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Liu Y, Chatterjee S, Cutsail GE, Peredkov S, Gupta SK, Dechert S, DeBeer S, Meyer F. Cu 4S Cluster in "0-Hole" and "1-Hole" States: Geometric and Electronic Structure Variations for the Active Cu Z* Site of N 2O Reductase. J Am Chem Soc 2023; 145:18477-18486. [PMID: 37565682 PMCID: PMC10450684 DOI: 10.1021/jacs.3c04893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Indexed: 08/12/2023]
Abstract
The active site of nitrous oxide reductase (N2OR), a key enzyme in denitrification, features a unique μ4-sulfido-bridged tetranuclear Cu cluster (the so-called CuZ or CuZ* site). Details of the catalytic mechanism have remained under debate and, to date, synthetic model complexes of the CuZ*/CuZ sites are extremely rare due to the difficulty in building the unique {Cu4(μ4-S)} core structure. Herein, we report the synthesis and characterization of [Cu4(μ4-S)]n+ (n = 2, 2; n = 3, 3) clusters, supported by a macrocyclic {py2NHC4} ligand (py = pyridine, NHC = N-heterocyclic carbene), in both their 0-hole (2) and 1-hole (3) states, thus mimicking the two active states of the CuZ* site during enzymatic N2O reduction. Structural and electronic properties of these {Cu4(μ4-S)} clusters are elucidated by employing multiple methods, including X-ray diffraction (XRD), nuclear magnetic resonance (NMR), UV/vis, electron paramagnetic resonance (EPR), Cu/S K-edge X-ray emission spectroscopy (XES), and Cu K-edge X-ray absorption spectroscopy (XAS) in combination with time-dependent density functional theory (TD-DFT) calculations. A significant geometry change of the {Cu4(μ4-S)} core occurs upon oxidation from 2 (τ4(S) = 0.46, seesaw) to 3 (τ4(S) = 0.03, square planar), which has not been observed so far for the biological CuZ(*) site and is unprecedented for known model complexes. The single electron of the 1-hole species 3 is predominantly delocalized over two opposite Cu ions via the central S atom, mediated by a π/π superexchange pathway. Cu K-edge XAS and Cu/S K-edge XES corroborate a mixed Cu/S-based oxidation event in which the lowest unoccupied molecular orbital (LUMO) has a significant S-character. Furthermore, preliminary reactivity studies evidence a nucleophilic character of the central μ4-S in the fully reduced 0-hole state.
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Affiliation(s)
- Yang Liu
- Institute
of Inorganic Chemistry, University of Göttingen, Tammannstraße 4, 37077 Göttingen, Germany
| | - Sayanti Chatterjee
- Max
Planck Institute for Chemical Energy Conversion, Stiftstrasse 34−36, 45470 Mülheim an der Ruhr, Germany
| | - George E. Cutsail
- Max
Planck Institute for Chemical Energy Conversion, Stiftstrasse 34−36, 45470 Mülheim an der Ruhr, Germany
- Institute
of Inorganic Chemistry, University of Duisburg-Essen, Universitätsstraße 7, 45117 Essen, Germany
| | - Sergey Peredkov
- Max
Planck Institute for Chemical Energy Conversion, Stiftstrasse 34−36, 45470 Mülheim an der Ruhr, Germany
| | - Sandeep K. Gupta
- Institute
of Inorganic Chemistry, University of Göttingen, Tammannstraße 4, 37077 Göttingen, Germany
| | - Sebastian Dechert
- Institute
of Inorganic Chemistry, University of Göttingen, Tammannstraße 4, 37077 Göttingen, Germany
| | - Serena DeBeer
- Max
Planck Institute for Chemical Energy Conversion, Stiftstrasse 34−36, 45470 Mülheim an der Ruhr, Germany
| | - Franc Meyer
- Institute
of Inorganic Chemistry, University of Göttingen, Tammannstraße 4, 37077 Göttingen, Germany
- International
Center for Advanced Studies of Energy Conversion (ICASEC), University of Göttingen, Tammannstraße 6, 37077 Göttingen, Germany
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2
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Sinhababu S, Lakliang Y, Mankad NP. Recent advances in cooperative activation of CO 2 and N 2O by bimetallic coordination complexes or binuclear reaction pathways. Dalton Trans 2022; 51:6129-6147. [PMID: 35355033 DOI: 10.1039/d2dt00210h] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The gaseous small molecules, CO2 and N2O, play important roles in climate change and ozone layer depletion, and they hold promise as underutilized reagents and chemical feedstocks. However, productive transformations of these heteroallenes are difficult to achieve because of their inertness. In nature, these gases are cycled through ecological systems by metalloenzymes featuring multimetallic active sites that employ cooperative mechanisms. Thus, cooperative bimetallic chemistry is an important strategy for synthetic systems, as well. In this Perspective, recent advances (since 2010) in cooperative activation of CO2 and N2O are reviewed, including examples involving s-block, p-block, d-block, and f-block metals and different combinations thereof.
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Affiliation(s)
- Soumen Sinhababu
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St., Chicago, IL 60607, USA.
| | - Yutthana Lakliang
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St., Chicago, IL 60607, USA.
| | - Neal P Mankad
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St., Chicago, IL 60607, USA.
