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Mishra S, Dolkar T, Pareek A, Bonthapally R, Maity DK, Dutta A, Ghosh S. Beyond S and Se: Electrocatalytic Hydrogen Production by Tellurolate-Bridged Co(III)-Mn(I) Heterodinuclear Complexes. Inorg Chem 2024; 63:16918-16927. [PMID: 39190592 DOI: 10.1021/acs.inorgchem.4c02931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
In the pursuit of efficient electrocatalysts for the hydrogen evolution reaction (HER), a series of manganese and cobalt heterodinuclear complexes have been synthesized and characterized that have a stark resemblance with the [NiFe]-hydrogenase active site structure. Irradiation of [Mn2(CO)10] in the presence of 1.5 eq of [NaEPh] [E = S, Se, Te] followed by reaction with [Cp*CoCl]2 led to the formation of half-sandwiched trichalcogenate-bridged heterodinuclear complexes [{Mn(CO)3}(μ-EPh)3(CoCp*)] [E = S (C1); Se (C2) and Te (C3)]. The reaction of these heterodinuclear trichalcogenate-bridged complexes with [LiBH4·THF] yielded the corresponding dichalcogenate hydride-bridged heterobimetallic complexes [(CO)3Mn(μ-EPh)2(μ-H)(CoCp*)] [E = S (C5); Se (C6) and Te (C7)], which closely imitate the Ni-R intermediate of [NiFe]-hydrogenase. The resultant complexes (C5-C7) displayed impressive H2 production in DMF in the presence of HBF4, whereas the Te-based complex (C7) showcased the highest TON (184 h-1) with an impressive Faradaic efficiency of >98%. The DFT investigations revealed a unique role of bridging chalcogens in catalysis, wherein, depending on the identity of the chalcogen (S, Se, or Te), protonation could occur via two distinct routes. This study represents a rare example of the full trio of S/Se/Te-based heterodinuclear complexes whose electrocatalytic HER activity has been probed under analogous conditions.
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Affiliation(s)
- Shivankan Mishra
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Thinles Dolkar
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Anvay Pareek
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | | | - Dilip Kumar Maity
- Chemical Sciences, Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
- Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Arnab Dutta
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
- Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
- National Center of Excellence CCU, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Sundargopal Ghosh
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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2
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Pradhan AN, Bairagi S, Ghosh S. Reactivity of [(Cp*CoPh)(Cp*Co)(μ-TePh)(μ-k 2-Te,H-TeBH 3)] Toward [ M(CO) 5·THF] ( M = Mo and W), CS 2, and [Fe 2(CO) 9]. Inorg Chem 2024; 63:15648-15658. [PMID: 39120159 DOI: 10.1021/acs.inorgchem.4c01430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
Syntheses and structural elucidation of homo- and heterochalcogen-bridged complexes of cobalt are described. The photolytic reaction of bimetallic hydridoborate species [(Cp*CoPh)(Cp*Co)(μ-TePh)(μ-k2-Te,H-TeBH3)] (1) in the presence of [M(CO)5·THF] (M = Mo and W) afforded unprecedented tellurolate-bridged [(Cp*Co)2(μ-TePh)3]+[TePh{M(CO)5}2]- (M = Mo (2), W (3)) as ionic complexes with the release of BH3. Complex 2 has three bridged-TePh moieties between two Cp*Co fragments in the cation part, whereas the anionic part, [TePh{M(CO)5}2]-, shows a distorted trigonal pyramidal core. In order to synthesize mixed chalcogenate-bridged complexes having both S and Te, we carried out the photolytic reaction of 1 with CS2. Although the objective of generating mixed chalcogen-bridged complex [(Cp*Co)2(μ-TePh)2(μ-S)] was not achieved, the reaction yielded an unusual bimetallic thiotellurite complex [(Cp*Co)2(μ-S3TeS3-κ2S:κ2Te:κ2S')] (4). Complex 4 has two wings, each consisting of three sulfur atoms, that are connected to two Co-atoms and one Te-atom. Further, to synthesize the Fe analogue of 2 and 3, a similar reaction was carried out with [Fe2(CO)9]. However, the reaction led to the formation of the trimetallic complex [Cp*Co(CO)(μ3-Te)2{Fe2(CO)6}] (5). These complexes were characterized by employing different multinuclear NMR, IR spectroscopies, single-crystal X-ray diffraction analyses, and mass spectrometry. Additionally, computational analyses of these chalcogen-bridged neutral and ionic complexes were conducted to offer insight into their bonding.
