f0794ea0aa25ed846565365a,

title = "Copper(ii) defect-cubane water oxidation electrocatalysts: from molecular tetramers to oxidic nanostructures",

abstract = "We report on the synthesis and spectroscopic evidence for a sequence of structural transformations of a new defect-cubane type copper complex, [Cu4(pyalk)4(OAc)4](ClO4)(HNEt3), which acts as a pre-catalyst for water oxidation. In situ and post-catalytic studies showed that the tetrameric complex undergoes a structural transformation into dimeric and monomeric species, induced by water molecules and carbonate anions, respectively. Further, the observed electrocatalytic water oxidation activity has been confirmed to arise from in situ-generated Cu(II) oxidic nanostructures at the electrode interface.",

author = "Saseendran, \{Devi Prasad Adiyeri\} and Fischer, \{J{\"o}rg W. A.\} and Lea M{\"u}ller and Abbott, \{Daniel F.\} and Victor Mougel and Gunnar Jeschke and Triana, \{Carlos A.\} and Patzke, \{Greta R.\}",

year = "2023",

doi = "10.1039/D3CC01005H",

language = "English",

volume = "59",

pages = "5866--5869",

journal = "Chemical Communications",

issn = "1359-7345",

publisher = "Royal Society of Chemistry",

number = "39",

}

TY - JOUR

T1 - Copper(ii) defect-cubane water oxidation electrocatalysts: from molecular tetramers to oxidic nanostructures

AU - Saseendran, Devi Prasad Adiyeri

AU - Fischer, Jörg W. A.

AU - Müller, Lea

AU - Abbott, Daniel F.

AU - Mougel, Victor

AU - Jeschke, Gunnar

AU - Triana, Carlos A.

AU - Patzke, Greta R.

PY - 2023

Y1 - 2023

N2 - We report on the synthesis and spectroscopic evidence for a sequence of structural transformations of a new defect-cubane type copper complex, [Cu4(pyalk)4(OAc)4](ClO4)(HNEt3), which acts as a pre-catalyst for water oxidation. In situ and post-catalytic studies showed that the tetrameric complex undergoes a structural transformation into dimeric and monomeric species, induced by water molecules and carbonate anions, respectively. Further, the observed electrocatalytic water oxidation activity has been confirmed to arise from in situ-generated Cu(II) oxidic nanostructures at the electrode interface.

AB - We report on the synthesis and spectroscopic evidence for a sequence of structural transformations of a new defect-cubane type copper complex, [Cu4(pyalk)4(OAc)4](ClO4)(HNEt3), which acts as a pre-catalyst for water oxidation. In situ and post-catalytic studies showed that the tetrameric complex undergoes a structural transformation into dimeric and monomeric species, induced by water molecules and carbonate anions, respectively. Further, the observed electrocatalytic water oxidation activity has been confirmed to arise from in situ-generated Cu(II) oxidic nanostructures at the electrode interface.

U2 - 10.1039/D3CC01005H

DO - 10.1039/D3CC01005H

M3 - Article

SN - 1359-7345

VL - 59

SP - 5866

EP - 5869

JO - Chemical Communications

JF - Chemical Communications

IS - 39

ER -

Copper(ii) defect-cubane water oxidation electrocatalysts: from molecular tetramers to oxidic nanostructures

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