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3
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Sato CM, Walde RK, Bacsa J, Jordan AJ, Sadighi JP. Ligand-based control of nuclearity in (NHC)gold(I) sulfides. Dalton Trans 2021; 50:15721-15729. [PMID: 34697620 DOI: 10.1039/d1dt02616j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
N-Heterocyclic carbene (NHC) ligands support gold(I) sulfide complexes of varying nuclearity and charge. For sterically undemanding ligands, gold(I) chlorides react with sulfide to form trigold μ3-sulfido cations as the first observed products. The ligand IMes [1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene] supports a monomeric cation, whereas the ICy-(1,3-dicyclohexylimidazol-2-ylidene-) supported cation crystallises as a dimer linked through an aurophilic interaction. The more sterically demanding IDipp [1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene] supports a terminal hydrosulfide, a (μ-hydrosulfido)digold cation, and a μ3-sulfido cation. Use of the expanded-ring NHC 7Dipp [1,3-bis(2,6-diisopropylphenyl)-4,5,6,7-tetrahydro-1,3-diazepin-2-ylidene] allows the isolation of a neutral digold sulfide.
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Affiliation(s)
- Christopher M Sato
- School of Chemistry & Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive NW, Atlanta, GA, USA, 30332.
| | - Rebecca K Walde
- School of Chemistry & Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive NW, Atlanta, GA, USA, 30332.
| | - John Bacsa
- School of Chemistry & Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive NW, Atlanta, GA, USA, 30332. .,X-ray Crystallography Center, Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, GA, USA, 30322
| | - Abraham J Jordan
- School of Chemistry & Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive NW, Atlanta, GA, USA, 30332.
| | - Joseph P Sadighi
- School of Chemistry & Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive NW, Atlanta, GA, USA, 30332.
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4
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Copper carbene complexes. Synthesis and structural analysis of a chloro-bridged dicopper cation and the triosmium-copper carbene cluster complex HOs3(CO)11[µ-Cu(IPr)]. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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5
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Pladzyk A, Kowalkowska-Zedler D, Ciborska A, Schnepf A, Dołęga A. Complexes of silanethiolate ligands: Synthesis, structure, properties and application. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Wu W, De Hont JT, Parveen R, Vlaisavljevich B, Tolman WB. Sulfur-Containing Analogues of the Reactive [CuOH] 2+ Core. Inorg Chem 2021; 60:5217-5223. [PMID: 33733755 DOI: 10.1021/acs.inorgchem.1c00216] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
With the aim of drawing comparisons to the highly reactive complex LCuOH (L = bis(2,6-diisopropylphenylcarboxamido)pyridine), the complexes [Bu4N][LCuSR] (R = H or Ph) were prepared, characterized by spectroscopy and X-ray crystallography, and oxidized at low temperature to generate the species assigned as LCuSR on the basis of spectroscopy and theory. Consistent with the smaller electronegativity of S versus O, redox potentials for the LCuSR-/0 couples were ∼50 mV lower than for LCuOH-/0, and the rates of the proton-coupled electron transfer reactions of LCuSR with anhydrous 1-hydroxy-2,2,6,6-tetramethyl-piperidine at -80 °C were significantly slower (by more than 100 times) than the same reaction of LCuOH. Density functional theory (DFT) and time-dependent DFT calculations on LCuZ (Z = OH, SH, SPh) revealed subtle differences in structural and UV-visible parameters. Further comparison to complexes with Z = F, Cl, and Br using complete active space (CAS) self-consistent field and localized orbital CAS configuration interaction calculations along with a valence-bond-like interpretation of the wave functions showed differences with previously reported results ( J. Am. Chem. Soc. 2020, 142, 8514), and argue for a consistent electronic structure across the entire series of complexes, rather than a change in the nature of the ligand field arrangement for Z = F.
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Affiliation(s)
- Wen Wu
- Department of Chemistry, Washington University in St. Louis, One Brookings Hall, Campus Box 1134, St. Louis, Missouri 63130-4899, United States
| | - Jacqui Tehranchi De Hont
- Department of Chemistry, University of Minnesota, 207 Pleasant Avenue SE, Minneapolis, Minnesota 55455, United States
| | - Riffat Parveen
- University of South Dakota, 414 E. Clark Street, Vermillion, South Dakota 57069, United States
| | - Bess Vlaisavljevich
- University of South Dakota, 414 E. Clark Street, Vermillion, South Dakota 57069, United States
| | - William B Tolman
- Department of Chemistry, Washington University in St. Louis, One Brookings Hall, Campus Box 1134, St. Louis, Missouri 63130-4899, United States
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7
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Rathnayaka SC, Mankad NP. Coordination chemistry of the Cu Z site in nitrous oxide reductase and its synthetic mimics. Coord Chem Rev 2021; 429:213718. [PMID: 33692589 PMCID: PMC7939133 DOI: 10.1016/j.ccr.2020.213718] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Atmospheric nitrous oxide (N2O) has garnered significant attention recently due to its dual roles as an ozone depletion agent and a potent greenhouse gas. Anthropogenic N2O emissions occur primarily through agricultural disruption of nitrogen homeostasis causing N2O to build up in the atmosphere. The enzyme responsible for N2O fixation within the geochemical nitrogen cycle is nitrous oxide reductase (N2OR), which catalyzes 2H+/2e- reduction of N2O to N2 and H2O at a tetranuclear active site, CuZ. In this review, the coordination chemistry of CuZ is reviewed. Recent advances in the understanding of biological CuZ coordination chemistry is discussed, as are significant breakthroughs in synthetic modeling of CuZ that have emerged in recent years. The latter topic includes both structurally faithful, synthetic [Cu4(µ4-S)] clusters that are able to reduce N2O, as well as dicopper motifs that shed light on reaction pathways available to the critical CuI-CuIV cluster edge of CuZ. Collectively, these advances in metalloenzyme studies and synthetic model systems provide meaningful knowledge about the physiologically relevant coordination chemistry of CuZ but also open new questions that will pose challenges in the near future.