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Affiliation(s)
- Alaka Nanda Pradhan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 60036, India
| | - Subhash Bairagi
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 60036, India
| | - Sundargopal Ghosh
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 60036, India
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3
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Chandra S, Hazari AS, Song Q, Hunger D, Neuman NI, van Slageren J, Klemm E, Sarkar B. Remarkable Enhancement of Catalytic Activity of Cu-Complexes in the Electrochemical Hydrogen Evolution Reaction by Using Triply Fused Porphyrin. CHEMSUSCHEM 2023; 16:e202201146. [PMID: 36173981 PMCID: PMC10107348 DOI: 10.1002/cssc.202201146] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/22/2022] [Indexed: 06/16/2023]
Abstract
A bimetallic triply fused copper(II) porphyrin complex (1) was prepared, comprising two monomeric porphyrin units linked through β-β, meso-meso, β'-β' triple covalent linkages and exhibiting remarkable catalytic activity for the electrochemical hydrogen evolution reaction in comparison to the analogous monomeric copper(II) porphyrin complex (2). Electrochemical investigations in the presence of a proton source (trifluoroacetic acid) confirmed that the catalytic activity of the fused metalloporphyrin occurred at a significantly lower overpotential (≈320 mV) compared to the non-fused monomer. Controlled potential electrolysis combined with kinetic analysis of catalysts 1 and 2 confirmed production of hydrogen, with 96 and 71 % faradaic efficiencies and turnover numbers of 102 and 18, respectively, with an observed rate constant of around 107 s-1 for the dicopper complex. The results thus firmly establish triply fused porphyrin ligands as outstanding candidates for generating highly stable and efficient molecular electrocatalysts in combination with earth-abundant 3d transition metals.
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Affiliation(s)
- Shubhadeep Chandra
- Lehrstuhl für Anorganische KoordinationschemieInstitut für Anorganische ChemieUniversität StuttgartPfaffenwaldring 5570569StuttgartGermany
| | - Arijit Singha Hazari
- Lehrstuhl für Anorganische KoordinationschemieInstitut für Anorganische ChemieUniversität StuttgartPfaffenwaldring 5570569StuttgartGermany
| | - Qian Song
- Institut für Technische ChemieUniversität StuttgartPfaffenwaldring 5570569StuttgartGermany
| | - David Hunger
- Institut für Physikalische ChemieUniversität StuttgartPfaffenwaldring 5570569StuttgartGermany
| | - Nicolás. I. Neuman
- Lehrstuhl für Anorganische KoordinationschemieInstitut für Anorganische ChemieUniversität StuttgartPfaffenwaldring 5570569StuttgartGermany
- Instituto de Desarrollo Tecnológico para la Industria Química CCTINTEC, UNL-CONICETPredio CONICET Santa Fe Dr. Alberto CassanoRuta Nacional N° 168, Km 0, Paraje El PozoS3000ZAASanta FeArgentina
| | - Joris van Slageren
- Institut für Physikalische ChemieUniversität StuttgartPfaffenwaldring 5570569StuttgartGermany
| | - Elias Klemm
- Institut für Technische ChemieUniversität StuttgartPfaffenwaldring 5570569StuttgartGermany
| | - Biprajit Sarkar
- Lehrstuhl für Anorganische KoordinationschemieInstitut für Anorganische ChemieUniversität StuttgartPfaffenwaldring 5570569StuttgartGermany
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4
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Loke WLJ, Guo W, Sohail M, Bengali AA, Fan WY. Manganese Tricarbonyl Diimine Bromide Complexes as Electrocatalysts for Proton Reduction. Inorg Chem 2022; 61:20699-20708. [DOI: 10.1021/acs.inorgchem.2c03675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Wen Liang James Loke
