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Zelinskii G, Pavlov AA, Belov AS, Belaya IG, Vologzhanina AV, Nelyubina YV, Efimov NN, Zubavichus YV, Bubnov YN, Novikov VV, Voloshin YZ. A New Series of Cobalt and Iron Clathrochelates with Perfluorinated Ribbed Substituents. ACS OMEGA 2017; 2:6852-6862. [PMID: 31457271 PMCID: PMC6645064 DOI: 10.1021/acsomega.7b01088] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 10/03/2017] [Indexed: 06/10/2023]
Abstract
The study tackles one of the challenges in developing platinum-free molecular electrocatalysts for hydrogen evolution, which is to seek for new possibilities to ensure large turnover numbers by stabilizing electrocatalytic intermediates. These species are often much more reactive than the initial electrocatalysts, and if not properly stabilized by a suitable choice of functionalizing substituents, they have a limited long-time activity. Here, we describe new iron and cobalt(II) cage complexes (clathrochelates) that in contrast to many previously reported complexes of this type do not act as electrocatalysts for hydrogen evolution. We argue that the most probable reason for this behavior is an excessive stabilization of the metal(I) species by perfluoroaryl ribbed groups, resulting in an unprecedented long-term stability of the metal(I) complexes even in acidic solutions.
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Affiliation(s)
- Genrikh
E. Zelinskii
- Nesmeyanov
Institute of Organoelement Compounds of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Alexander A. Pavlov
- Nesmeyanov
Institute of Organoelement Compounds of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Alexander S. Belov
- Nesmeyanov
Institute of Organoelement Compounds of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Irina G. Belaya
- Nesmeyanov
Institute of Organoelement Compounds of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Anna V. Vologzhanina
- Nesmeyanov
Institute of Organoelement Compounds of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Yulia V. Nelyubina
- Nesmeyanov
Institute of Organoelement Compounds of the Russian Academy of Sciences, 119991 Moscow, Russia
- Kurnakov
Institute of General and Inorganic Chemistry of the Russian Academy
of Sciences, 119991 Moscow, Russia
| | - Nikolay N. Efimov
- Kurnakov
Institute of General and Inorganic Chemistry of the Russian Academy
of Sciences, 119991 Moscow, Russia
| | - Yan V. Zubavichus
- Kurchatov
Complex for Synchrotron and Neutron Investigations, National Research Centre “Kurchatov Institute”, Moscow 123182, Russia
| | - Yurii N. Bubnov
- Nesmeyanov
Institute of Organoelement Compounds of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Valentin V. Novikov
- Nesmeyanov
Institute of Organoelement Compounds of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Yan Z. Voloshin
- Nesmeyanov
Institute of Organoelement Compounds of the Russian Academy of Sciences, 119991 Moscow, Russia
- Kurnakov
Institute of General and Inorganic Chemistry of the Russian Academy
of Sciences, 119991 Moscow, Russia
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2
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Dudkin SV, Belov AS, Nelyubina YV, Savchuk AV, Pavlov AA, Novikov VV, Voloshin YZ. Synthesis, X-ray structure and electrochemical properties of hybrid binuclear metallophthalocyaninate-capped tris-pyridineoximates. NEW J CHEM 2017. [DOI: 10.1039/c7nj00131b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
New antimony-capped iron and nickel(ii) tris-pyridineoximates easily underwent transmetallation with zirconium and hafnium(iv) phthalocyaninates giving metallophthalocyaninato-cross-linked complexes.