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Affiliation(s)
- Suresh C. Rathnayaka
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St., Chicago, IL 60607, United States
| | - Neal P. Mankad
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St., Chicago, IL 60607, United States
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8
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Nahhas DR, Corrigan JF. Synthesis and characterization of ITr-protected group 11 metal trimethylsilylchalcogenolates. CAN J CHEM 2021. [DOI: 10.1139/cjc-2020-0261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This work describes the synthesis of group 11 metal trimethylsilylchalcogenolate complexes [(ITr)M-ESiMe3] stabilized by the large NHC ligand bis-1,3-tritylimidazole-2-ylidene (ITr). The thiolates and selenolates of Cu, Ag, and Au are accessed from either [(ITr)MOAc] (M = Cu, Ag) and E(SiMe3)2 or [(ITr)AuCl] and Li[ESiMe3] (E = S, Se). All complexes were characterized spectroscopically and, for the copper coordination compounds, via single crystal X-ray diffraction analysis.
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Affiliation(s)
- Dickron R. Nahhas
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B7, Canada; Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, ON N6A 3K7, Canada
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B7, Canada; Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, ON N6A 3K7, Canada
| | - John F. Corrigan
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B7, Canada; Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, ON N6A 3K7, Canada
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B7, Canada; Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, ON N6A 3K7, Canada
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9
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Drescher W, Borner C, Kleeberg C. Stability and decomposition of copper( i) boryl complexes: [(IDipp)Cu–Bneop], [(IDipp*)Cu–Bneop] and copper clusters. NEW J CHEM 2021. [DOI: 10.1039/d0nj03166f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis and characterisation of NHC copper boryl complexes [(NHC)Cu–Bneop] and their decomposition to low-valent copper clusters.
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Affiliation(s)
- Wiebke Drescher
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Corinna Borner
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Christian Kleeberg
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
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10
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Guschlbauer J, Vollgraff T, Xie X, Weigend F, Sundermeyer J. A Series of Homoleptic Linear Trimethylsilylchalcogenido Cuprates, Argentates and Aurates Cat[Me 3SiE-M-ESiMe 3] (M = Cu, Ag, Au; E = S, Se). Inorg Chem 2020; 59:17565-17572. [PMID: 33197182 DOI: 10.1021/acs.inorgchem.0c02808] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The syntheses and XRD molecular structures of a complete series of silylsulfido metalates Cat[M(SSiMe3)2] (M = Cu, Ag, Au) and corresponding silylselenido metalates Cat[M(SeSiMe3)2] (M = Cu, Ag, Au) comprising lattice stabilizing organic cations (Cat = Ph4P+ or PPN+) are reported. Much to our surprise these homoleptic cuprates, argentates, and aurates are stable enough to be isolated even in the absence of any strongly binding phosphines or N-heterocyclic carbenes as coligands. Their metal atoms are coordinated by two silylchalcogenido ligands in a linear fashion. The silyl moieties of all anions show an unexpected gauche conformation of the silyl substituents with respect to the central axis Si-[E-M-E]-Si in the solid state. The energetic preference for the gauche conformation is confirmed by quantum chemical calculations and amounts to about 2-6 kJ/mol, thus revealing a rather shallow potential mainly depending on electronic effects of the metal. Furthermore, 2D HMQC methods were applied to detect the otherwise nonobservable NMR shifts of the 29Si and 77Se nuclei of the silylselenido compounds. Preliminary investigations reveal that these thermally and protolytically labile chalcogenido metalates are valuable precursors for the precipitation of binary coinage metal chalcogenide nanoparticles from organic solution and for coinage metal cluster syntheses.