- Department of Chemistry, National University of Singapore, 3 Science Drive 3,117543, Singapore
| | - Wenzhuo Guo
- Department of Chemistry, National University of Singapore, 3 Science Drive 3,117543, Singapore
| | - Muhammad Sohail
- Department of Chemistry, Texas A&M University at Qatar, Doha23874, Qatar
| | - Ashfaq A. Bengali
- Department of Chemistry, Texas A&M University at Qatar, Doha23874, Qatar
| | - Wai Yip Fan
- Department of Chemistry, National University of Singapore, 3 Science Drive 3,117543, Singapore
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5
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Kumar N, Kaur‐Ghumaan S. Synthesis, Characterization and Electrochemical Studies of bis(Monothiolato) {FeFe} Complexes [Fe
2
(μ‐SC
6
H
4
‐OMe‐
m
)
2
(CO)
5
L] (L=CO, PCy
3
, PPh
3
). ChemistrySelect 2022. [DOI: 10.1002/slct.202203392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Naveen Kumar
- Department of Chemistry University of Delhi Delhi 110007 India
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6
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Kato T, Tatematsu R, Nakao K, Inomata T, Ozawa T, Masuda H. Effect of Counteranions in Electrocatalytic Hydrogen Generation Promoted by Bis(phosphinopyridyl) Ni(II) Complexes. Inorg Chem 2021; 60:7670-7679. [PMID: 33955747 DOI: 10.1021/acs.inorgchem.0c03657] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We previously reported the preparation and characterization of a Ni(II) complex capable of electrocatalytic hydrogen generation. The complex [Ni(LNH2)2Cl]Cl (1) includes a 6-((diphenylphosphino)methyl)pyridin-2-amine ligand (LNH2), which has an amino group as a base that acts as a proton transfer site by virtue of its location near the metal center. In order to study the effect of counteranions in hydrogen generation, two additional NiII(LNH2) complexes with weakly coordinating/noncoordinating counteranions, [Ni(LNH2)2](OTs)2 (OTs- = p-toluenesulfonate) (2) and [Ni(LNH2)2](BF4)2 (3), were synthesized. Their X-ray crystal structures reveal that the Ni(II) ion is coordinated with two bidentate LNH2 ligands in both complexes. Complex 2 contains both trans and cis isomers in the unit cell. The former is in an axially elongated square-pyramidal geometry (τ5 = 0.17), and the latter is in a nearly square planar geometry (τ4 = 0.11) with two weakly interacting OTs- anions at the axial sites. Complex 3 has only the cis isomer in the solid state, which is in a nearly square planar geometry (τ4 = 0.10). These complexes are slightly different from 1, which has a distorted-square-pyramidal geometry (τ5 = 0.25) with a coordinated chloride anion. UV-vis spectra of 2 and 3 in MeCN show a spectral pattern characteristic of a square-planar Ni(II) complex. These spectra are slightly different from the unique spectrum of 1, which is typical of an axially coordinating Ni(II) species as a result of having a Cl- anion at the apical position. Electrocatalytic hydrogen generation promoted by these three Ni(II) complexes (1.0 mmol) demonstrates an increase in the catalytic current induced by stepwise addition of HOAc (pKa = 22.3 in MeCN) as a proton source. The complexes demonstrate turnover frequencies (TOF) of 3800 s-1 for 1, 5400 s-1 for 2, and 8800 s-1 for 3 in MeCN (3 mL) containing 0.1 M [n-Bu4N](ClO4) in the presence of HOAc (145 equiv) at overpotentials of ca. 530, 490, and 430 mV, respectively.
