Dinuclear Cobalt Complexes with a Decadentate Ligand Scaffold: Hydrogen Evolution and Oxygen Reduction Catalysis

Carlo Di Giovanni; Carolina Gimbert-Suriñach; Michael Nippe; Jordi Benet-Buchholz; Jeffrey R. Long; Xavier Sala; Antoni Llobet

doi:10.1002/chem.201503567

Dinuclear Cobalt Complexes with a Decadentate Ligand Scaffold: Hydrogen Evolution and Oxygen Reduction Catalysis

Carlo Di Giovanni, Carolina Gimbert-Suriñach, Michael Nippe, Jordi Benet-Buchholz, Jeffrey R. Long, Xavier Sala, Antoni Llobet

Department of Chemistry

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

38 Citations (Scopus)

Abstract

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. A new decadentate dinucleating ligand containing a pyridazine bridging group and pyridylic arms has been synthesized and characterized by analytical and spectroscopic techniques. Four new dinuclear cobalt complexes featuring this ligand have been prepared and thoroughly characterized both in the solid state (X-ray diffraction) and in solution (1D and 2D NMR spectroscopy, ESI-MS, and electrochemical techniques). The flexible but stable coordination environment provided by the ligand scaffold when coordinating Co in different oxidation states is shown to play a crucial role in the performance of the set of complexes when tested as catalysts for the photochemical hydrogen evolution reaction (HER) and chemical oxygen reduction reaction (ORR).

Original language	English
Pages (from-to)	361-369
Journal	Chemistry - A European Journal
Volume	22
Issue number	1
DOIs	https://doi.org/10.1002/chem.201503567
Publication status	Published - 4 Jan 2016

Keywords

decadentate ligands
dicobalt complexes
oxygen reduction
peroxo bridges
proton reduction

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10.1002/chem.201503567

CCDC 1440201: Experimental Crystal Structure Determination
Di Giovanni, C. (Creator), Gimbert-Suriñach, C. (Creator), Nippe, M. (Creator), Benet-Buchholz, J. (Creator), Long, J. R. (Creator), Sala, X. (Creator) & Llobet, A. (Creator), Cambridge Crystallographic Data Centre, 3 Dec 2015
DOI: 10.5517/cc1kbn3n, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc1kbn3n&sid=DataCite
Dataset
CCDC 1440200: Experimental Crystal Structure Determination
Di Giovanni, C. (Creator), Gimbert-Suriñach, C. (Creator), Nippe, M. (Creator), Benet-Buchholz, J. (Creator), Long, J. R. (Creator), Sala, X. (Creator) & Llobet, A. (Creator), Cambridge Crystallographic Data Centre, 3 Dec 2015
DOI: 10.5517/cc1kbn2m, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc1kbn2m&sid=DataCite
Dataset
CCDC 1440202: Experimental Crystal Structure Determination
Di Giovanni, C. (Creator), Gimbert-Suriñach, C. (Creator), Nippe, M. (Creator), Benet-Buchholz, J. (Creator), Long, J. R. (Creator), Sala, X. (Creator) & Llobet, A. (Creator), Cambridge Crystallographic Data Centre, 13 Mar 2016
DOI: 10.5517/cc1kbn4p, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc1kbn4p&sid=DataCite
Dataset

Cite this

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title = "Dinuclear Cobalt Complexes with a Decadentate Ligand Scaffold: Hydrogen Evolution and Oxygen Reduction Catalysis",

abstract = "{\textcopyright} 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. A new decadentate dinucleating ligand containing a pyridazine bridging group and pyridylic arms has been synthesized and characterized by analytical and spectroscopic techniques. Four new dinuclear cobalt complexes featuring this ligand have been prepared and thoroughly characterized both in the solid state (X-ray diffraction) and in solution (1D and 2D NMR spectroscopy, ESI-MS, and electrochemical techniques). The flexible but stable coordination environment provided by the ligand scaffold when coordinating Co in different oxidation states is shown to play a crucial role in the performance of the set of complexes when tested as catalysts for the photochemical hydrogen evolution reaction (HER) and chemical oxygen reduction reaction (ORR).",

keywords = "decadentate ligands, dicobalt complexes, oxygen reduction, peroxo bridges, proton reduction",

author = "{Di Giovanni}, Carlo and Carolina Gimbert-Suri{\~n}ach and Michael Nippe and Jordi Benet-Buchholz and Long, {Jeffrey R.} and Xavier Sala and Antoni Llobet",

year = "2016",

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doi = "10.1002/chem.201503567",

language = "English",

volume = "22",

pages = "361--369",

number = "1",

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TY - JOUR

T1 - Dinuclear Cobalt Complexes with a Decadentate Ligand Scaffold: Hydrogen Evolution and Oxygen Reduction Catalysis

AU - Di Giovanni, Carlo

AU - Gimbert-Suriñach, Carolina

AU - Nippe, Michael

AU - Benet-Buchholz, Jordi

AU - Long, Jeffrey R.

AU - Sala, Xavier

AU - Llobet, Antoni

PY - 2016/1/4

Y1 - 2016/1/4

N2 - © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. A new decadentate dinucleating ligand containing a pyridazine bridging group and pyridylic arms has been synthesized and characterized by analytical and spectroscopic techniques. Four new dinuclear cobalt complexes featuring this ligand have been prepared and thoroughly characterized both in the solid state (X-ray diffraction) and in solution (1D and 2D NMR spectroscopy, ESI-MS, and electrochemical techniques). The flexible but stable coordination environment provided by the ligand scaffold when coordinating Co in different oxidation states is shown to play a crucial role in the performance of the set of complexes when tested as catalysts for the photochemical hydrogen evolution reaction (HER) and chemical oxygen reduction reaction (ORR).

AB - © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. A new decadentate dinucleating ligand containing a pyridazine bridging group and pyridylic arms has been synthesized and characterized by analytical and spectroscopic techniques. Four new dinuclear cobalt complexes featuring this ligand have been prepared and thoroughly characterized both in the solid state (X-ray diffraction) and in solution (1D and 2D NMR spectroscopy, ESI-MS, and electrochemical techniques). The flexible but stable coordination environment provided by the ligand scaffold when coordinating Co in different oxidation states is shown to play a crucial role in the performance of the set of complexes when tested as catalysts for the photochemical hydrogen evolution reaction (HER) and chemical oxygen reduction reaction (ORR).

KW - decadentate ligands

KW - dicobalt complexes

KW - oxygen reduction

KW - peroxo bridges

KW - proton reduction

U2 - 10.1002/chem.201503567

DO - 10.1002/chem.201503567

M3 - Article

SN - 0947-6539

VL - 22

SP - 361

EP - 369

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

IS - 1

ER -

Dinuclear Cobalt Complexes with a Decadentate Ligand Scaffold: Hydrogen Evolution and Oxygen Reduction Catalysis

Abstract

Keywords

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Datasets

CCDC 1440201: Experimental Crystal Structure Determination

CCDC 1440200: Experimental Crystal Structure Determination

CCDC 1440202: Experimental Crystal Structure Determination

Cite this