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Affiliation(s)
- Jannick Guschlbauer
- Fachbereich Chemie and Materials Science Center, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35043 Marburg, Germany
| | - Tobias Vollgraff
- Fachbereich Chemie and Materials Science Center, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35043 Marburg, Germany
| | - Xiulan Xie
- Fachbereich Chemie and Materials Science Center, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35043 Marburg, Germany
| | - Florian Weigend
- Fachbereich Chemie and Materials Science Center, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35043 Marburg, Germany.,Karlsruhe Institute of Technology (KIT), Institute of Nanotechnology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Jörg Sundermeyer
- Fachbereich Chemie and Materials Science Center, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35043 Marburg, Germany
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11
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Baeza Cinco MÁ, Hayton TW. Progress toward the Isolation of Late Metal Terminal Sulfides. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000600] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Miguel Á. Baeza Cinco
- Department of Chemistry and Biochemistry University of California Santa Barbara 93106 Santa Barbara CA USA
| | - Trevor W. Hayton
- Department of Chemistry and Biochemistry University of California Santa Barbara 93106 Santa Barbara CA USA
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12
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Matavos-Aramyan S, Soukhakian S, Jazebizadeh MH. Mononuclear Cu Complexes Based on Nitrogen Heterocyclic Carbene: A Comprehensive Review. Top Curr Chem (Cham) 2020; 378:39. [PMID: 32367181 DOI: 10.1007/s41061-020-00304-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 04/16/2020] [Indexed: 11/28/2022]
Abstract
During the last decade, organometallic, coordination, and catalytic chemistry of the three-dimensional metals such as copper (Cu) has been greatly affected by the emergence of nitrogen heterocyclic carbene (NHC) complexes. The NHCs, and in particular the mononuclear CuI-based ones, have been proven vastly useful in several applications such as in biosynthesis, catalysis, photochemistry, etc. This review tries to thoroughly describe a series of mononuclear CuI NHC complexes and their subcategories such as heteroleptics, and bidentate and tridentate heteroatom complexes, and give some detailed insights on their development, emergence, and applications. A brief outlook is also disclosed to enable other researchers to further develop a platform for future advances and studies in the field of CuI-based NHCs.
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Affiliation(s)
- Sina Matavos-Aramyan
- Research and Development Department, Division of Chemistry, Raazi Environmental Protection Foundation, Shiraz, Iran.
| | - Sadaf Soukhakian
- Research and Development Department, Division of Chemistry, Raazi Environmental Protection Foundation, Shiraz, Iran
| | - Mohammad Hossein Jazebizadeh
- Research and Development Department, Division of Chemistry, Raazi Environmental Protection Foundation, Shiraz, Iran
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13
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Rathnayaka SC, Hsu CW, Johnson BJ, Iniguez SJ, Mankad NP. Impact of Electronic and Steric Changes of Ligands on the Assembly, Stability, and Redox Activity of Cu 4(μ 4-S) Model Compounds of the Cu Z Active Site of Nitrous Oxide Reductase (N 2OR). Inorg Chem 2020; 59:6496-6507. [PMID: 32309936 DOI: 10.1021/acs.inorgchem.0c00564] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Model compounds have been widely utilized in understanding the structure and function of the unusual Cu4(μ4-S) active site (CuZ) of nitrous oxide reductase (N2OR). However, only a limited number of model compounds that mimic both structural and functional features of CuZ are available, limiting insights about CuZ that can be gained from model studies. Our aim has been to construct Cu4(μ4-S) clusters with tailored redox activity and chemical reactivity via modulating the ligand environment. Our synthetic approach uses dicopper(I) precursor complexes (Cu2L2) that assemble into a Cu4(μ4-S)L4 cluster with the addition of an appropriate sulfur source. Here, we summarize the features of the ligands L that stabilize precursor and Cu4(μ4-S) clusters, along with the alternative products that form with inappropriate ligands. The precursors are more likely to rearrange to Cu4(μ4-S) clusters when the Cu(I) ions are supported by bidentate ligands with 3-atom bridges, but steric and electronic features of the ligand also play crucial roles. Neutral phosphine donors have been found to stabilize Cu4(μ4-S) clusters in the 4Cu(I) oxidation state, while neutral nitrogen donors could not stabilize Cu4(μ4-S) clusters. Anionic formamidinate ligands have been found to stabilize Cu4(μ4-S) clusters in the 2Cu(I):2Cu(II) and 3Cu(I):1Cu(II) states, with both the formation of the dicopper(I) precursors and subsequent assembly of clusters being governed by the steric factor at the ortho positions of the N-aryl substituents. Phosphaamidinates, which combine a neutral phosphine donor and an anionic nitrogen donor in the same ligand, form multinuclear Cu(I) clusters unless the negative charge is valence-trapped on nitrogen, in which case the resulting dicopper precursor is unable to rearrange to a multinuclear cluster. Taken together, the results presented in this study provide design criteria for successful assembly of synthetic model clusters for the CuZ active site of N2OR, which should enable future insights into the chemical behavior of CuZ.