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Affiliation(s)
- Takuma Kato
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
| | - Ryo Tatematsu
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
| | - Kenichi Nakao
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
| | - Tomohiko Inomata
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
| | - Tomohiro Ozawa
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
| | - Hideki Masuda
- Department of Applied Chemistry, Aichi Institute of Technology, 1247 Yachigusa, Yakusa-cho, Toyota 470-0392, Japan
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7
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Yang J, He S, Wu Q, Zhang P, Chen L, Huang F, Li F. A bio-inspired mononuclear manganese catalyst for high-rate electrochemical hydrogen production. Dalton Trans 2021; 50:4783-4788. [PMID: 33725080 DOI: 10.1039/d1dt00672j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
[FeFe]-hydrogenase (H2ase) catalyzes hydrogen evolution reactions (HERs), with an excellent performance that rivals that of platinum, the active site of which is built with crucial structural features required for efficient H-H bond formation. Herein, we report a mononuclear manganese complex (1) that contains a square pyramid coordination sphere and an intramolecular aniline as the proton relay, consistent with the crucial features of the active site in H2ase. Benefitting from these features, complex 1 electrocatalyzes the HER with a turnover frequency (TOF) exceeding 10 000 s-1 at -1.45 V (versus the ferrocenium/ferrocene couple) using anilinium tetrafluoroborate as a proton source. This work provides the first Mn-based functional model of H2ase, serving as a new paradigm for a high performance, low cost, environmentally benign hydrogen production electrocatalyst.
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Affiliation(s)
- Jie Yang
- State Key Laboratory of Environment-Friendly Energy Material, School of Materials Science and Engineering. Southwest University of Science and Technology, Mianyang 621010, P. R. China.
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8
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Beltrán TF, Zaragoza G, Delaude L. Synthesis and characterization of cationic manganese–carbonyl complexes bearing imidazol(in)ium-2-dithiocarboxylate ligands. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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9
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Jökel J, Schwer F, von Delius M, Apfel UP. A dinuclear porphyrin-macrocycle as efficient catalyst for the hydrogen evolution reaction. Chem Commun (Camb) 2020; 56:14179-14182. [PMID: 33107896 DOI: 10.1039/d0cc05229a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We report an unprecedented dinuclear catalyst for the electrochemical hydrogen evolution reaction (HER). A macrocyclic porphyrin complex comprising two nickel centres connected via redox mediating linker molecules gives rise to efficient catalysis, significantly outperforming a mononuclear reference catalyst.
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Affiliation(s)
- Julia Jökel
- Inorganic Chemistry I, Ruhr-University Bochum, Universitätsstr. 150, 44801 Bochum, Germany.
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10
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Faujdar H, Spannenberg A, Kaur-Ghumaan S. Structural and HER studies of diphosphine-monothiolate complexes [Fe2(CO)4(μ-naphthalene-2-thiolate)2(μ-dppe)] and [Fe2(CO)4(μ-naphthalene-2-thiolate)2(μ-DPEPhos)]. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Affiliation(s)
- Vishakha Kaim
- Department of Chemistry; University of Delhi; 110007 Delhi India
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12
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Dalle K, Warnan J, Leung JJ, Reuillard B, Karmel IS, Reisner E. Electro- and Solar-Driven Fuel Synthesis with First Row Transition Metal Complexes. Chem Rev 2019; 119:2752-2875. [PMID: 30767519 PMCID: PMC6396143 DOI: 10.1021/acs.chemrev.8b00392] [Citation(s) in RCA: 437] [Impact Index Per Article: 87.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Indexed: 12/31/2022]
Abstract
The synthesis of renewable fuels from abundant water or the greenhouse gas CO2 is a major step toward creating sustainable and scalable energy storage technologies. In the last few decades, much attention has focused on the development of nonprecious metal-based catalysts and, in more recent years, their integration in solid-state support materials and devices that operate in water. This review surveys the literature on 3d metal-based molecular catalysts and focuses on their immobilization on heterogeneous solid-state supports for electro-, photo-, and photoelectrocatalytic synthesis of fuels in aqueous media. The first sections highlight benchmark homogeneous systems using proton and CO2 reducing 3d transition metal catalysts as well as commonly employed methods for catalyst immobilization, including a discussion of supporting materials and anchoring groups. The subsequent sections elaborate on productive associations between molecular catalysts and a wide range of substrates based on carbon, quantum dots, metal oxide surfaces, and semiconductors. The molecule-material hybrid systems are organized as "dark" cathodes, colloidal photocatalysts, and photocathodes, and their figures of merit are discussed alongside system stability and catalyst integrity. The final section extends the scope of this review to prospects and challenges in targeting catalysis beyond "classical" H2 evolution and CO2 reduction to C1 products, by summarizing cases for higher-value products from N2 reduction, C x>1 products from CO2 utilization, and other reductive organic transformations.