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Affiliation(s)
- Semyon V. Dudkin
- Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences
- Moscow
- Russia
| | - Alexander S. Belov
- Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences
- Moscow
- Russia
| | - Yulia V. Nelyubina
- Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences
- Moscow
- Russia
| | - Anastasia V. Savchuk
- Vernadskii Institute of General and Inorganic Chemistry of the National Academy of Sciences of Ukraine
- 03680 Kiev
- Ukraine
| | - Alexander A. Pavlov
- Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences
- Moscow
- Russia
| | - Valentin V. Novikov
- Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences
- Moscow
- Russia
| | - Yan Z. Voloshin
- Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences
- Moscow
- Russia
- Gubkin Russian State University of Oil and Gas
- 119991 Moscow
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3
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Dudkin SV, Erickson NR, Vologzhanina AV, Novikov VV, Rhoda HM, Holstrom CD, Zatsikha YV, Yusubov MS, Voloshin YZ, Nemykin VN. Preparation, X-ray Structures, Spectroscopic, and Redox Properties of Di- and Trinuclear Iron-Zirconium and Iron-Hafnium Porphyrinoclathrochelates. Inorg Chem 2016; 55:11867-11882. [PMID: 27801586 DOI: 10.1021/acs.inorgchem.6b01936] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The first hybrid di- and trinuclear iron(II)-zirconium(IV) and iron(II)-hafnium(IV) macrobicyclic complexes with one or two apical 5,10,15,20-tetraphenylporphyrin fragments were obtained using transmetalation reaction between n-butylboron-triethylantimony-capped or bis(triethylantimony)-capped iron(II) clathrochelate precursors and dichlorozirconium(IV)- or dichlorohafnium(IV)-5,10,15,20-tetraphenylporphyrins under mild conditions. New di- and trinuclear porphyrinoclathrochelates of general formula FeNx3((Bn-Bu)(MTPP)) and FeNx3(MTPP)2 [M = Zr, Hf; TPP = 5,10,15,20-tetraporphyrinato(2-); Nx = nioximo(2-)] were characterized by one-dimensional (1H and 13C{1H}) and two-dimensional (COSY and HSQC) NMR, high-resolution electrospray ionization mass spectrometry, UV-visible, and magnetic circular dichroism spectra, single-crystal X-ray diffraction experiments, as well as elemental analyses. Redox properties of all complexes were probed using electrochemical and spectroelectrochemical approaches. Electrochemical and spectroelectrochemical data suggestive of a very weak, if any, long-range electronic coupling between two porphyrin π-systems in FeNx3(MTPP)2 complexes. Density functional theory and time-dependent density functional theory calculations were used to correlate spectroscopic signatures and redox properties of new compounds with their electronic structures.
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Affiliation(s)
- Semyon V Dudkin
- Department of Chemistry & Biochemistry, University of Minnesota Duluth , Duluth, Minnesota 55812, United States.,Department of Technology of Organic Substances & Polymer Materials, Tomsk Polytechnic University , 634050 Tomsk, Russia.,Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , 119991 Moscow, Russia
| | - Nathan R Erickson
- Department of Chemistry & Biochemistry, University of Minnesota Duluth , Duluth, Minnesota 55812, United States
| | - Anna V Vologzhanina
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , 119991 Moscow, Russia
| | - Valentin V Novikov
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , 119991 Moscow, Russia
| | - Hannah M Rhoda
- Department of Chemistry & Biochemistry, University of Minnesota Duluth , Duluth, Minnesota 55812, United States
| | - Cole D Holstrom
- Department of Chemistry & Biochemistry, University of Minnesota Duluth , Duluth, Minnesota 55812, United States
| | - Yuriy V Zatsikha
- Department of Chemistry & Biochemistry, University of Minnesota Duluth , Duluth, Minnesota 55812, United States.,Department of Chemistry, University of Manitoba , Winnipeg, Manitoba R3T 2N2, Canada
| | - Mekhman S Yusubov
- Department of Technology of Organic Substances & Polymer Materials, Tomsk Polytechnic University , 634050 Tomsk, Russia
| | - Yan Z Voloshin
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , 119991 Moscow, Russia
| | - Victor N Nemykin
- Department of Chemistry & Biochemistry, University of Minnesota Duluth , Duluth, Minnesota 55812, United States.,Department of Chemistry, University of Manitoba , Winnipeg, Manitoba R3T 2N2, Canada
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4
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Marmier M, Cecot G, Curchod BFE, Pattison P, Solari E, Scopelliti R, Severin K. Surface functionalization of dinuclear clathrochelates via Pd-catalyzed cross-coupling reactions: facile synthesis of polypyridyl metalloligands. Dalton Trans 2016; 45:8422-7. [DOI: 10.1039/c6dt01288d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Clathrochelates can be decorated with pyridyl groups by cross-coupling reactions. They represent interesting ligands for supramolecular chemistry and materials science.