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Affiliation(s)
- Suresh C Rathnayaka
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
| | - Chia-Wei Hsu
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
| | - Brittany J Johnson
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
| | - Sarah J Iniguez
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
| | - Neal P Mankad
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, United States
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14
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Rathnayaka SC, Islam SM, DiMucci IM, MacMillan SN, Lancaster KM, Mankad NP. Probing the electronic and mechanistic roles of the μ 4-sulfur atom in a synthetic Cu Z model system. Chem Sci 2020; 11:3441-3447. [PMID: 34745516 PMCID: PMC8515425 DOI: 10.1039/c9sc06251c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 02/14/2020] [Indexed: 01/09/2023] Open
Abstract
Nitrous oxide (N2O) contributes significantly to ozone layer depletion and is a potent greenhouse agent, motivating interest in the chemical details of biological N2O fixation by nitrous oxide reductase (N2OR) during bacterial denitrification. In this study, we report a combined experimental/computational study of a synthetic [4Cu:1S] cluster supported by N-donor ligands that can be considered the closest structural and functional mimic of the CuZ catalytic site in N2OR reported to date. Quantitative N2 measurements during synthetic N2O reduction were used to determine reaction stoichiometry, which in turn was used as the basis for density functional theory (DFT) modeling of hypothetical reaction intermediates. The mechanism for N2O reduction emerging from this computational modeling involves cooperative activation of N2O across a Cu/S cluster edge. Direct interaction of the μ4-S ligand with the N2O substrate during coordination and N-O bond cleavage represents an unconventional mechanistic paradigm to be considered for the chemistry of CuZ and related metal-sulfur clusters. Consistent with hypothetical participation of the μ4-S unit in two-electron reduction of N2O, Cu K-edge and S K-edge X-ray absorption spectroscopy (XAS) reveal a high degree of participation by the μ4-S in redox changes, with approximately 21% S 3p contribution to the redox-active molecular orbital in the highly covalent [4Cu:1S] core, compared to approximately 14% Cu 3d contribution per copper. The XAS data included in this study represent the first spectroscopic interrogation of multiple redox levels of a [4Cu:1S] cluster and show high fidelity to the biological CuZ site.
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Affiliation(s)
- Suresh C Rathnayaka
- Department of Chemistry, University of Illinois at Chicago 845 W. Taylor St. Chicago IL 60607 USA
| | - Shahidul M Islam
- Department of Chemistry, University of Illinois at Chicago 845 W. Taylor St. Chicago IL 60607 USA
| | - Ida M DiMucci
- Department of Chemistry & Chemical Biology, Cornell University, Baker Laboratory Ithaca NY 14853 USA
| | - Samantha N MacMillan
- Department of Chemistry & Chemical Biology, Cornell University, Baker Laboratory Ithaca NY 14853 USA
| | - Kyle M Lancaster
- Department of Chemistry & Chemical Biology, Cornell University, Baker Laboratory Ithaca NY 14853 USA
| | - Neal P Mankad
- Department of Chemistry, University of Illinois at Chicago 845 W. Taylor St. Chicago IL 60607 USA
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15
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Pluth MD, Tonzetich ZJ. Hydrosulfide complexes of the transition elements: diverse roles in bioinorganic, cluster, coordination, and organometallic chemistry. Chem Soc Rev 2020; 49:4070-4134. [DOI: 10.1039/c9cs00570f] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Molecules containing transition metal hydrosulfide linkages are diverse, spanning a variety of elements, coordination environments, and redox states, and carrying out multiple roles across several fields of chemistry.
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Affiliation(s)
- Michael D. Pluth
- Department of Chemistry and Biochemistry
- Materials Science Institute
- Knight Campus for Accelerating Scientific Impact
- Institute of Molecular Biology
- University of Oregon
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16
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Hall JW, Seeberger F, Mahon MF, Whittlesey MK. (carbene)CuF Complexes Featuring Bulky Arduengo-Type, Ring-Expanded, and Cyclic (Alkyl)(amino)carbenes: Applications in Catalytic Aldehyde Allylation. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00772] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Jonathan W. Hall
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Felix Seeberger
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Mary F. Mahon
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
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17
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Guschlbauer J, Vollgraff T, Sundermeyer J. Homoleptic Group 13 Trimethylsilylchalcogenolato Metalates [M(ESiMe 3) 4] - (M = Ga, In; E = S, Se): Metastable Precursors for Low-Temperature Syntheses of Chalcogenide-Based Materials. Inorg Chem 2019; 58:15385-15392. [PMID: 31687815 DOI: 10.1021/acs.inorgchem.9b02453] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We communicate the synthesis and full characterization of so far unknown tetrakis(trimethylsilylsulfido) and -(trimethylsilylselenido) gallates and indates in form of their organic salts Cat+[M(ESiMe3)4]- (M = Ga, In; E = S, Se; Cat = dimethylpyrrolidinium (DMPyr+), Ph4P+, (dppe)2Cu+, (dmpe)2Cu+). These thermally metastable silylchalcogenolatometalates can act as modular precursors for an ionic-liquid- or organic-solution-based low-temperature synthesis of multinary metal chalcogenide materials such as the CIGS species Cu(InxGa1-x)(SySe1-y)2.