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Affiliation(s)
| | | | - Jane J. Leung
- Christian Doppler Laboratory
for Sustainable SynGas Chemistry, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Bertrand Reuillard
- Christian Doppler Laboratory
for Sustainable SynGas Chemistry, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Isabell S. Karmel
- Christian Doppler Laboratory
for Sustainable SynGas Chemistry, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Erwin Reisner
- Christian Doppler Laboratory
for Sustainable SynGas Chemistry, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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13
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Kaim V, Natarajan M, Kaur‐Ghumaan S. Dinuclear Manganese Carbonyl Complexes: Electrocatalytic Reduction of Protons to Dihydrogen. ChemistrySelect 2019. [DOI: 10.1002/slct.201803754] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Vishakha Kaim
- Department of ChemistryUniversity of Delhi Delhi-110007 India
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14
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Luo S, Siegler MA, Bouwman E. Transition Metal Compounds of Pyridine‐Amide‐Functionalized Carbene Ligands: Synthesis, Structure, and Electrocatalytic Properties in Proton Reduction. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801131] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Siyuan Luo
- Leiden Institute of Chemistry Gorlaeus Laboratories Leiden University P.O. Box 9502 2300 RA Leiden The Netherlands
| | - Maxime A. Siegler
- Department of Chemistry Johns Hopkins University 3400 N. Charles Street 21218 Baltimore Maryland USA
| | - Elisabeth Bouwman
- Leiden Institute of Chemistry Gorlaeus Laboratories Leiden University P.O. Box 9502 2300 RA Leiden The Netherlands
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15
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A tetranuclear iron complex: substitution with triphenylphosphine ligand and investigation into electrocatalytic proton reduction. J CHEM SCI 2018. [DOI: 10.1007/s12039-018-1529-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Yap CP, Chong YY, Chwee TS, Fan WY. Electrocatalytic proton reduction by an air-stable nickel(ii)-thiolato PNN pincer complex. Dalton Trans 2018; 47:8483-8488. [PMID: 29901669 DOI: 10.1039/c8dt00911b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We report an air-stable nickel(ii)-thiolato PNN pincer complex [(PNN)NiII(SC6H4Me)]+[MeC6H4SO3]- (PNN = 2-((di-tert-butylphosphinomethyl-6-diethylaminomethyl)pyridine)) which is capable of reducing protons at an overpotential of 0.54 V at low acid concentrations. The proton reduction can be catalysed using weak or strong acids such as acetic acid and trifluoroacetic acid respectively. In contrast, the chloro and nitrate derivatives of the nickel pincer complex behave as poorer catalysts. A mechanism accounting for the role of the ligand in proton reduction is also briefly outlined.
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Affiliation(s)
- Chew Pheng Yap
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543.
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17
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Mukhopadhyay TK, MacLean NL, Flores M, Groy TL, Trovitch RJ. Isolation of Mn(I) Compounds Featuring a Reduced Bis(imino)pyridine Chelate and Their Relevance to Electrocatalytic Hydrogen Production. Inorg Chem 2018; 57:6065-6075. [DOI: 10.1021/acs.inorgchem.8b00588] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Tufan K. Mukhopadhyay
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States
| | - Nicholas L. MacLean
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States
| | - Marco Flores
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States
| | - Thomas L. Groy
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States
| | - Ryan J. Trovitch
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States
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18