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Affiliation(s)
- Mathieu Marmier
- Institut des Sciences et Ingénierie Chimiques
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Giacomo Cecot
- Institut des Sciences et Ingénierie Chimiques
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Basile F. E. Curchod
- Institut des Sciences et Ingénierie Chimiques
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Philip Pattison
- Laboratory of Crystallography
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
- Swiss-Norwegian Beam Lines at ESRF
| | - Euro Solari
- Institut des Sciences et Ingénierie Chimiques
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Kay Severin
- Institut des Sciences et Ingénierie Chimiques
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
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Wise MD, Holstein JJ, Pattison P, Besnard C, Solari E, Scopelliti R, Bricogne G, Severin K. Large, heterometallic coordination cages based on ditopic metallo-ligands with 3-pyridyl donor groups. Chem Sci 2015; 6:1004-1010. [PMID: 29560187 PMCID: PMC5811078 DOI: 10.1039/c4sc03046j] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 11/03/2014] [Indexed: 12/26/2022] Open
Abstract
Ditopic N-donor ligands with terminal 4-pyridyl groups are omnipresent in coordination-based self-assembly. The utilization of ligands with 3-pyridyl donor groups is significantly less common, because the intrinsic conformational flexibility of these ligands tends to favor the formation of small aggregates. Here, we show that large Pd6L1212+ cages can be obtained by reaction of Pd(ii) salts with metallo-ligands L bearing terminal 3-pyridyl groups. The easy-to-access metallo-ligands contain an Fe(ii) clathrochelate core. These sterically demanding clathrochelate complexes prevent the formation of smaller aggregates, which is observed for less bulky analogous building blocks. The cages were shown to bind BF4- and BPh4- anions in aqueous solvent mixtures, whilst the lateral size of the clathrochelate significantly affects their guest encapsulation behavior.
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Affiliation(s)
- Matthew D Wise
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| | - Julian J Holstein
- GZG , Abteilung Kristallographie , Georg-August-Universität Göttingen , Goldschmidtstr. 1 , 37077 Göttingen , Germany
- Global Phasing Ltd. , Sheraton House , Castle Park Cambridge CB3 0AX , England
| | - Philip Pattison
- Swiss-Norwegian Beamline , ESRF , F-38043 Grenoble , Switzerland
- Laboratory of Crystallography , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland
| | - Celine Besnard
- Laboratory of X-ray Crystallography , University of Geneva , CH-1211-Geneva 4 , Switzerland
| | - Euro Solari
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
| | - Gerard Bricogne
- Global Phasing Ltd. , Sheraton House , Castle Park Cambridge CB3 0AX , England
| | - Kay Severin
- Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland .
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6
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Belaya IG, Svidlov SV, Dolganov AV, Zelinskii GE, Potapova TV, Vologzhanina AV, Varzatskii OA, Bubnov YN, Voloshin YZ. Apically linked iron(II) α-dioximate and α-oximehydrazonate bis-clathrochelates: synthesis, structure and electrocatalytic properties. Dalton Trans 2013; 42:13667-78. [PMID: 23903469 DOI: 10.1039/c3dt50881a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Iron(II) α-oximehydrazonate and α-dioximate bis-clathrochelates with apical hydrocarbon linkers were obtained by template condensation on an iron(II) ion followed by H(+)-catalyzed macrobicyclization of the bis-semiclathrochelate precursor with formaldehyde and triethyl orthoformate, and by transmetallation of the triethylantimony-containing clathrochelate precursor with diboron-containing bifunctional Lewis acids, respectively. The geometry of the para-phenylenediboron-capped iron(II) bis-clathrochelate studied by single-crystal X-ray diffraction is intermediate between a trigonal prism and a trigonal antiprism with a distortion angle of 20.4°; the rigidity of its C6H4 linker results in the presence of the expected three-fold pseudo-rotational B···Fe···B···B···Fe···B axis and a staggered conformation of the cyclohexane-containing chelate moieties. The cyclic voltammograms (CVs) for the oximehydrazonate bis-clathrochelates contain single one-electron (for each metallocentre, and therefore, two electrons per molecule) quasi-reversible reduction waves assigned to the redox-processes of Fe(2+/+), and no interaction is observed between the two encapsulated iron(I)-containing metallocenters; six strong electron-withdrawing ethoxy substituents in the 1,3,5-triazacyclohexane capping fragments substantially affect the potential of this reduction. The corresponding waves for the dioximate complexes are irreversible: due to the structural rigidity of the caging tris-dioximate ligands, their reduced dianionic forms are unstable on the CV time scale. The CV for the hexaethoxy bis-clathrochelate complex contains one two-electron reversible oxidation wave assigned to the metal-centered oxidation of Fe(2+/3+), whereas those for its dioximate analogs are quasi-reversible. The relative lability of the ligand cavity in binuclear oximehydrazonates causes a stabilization of both the oxidized and the reduced forms; the reduced iron(I)-containing species are highly electrocatalytically active in the hydrogen-producing 2H(+)/H2 reaction. Their higher activity as compared with that for dioximate bis-clathrochelates was explained by the higher availability of the catalytically active metallocentres for H(+) ions.
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Affiliation(s)
- Irina G Belaya
- Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 119991 Moscow, Russia
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