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Affiliation(s)
- Jannick Guschlbauer
- Department of Chemistry and Material Science Center , Philipps-Universität Marburg , Hans-Meerwein-Straße 4 , 35032 Marburg , Germany
| | - Tobias Vollgraff
- Department of Chemistry and Material Science Center , Philipps-Universität Marburg , Hans-Meerwein-Straße 4 , 35032 Marburg , Germany
| | - Jörg Sundermeyer
- Department of Chemistry and Material Science Center , Philipps-Universität Marburg , Hans-Meerwein-Straße 4 , 35032 Marburg , Germany
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18
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Szadkowska A, Pawłowski R, Zaorska E, Staszko S, Trzybiński D, Woźniak K. NHC copper complexes functionalized with sulfoxide and sulfone moieties. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4983] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Anna Szadkowska
- Biological and Chemical Research Centre, Department of ChemistryUniversity of Warsaw Żwirki i Wigury 101 02‐089 Warszawa Poland
| | - Robert Pawłowski
- Biological and Chemical Research Centre, Department of ChemistryUniversity of Warsaw Żwirki i Wigury 101 02‐089 Warszawa Poland
- Faculty of ChemistryUniversity of Technology Noakowskiego 3 00‐664 Warszawa Poland
| | - Ewelina Zaorska
- Biological and Chemical Research Centre, Department of ChemistryUniversity of Warsaw Żwirki i Wigury 101 02‐089 Warszawa Poland
| | - Sebastian Staszko
- Biological and Chemical Research Centre, Department of ChemistryUniversity of Warsaw Żwirki i Wigury 101 02‐089 Warszawa Poland
| | - Damian Trzybiński
- Biological and Chemical Research Centre, Department of ChemistryUniversity of Warsaw Żwirki i Wigury 101 02‐089 Warszawa Poland
| | - Krzysztof Woźniak
- Biological and Chemical Research Centre, Department of ChemistryUniversity of Warsaw Żwirki i Wigury 101 02‐089 Warszawa Poland
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19
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Jordan AJ, Walde RK, Schultz KM, Bacsa J, Sadighi JP. Nitrosonium Reactivity of (NHC)Copper(I) Sulfide Complexes. Inorg Chem 2019; 58:9592-9596. [DOI: 10.1021/acs.inorgchem.9b01676] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Abraham J. Jordan
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Rebecca K. Walde
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Kelly M. Schultz
- Murdock Hall, Department of Chemistry, Linfield College, McMinnville, Oregon 97128, United States
| | - John Bacsa
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
- X-ray Crystallography Center, Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| | - Joseph P. Sadighi
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
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20
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Tamargo RJI, Kim SH, Lee YR. Domino C−S/C−N Bond Formation Using Well‐Defined Copper‐Phosphine Complex Catalyst: Divergent Approach to 3‐Sulfenylated Indoles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900612] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Sung Hong Kim
- Analysis Research Division, Daegu Center Korea Basic Science Institute Daegu 41566 Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering Yeungnam University Gyeongsan 38541 Republic of Korea
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21
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22
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Danopoulos AA, Simler T, Braunstein P. N-Heterocyclic Carbene Complexes of Copper, Nickel, and Cobalt. Chem Rev 2019; 119:3730-3961. [PMID: 30843688 DOI: 10.1021/acs.chemrev.8b00505] [Citation(s) in RCA: 269] [Impact Index Per Article: 53.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The emergence of N-heterocyclic carbenes as ligands across the Periodic Table had an impact on various aspects of the coordination, organometallic, and catalytic chemistry of the 3d metals, including Cu, Ni, and Co, both from the fundamental viewpoint but also in applications, including catalysis, photophysics, bioorganometallic chemistry, materials, etc. In this review, the emergence, development, and state of the art in these three areas are described in detail.
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Affiliation(s)
- Andreas A Danopoulos
- Laboratory of Inorganic Chemistry , National and Kapodistrian University of Athens , Panepistimiopolis Zografou , Athens GR 15771 , Greece.,Université de Strasbourg, CNRS, Institut de Chimie UMR 7177 , Laboratoire de Chimie de Coordination , Strasbourg 67081 Cedex , France
| | - Thomas Simler
- Université de Strasbourg, CNRS, Institut de Chimie UMR 7177 , Laboratoire de Chimie de Coordination , Strasbourg 67081 Cedex , France
| | - Pierre Braunstein
- Université de Strasbourg, CNRS, Institut de Chimie UMR 7177 , Laboratoire de Chimie de Coordination , Strasbourg 67081 Cedex , France
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23
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Polgar AM, Zhang A, Mack F, Weigend F, Lebedkin S, Stillman MJ, Corrigan JF. Tuning the Metal/Chalcogen Composition in Copper(I)–Chalcogenide Clusters with Cyclic (Alkyl)(amino)carbene Ligands. Inorg Chem 2019; 58:3338-3348. [DOI: 10.1021/acs.inorgchem.8b03399] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Alexander M. Polgar
- Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Angel Zhang
- Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Fabian Mack
- Institut für Physikalische Chemie, Karlsruher Institut für Technologie, Kaiserstr. 12, 76131 Karlsruhe, Germany
| | - Florian Weigend
- Institut für Physikalische Chemie, Karlsruher Institut für Technologie, Kaiserstr. 12, 76131 Karlsruhe, Germany
- Institut für Nanotechnologie, Karlsruher Institut für Technologie, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Sergei Lebedkin
- Institut für Nanotechnologie, Karlsruher Institut für Technologie, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Martin J. Stillman
- Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - John F. Corrigan
- Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7, Canada
- Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, Ontario N6A 3K7, Canada
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24
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Cook BJ, Di Francesco GN, Ferreira RB, Lukens JT, Silberstein KE, Keegan BC, Catalano VJ, Lancaster KM, Shearer J, Murray LJ. Chalcogen Impact on Covalency within Molecular [Cu 3(μ 3-E)] 3+ Clusters (E = O, S, Se): A Synthetic, Spectroscopic, and Computational Study. Inorg Chem 2018; 57:11382-11392. [PMID: 30160943 PMCID: PMC6361137 DOI: 10.1021/acs.inorgchem.8b01000] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Reaction of the tricopper(I)-dinitrogen tris(β-diketiminate) cyclophane, Cu3(N2)L, with O-atom-transfer reagents or elemental Se affords the oxido-bridged tricopper complex Cu3(μ3-O)L (2) or the corresponding Cu3(μ3-Se)L (4), respectively. For 2 and 4, incorporation of the bridging chalcogen donor was supported by electrospray ionization mass spectrometry and K-edge X-ray absorption spectroscopy (XAS) data. Cu L2,3-edge X-ray absorption data quantify 49.5% Cu 3d character in the lowest unoccupied molecular orbital of 2, with Cu 3d participation decreasing to 33.0% in 4 and 40.8% in the related sulfide cluster Cu3(μ3-S)L (3). Multiedge XAS and UV/visible/near-IR spectra are employed to benchmark density functional theory calculations, which describe the copper-chalcogen interactions as highly covalent across the series of [Cu3(μ-E)]3+ clusters. This result highlights that the metal-ligand covalency is not reserved for more formally oxidized metal centers (i.e., CuIII + O2- vs CuII + O-) but rather is a significant contributor even at more typical ligand-field cases (i.e., Cu3II/II/I + E2-). This bonding is reminiscent of that observed in p-block elements rather than in early-transition-metal complexes.