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Beltrán TF, Zaragoza G, Delaude L. Mono- and bimetallic manganese-carbonyl complexes and clusters bearing imidazol(in)ium-2-dithiocarboxylate ligands. Dalton Trans 2018; 46:1779-1788. [PMID: 28128834 DOI: 10.1039/c6dt04780g] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Five complexes with the generic formula fac-[MnBr(CO)3(S2C·NHC)] were obtained by reacting [MnBr(CO)5] with a set of representative imidazol(in)ium-2-dithiocarboxylate zwitterions. These ligands are the adducts of N-heterocyclic carbenes (NHCs) and carbon disulfide. The mononuclear Mn(i) derivatives were coupled with Na[Mn(CO)5] to afford bimetallic [Mn2(CO)6(S2C·NHC)] clusters. Yet, the most convenient strategy to access these dinuclear Mn(0) products implied a direct carbonyl substitution from the [Mn2(CO)10] dimer. The molecular structures of three monometallic and four bimetallic compounds were elucidated by single crystal X-ray diffraction analysis. In the monometallic complexes, the NHC·CS2 ligands exhibited a bidentate κ2-S,S' coordination mode with an S-C-S bite angle of about 116°. In the dinuclear clusters, the CS2- unit acted as a chelate toward one manganese center and as a pseudoallylic ligand toward the other one. The S-C-S bite angle was reduced to ca. 104°. Thus, the zwitterions displayed a remarkable flexibility, which also permitted a staggered arrangement of the carbonyl groups in the bimetallic systems. Examination of the [small nu, Greek, macron]CO absorption bands on IR spectroscopy helped identify the presence of fac-Mn(CO)3 or Mn2(CO)6 motifs, while the 13C NMR chemical shift of the CS2- moiety was a reliable indicator for monitoring its hapticity. Whereas the dinuclear clusters were air- and moisture-stable crystalline solids, mononuclear halido derivatives displayed only a limited stability under aerobic conditions. Both types of compounds underwent rather unselective, extensive fragmentations in the gas phase, in sharp contrast with the analogous rhenium derivatives that led to clean sequential decarbonylation processes upon collision-induced dissociation.
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Affiliation(s)
- Tomás F Beltrán
- Laboratory of Organometallic Chemistry and Homogeneous Catalysis, Institut de Chimie (B6a), Allée du six Août 13, Quartier Agora, Université de Liège, 4000 Liège, Belgium.
| | - Guillermo Zaragoza
- Unidade de Difracción de Raios X, Edificio CACTUS, Universidade de Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, Spain
| | - Lionel Delaude
- Laboratory of Organometallic Chemistry and Homogeneous Catalysis, Institut de Chimie (B6a), Allée du six Août 13, Quartier Agora, Université de Liège, 4000 Liège, Belgium.
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19
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Fukuzumi S, Lee YM, Nam W. Thermal and photocatalytic production of hydrogen with earth-abundant metal complexes. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.07.014] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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20
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Luo S, Siegler MA, Bouwman E. Dinuclear Nickel Complexes of Thiolate-Functionalized Carbene Ligands and Their Electrochemical Properties. Organometallics 2017; 37:740-747. [PMID: 29551851 PMCID: PMC5850092 DOI: 10.1021/acs.organomet.7b00576] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Indexed: 02/04/2023]
Abstract
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Four
dimeric nickel(II) complexes [Ni2Cl2(BnC2S)2] [1], [Ni2Cl2(BnC3S)2] [2], [Ni2(PyC2S)2]Br2 [3]Br2, and [Ni2(PyC3S)2]Br2 [4]Br2 of four different
thiolate-functionalized N-heterocyclic carbene (NHC) ligands were
synthesized, and their structures have been determined by single-crystal
X-ray crystallography. The four ligands differ by the alkyl chain
length between the thiolate group and the benzimidazole nitrogen (two
−C2– or three −C3–
carbon atoms) and the second functionality at the NHC being a benzyl
(Bn) or a pyridylmethyl (Py) group. The nickel(II) ions are coordinated
to the NHC carbon atom and the pendent thiolate group, which bridges
to the second nickel(II) ion creating the dinuclear structure. Additionally,
in compounds [1] and [2], the fourth coordination
position of the square-planar Ni(II) centers is occupied by the halide
ions, whereas in [3]2+ and [4]2+, the additional pendant pyridylmethyl groups complete
the coordination spheres of the nickel ions. The electrochemical properties
of the four complexes were studied using cyclic voltammetry and controlled-potential
coulometry methods. The thiolate-functionalized carbene complexes
[1] and [2] appear to be poor electrocatalysts
for the hydrogen evolution reaction; the complexes [3]Br2 and [4]Br2, bearing an extra
pyridylmethyl group, show higher catalytic activity in proton reduction,
indicating that the pyridine group plays an important role in the
catalytic cycle.
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Affiliation(s)
- Siyuan Luo
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Maxime A Siegler
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles Street, Baltimore, Maryland 21218, United States
| | - Elisabeth Bouwman
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
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Valyaev DA, Wei D, Elangovan S, Cavailles M, Dorcet V, Sortais JB, Darcel C, Lugan N. Half-Sandwich Manganese Complexes Bearing Cp Tethered N-Heterocyclic Carbene Ligands: Synthesis and Mechanistic Insights into the Catalytic Ketone Hydrosilylation. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00785] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Dmitry A. Valyaev
- LCC-CNRS, Université de Toulouse, INPT, UPS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
| | - Duo Wei
- UMR 6226 CNRS-Université Rennes 1, Institut
des Sciences Chimiques de Rennes, Team Organometallics: Materials
and Catalysis, Centre for Catalysis and Green Chemistry, Campus de Beaulieu, 263 av. du Général
Leclerc, 35042 Rennes Cedex, France
| | - Saravanakumar Elangovan
- UMR 6226 CNRS-Université Rennes 1, Institut
des Sciences Chimiques de Rennes, Team Organometallics: Materials
and Catalysis, Centre for Catalysis and Green Chemistry, Campus de Beaulieu, 263 av. du Général
Leclerc, 35042 Rennes Cedex, France
| | - Matthieu Cavailles
- LCC-CNRS, Université de Toulouse, INPT, UPS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
| | - Vincent Dorcet
- UMR 6226 CNRS-Université Rennes 1, Institut
des Sciences Chimiques de Rennes, Team Organometallics: Materials
and Catalysis, Centre for Catalysis and Green Chemistry, Campus de Beaulieu, 263 av. du Général
Leclerc, 35042 Rennes Cedex, France
| | - Jean-Baptiste Sortais
- UMR 6226 CNRS-Université Rennes 1, Institut
des Sciences Chimiques de Rennes, Team Organometallics: Materials
and Catalysis, Centre for Catalysis and Green Chemistry, Campus de Beaulieu, 263 av. du Général
Leclerc, 35042 Rennes Cedex, France
| | - Christophe Darcel
- UMR 6226 CNRS-Université Rennes 1, Institut
des Sciences Chimiques de Rennes, Team Organometallics: Materials
and Catalysis, Centre for Catalysis and Green Chemistry, Campus de Beaulieu, 263 av. du Général
Leclerc, 35042 Rennes Cedex, France
| | - Noël Lugan
- LCC-CNRS, Université de Toulouse, INPT, UPS, 205 route de Narbonne, 31077 Toulouse Cedex 4, France
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22
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Valyaev DA, Lavigne G, Lugan N. Manganese organometallic compounds in homogeneous catalysis: Past, present, and prospects. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.06.015] [Citation(s) in RCA: 235] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Synthesis, crystal structure and electrochemical study of (μ-κ2C:κ2S-NHC+-CS)[Fe2(CO)6]− generated from the reaction of NHC+-CS2− with Fe3(CO)12. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.04.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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24
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Sampson MD, Kubiak CP. Electrocatalytic Dihydrogen Production by an Earth-Abundant Manganese Bipyridine Catalyst. Inorg Chem 2015; 54:6674-6. [DOI: 10.1021/acs.inorgchem.5b01080] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthew D. Sampson
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, Mail Code 0358, La Jolla, California 92093-0358, United States
| | - Clifford P. Kubiak
- Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, Mail Code 0358, La Jolla, California 92093-0358, United States
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25
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Hou K, Lauw SJL, Webster RD, Fan WY. Electrochemical proton reduction catalysed by selenolato-manganese carbonyl complexes. RSC Adv 2015. [DOI: 10.1039/c5ra04432d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Four manganese selenolato carbonyl complexes have been synthesized and used as electrocatalyst for proton reduction.
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Affiliation(s)
- Kaipeng Hou
- Department of Chemistry
- National University of Singapore
- Singapore 117543
| | - Sherman J. L. Lauw
- Division of Chemistry & Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Richard D. Webster
- Division of Chemistry & Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Wai Yip Fan
- Department of Chemistry
- National University of Singapore
- Singapore 117543
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