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Affiliation(s)
- Brian J Cook
- Center for Catalysis and Florida Center for Heterocyclic Compounds, Department of Chemistry , University of Florida , Gainesville , Florida 32611-7200 , United States
| | - Gianna N Di Francesco
- Center for Catalysis and Florida Center for Heterocyclic Compounds, Department of Chemistry , University of Florida , Gainesville , Florida 32611-7200 , United States
| | - Ricardo B Ferreira
- Center for Catalysis and Florida Center for Heterocyclic Compounds, Department of Chemistry , University of Florida , Gainesville , Florida 32611-7200 , United States
| | - James T Lukens
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| | - Katharine E Silberstein
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| | - Brenna C Keegan
- Department of Chemistry , University of Nevada, Reno , Reno , Nevada 89557 , United States
| | - Vincent J Catalano
- Department of Chemistry , University of Nevada, Reno , Reno , Nevada 89557 , United States
| | - Kyle M Lancaster
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| | - Jason Shearer
- Department of Chemistry , University of Nevada, Reno , Reno , Nevada 89557 , United States
| | - Leslie J Murray
- Center for Catalysis and Florida Center for Heterocyclic Compounds, Department of Chemistry , University of Florida , Gainesville , Florida 32611-7200 , United States
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25
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Somasundaram V, Gunawardene PN, Polgar AM, Workentin MS, Corrigan JF. NHC Ligated Group 11 Metal-Arylthiolates Containing an Azide Functionality Amenable to “Click” Reaction Chemistry. Inorg Chem 2018; 57:11184-11192. [DOI: 10.1021/acs.inorgchem.8b01750] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Vaishnavi Somasundaram
- Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7 Canada
| | - Praveen N. Gunawardene
- Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7 Canada
| | - Alexander M. Polgar
- Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7 Canada
| | - Mark S. Workentin
- Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7 Canada
- Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, Ontario N6A 3K7 Canada
| | - John F. Corrigan
- Department of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7 Canada
- Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, Ontario N6A 3K7 Canada
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26
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Bagherzadeh S, Mankad NP. Oxidation of a [Cu 2S] complex by N 2O and CO 2: insights into a role of tetranuclearity in the Cu Z site of nitrous oxide reductase. Chem Commun (Camb) 2018; 54:1097-1100. [PMID: 29333559 PMCID: PMC5785442 DOI: 10.1039/c7cc09067f] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxidation of a [Cu2(μ-S)] complex by N2O or CO2 generated a [Cu2(μ-SO4)] product. In the presence of a sulfur trap, a [Cu2(μ-O)] species also formed from N2O. A [Cu2(μ-CS3)] species derived from CS2 modeled initial reaction intermediates. These observations indicate that one role of tetranuclearity in the CuZ catalytic site of nitrous oxide reductase is to protect the crucial S2- ligand from oxidation.
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Affiliation(s)
- Sharareh Bagherzadeh
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor St., Chicago, IL 60607, USA.
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27
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28
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Trose M, Nahra F, Poater A, Cordes DB, Slawin AMZ, Cavallo L, Cazin CSJ. Investigating the Structure and Reactivity of Azolyl-Based Copper(I)–NHC Complexes: The Role of the Anionic Ligand. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02737] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael Trose
- EaStCHEM
School of Chemistry, University of St. Andrews, St. Andrews, KY16 9ST, United Kingdom
| | - Fady Nahra
- Centre
for Sustainable Chemistry, Department of Chemistry, Ghent University, Krijgslaan 281-S3, B-9000 Ghent, Belgium
| | - Albert Poater
- King Abdullah University of Science & Technology, KAUST Catalysis Center (KCC), 23955-6900 Thuwal, Saudi Arabia
- Institut
de Química Computacional i Catàlisi and Departament
de Química, Universitat de Girona c/Maria Aurèlia Capmany 6, 17003 Girona, Spain
| | - David B. Cordes
- EaStCHEM
School of Chemistry, University of St. Andrews, St. Andrews, KY16 9ST, United Kingdom
| | - Alexandra M. Z. Slawin
- EaStCHEM
School of Chemistry, University of St. Andrews, St. Andrews, KY16 9ST, United Kingdom
| | - Luigi Cavallo
- King Abdullah University of Science & Technology, KAUST Catalysis Center (KCC), 23955-6900 Thuwal, Saudi Arabia
| | - Catherine S. J. Cazin
- EaStCHEM
School of Chemistry, University of St. Andrews, St. Andrews, KY16 9ST, United Kingdom
- Centre
for Sustainable Chemistry, Department of Chemistry, Ghent University, Krijgslaan 281-S3, B-9000 Ghent, Belgium
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29
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Polgar AM, Weigend F, Zhang A, Stillman MJ, Corrigan JF. A N-Heterocyclic Carbene-Stabilized Coinage Metal-Chalcogenide Framework with Tunable Optical Properties. J Am Chem Soc 2017; 139:14045-14048. [DOI: 10.1021/jacs.7b09025] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Alexander M. Polgar
- Department
of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Florian Weigend
- Institut
für Nanotechnologie, Karlsruher Institut für Technologie, Hermann-von Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Institut
für Physikalische Chemie, Karlsruher Institut für Technologie, Kaiserstr. 12, 76131 Karlsruhe, Germany
| | - Angel Zhang
- Department
of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Martin J. Stillman
- Department
of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - John F. Corrigan
- Department
of Chemistry, The University of Western Ontario, London, Ontario N6A 5B7, Canada
- Centre
for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, Ontario N6A 3K7, Canada
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30
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Shojaei S, Ghasemi Z, Shahrisa A. Cu(I)@Fe
3
O
4
nanoparticles supported on imidazolium‐based ionic liquid‐grafted cellulose: Green and efficient nanocatalyst for multicomponent synthesis of
N
‐sulfonylamidines and
N
‐sulfonylacrylamidines. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3788] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Salman Shojaei
- Department of Organic and Biochemistry, Faculty of ChemistryUniversity of Tabriz Tabriz 5166614766 Iran
| | - Zarrin Ghasemi
- Department of Organic and Biochemistry, Faculty of ChemistryUniversity of Tabriz Tabriz 5166614766 Iran
| | - Aziz Shahrisa
- Department of Organic and Biochemistry, Faculty of ChemistryUniversity of Tabriz Tabriz 5166614766 Iran
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31
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Ferrara SJ, Wang B, Haas E, Wright LeBlanc K, Mague JT, Donahue JP. Synthesis and Structures of [LCu(I)(SSiiPr3)] (L = triphos, carbene) and Related Compounds. Inorg Chem 2016; 55:9173-7. [DOI: 10.1021/acs.inorgchem.5b02811] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Skylar J. Ferrara
- Department of Chemistry, Tulane University, 6400 Freret Street, New Orleans, Louisiana 70118-5698, United States
| | - Bo Wang
- Department of Chemistry, Tulane University, 6400 Freret Street, New Orleans, Louisiana 70118-5698, United States
| | - Elaine Haas
- Department of Chemistry, Tulane University, 6400 Freret Street, New Orleans, Louisiana 70118-5698, United States
| | - Karry Wright LeBlanc
- Department of Chemistry, Tulane University, 6400 Freret Street, New Orleans, Louisiana 70118-5698, United States
| | - Joel T. Mague
- Department of Chemistry, Tulane University, 6400 Freret Street, New Orleans, Louisiana 70118-5698, United States
| | - James P. Donahue
- Department of Chemistry, Tulane University, 6400 Freret Street, New Orleans, Louisiana 70118-5698, United States
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32
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Khalili Najafabadi B, Corrigan JF. Silylphosphido complexes of gold(I) coordinated with NHC ligands. CAN J CHEM 2016. [DOI: 10.1139/cjc-2016-0096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The N-heterocyclic carbenes IPr (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) and iPr2-bimy (iPr2-bimy = 1,3-di-isopropylbenzimidazole-2-ylidene) were utilized as a basis for the preparation of four gold–silylphosphido complexes: [(IPr)AuP(Ph)SiMe3] (1), [(IPr)AuP(SiMe3)2] (2), [(iPr2-bimy)AuP(Ph)SiMe3] (3), and [(iPr2-bimy)AuP(SiMe3)2] (4). These complexes represent rare examples of terminally bonded Au–PR2 and the first examples where phosphorus retains reactive P-SiMe3 moieties. The reactivity of the P–Si bonds in 1 and 3 was explored via the addition of PhC(O)Cl. The products of these reactions were the formation of the phosphido-bridged [(IPrAu)2(μ-PPhC(O)Ph)][AuCl2] (5) and, in the case of the smaller N-heterocyclic carbenes, the tertiary phosphine PPh(C(O)Ph)2 (6) was isolated together with the known gold complex [(iPr2-bimy)AuCl]. Both reactions proceed via the elimination of ClSiMe3.
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Affiliation(s)
| | - John F. Corrigan
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B7, Canada
- Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, London, ON N6A 3K7, Canada
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