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Hajibabaei F, Movafagh SS, Salehzadeh S, Gable RW. Complexation of drug amifampridine with Cu(II), Zn(II) and Cd(II) ions, and its dimerization with the magic of Mn(II) salts. Potential anti-COVID-19 and anticancer activities. Dalton Trans 2024; 53:1066-1086. [PMID: 38099626 DOI: 10.1039/d3dt03281g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
The different behaviors of the drug amifampridine (AMP) against Mn(II), Cu(II), Zn(II) and Cd(II) metal ions, in the presence and absence of tris(2-aminoethyl)amine (tren) was studied. The results showed that AMP successfully coordinates with Cu(II), Zn(II) and Cd(II) metal ions, but interestingly it undergoes an unexpected dimerization through a C-H activation in the presence of different Mn(II) salts. A four-coordinate complex of zinc(II), [Zn(AMP)2Cl2] (1), a binuclear complex of cadmium(II), [Cd2(AMP)2Cl4] (2), three five-coordinate tren-based metal complexes, [Cu(tren)(AMP)](ClO4)2 (8), [Zn(tren)(AMP)]Cl2 (9) and [Cd(tren)(AMP)](ClO4)2 (10), three pyridinium salts, [AmpDimer]X (X = Cl-, NO3-, ClO4-; (3, 4 & 5)), and also two four-coordinate metal complexes with this pyridinium cation, [Zn(AmpDimer)Cl3] (6) and [Cd(AmpDimer)Cl3] (7), were synthesized. All new compounds were characterized by elemental analysis and IR spectroscopy, and by 1H- and 13C-NMR spectroscopy (for 1, 2, 3, 6, 7, 9 & 10) and by X-ray crystal structure determinations (for 1, 3, 4, 5, 7, 8 & 10). Theoretical studies showed that the [M(tren)(AMP)]2+ cations act as pH-sensitive drug carriers of AMP and release it upon protonation. The molecular docking studies on the interaction of AMP and the above complexes/salts with DNA and the proteins of SARS-CoV-2 showed that the synthesized complexes/salts have greater anticancer and anti-covid-19 activities than AMP alone.
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Affiliation(s)
- Farshid Hajibabaei
- Faculty of Chemistry and Petroleum Sciences, Bu-Ali Sina University, Hamedan, Iran.
| | | | - Sadegh Salehzadeh
- Faculty of Chemistry and Petroleum Sciences, Bu-Ali Sina University, Hamedan, Iran.
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Bonaldi L, Bortoluzzi M, Zacchini S, Pampaloni G, Marchetti F, Biancalana L. Triazine Chalcogenones from Thiocyanate or Selenocyanate Addition to Tetrazine Ligands in Ruthenium Arene Complexes. Inorg Chem 2023; 62:7814-7833. [PMID: 37167024 DOI: 10.1021/acs.inorgchem.3c00459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The chemistry of 1,2,4,5-tetrazines has attracted considerable interest both from a synthetic and applicative standpoint. Recently, regioselective reactions with alkynes and alkenes have been reported to be favored once the tetrazine ring is coordinated to Re(I), Ru(II), and Ir(III) centers. Aiming to further explore the effects of metal coordination, herein, we unveil the unexplored reactivity of tetrazines with chalcogenocyanate anions. Thus, ruthenium(II) tetrazine complexes, [RuCl{κ2N-3-(2-pyridyl)-6-R-1,2,4,5-tetrazine}(η6-arene)]+ (arene = p-cymene, R = H, [1a]+, R = Me, [1b]+, R = 2-pyridyl, [1c]+; arene = C6Me6, R = H, [1d]+, R = Me, [1e]+; PF6- salts), reacted quantitatively and in mild conditions with M(ECN) salts (M = Na, K, Bu4N; E = O, S, Se). The addition of thiocyanate or selenocyanate to the tetrazine ligand is regioselective and afforded, via N2 release, 1,2,4-triazine-5-chalcogenone heterocycles, the one with selenium being unprecedented. The novel ruthenium complexes [RuCl{κ2N-(2-pyridyl)}{triazine chalcogenone}(η6-arene)] 2a-e (sulfur), 3b, 3d, and 3e (selenium) were characterized by analytical (CHNS analyses, conductivity), spectroscopic (IR, multinuclear and two-dimensional (2D) NMR), and spectrometric (electrospray ionization mass spectrometry (ESI-MS)) techniques. According to density functional theory (DFT) calculations, the nucleophilic attack of SCN- on the tetrazine ring is kinetically driven. Compound 2b is selectively and reversibly mono-protonated on the triazine ring by HCl or other strong acids, affording a single tautomer. When reactions of chalcogenocyanates were performed on the 2,2'-bipyridine (bpy) complex [RuCl(bpy)(η6-p-cymene)]+, the chloride substitution products [Ru(ECN)(bpy)(η6-p-cymene)]+ (E = O, [4]+; E = S, [5]+; E = Se, [6]+) were obtained in 82-90% yields (PF6- salts). Combined spectroscopic data (IR, 1H/13C/77Se NMR) was revealed to be a useful tool to study the linkage isomerism of the chalcogenocyanate ligand in [4-6]+.
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Affiliation(s)
- Lorenzo Bonaldi
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Marco Bortoluzzi
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, I-30175 Mestre, Venezia, Italy
| | - Stefano Zacchini
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale del Risorgimento 4, I-40136 Bologna, Italy
| | - Guido Pampaloni
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Fabio Marchetti
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Lorenzo Biancalana
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
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Gonzálvez MA, Williams CM, Martínez M, Bernhardt PV. Kinetico-Mechanistic Studies on a Reactive Organocopper(II) Complex: Cu-C Bond Homolysis versus Heterolysis. Inorg Chem 2023; 62:4662-4671. [PMID: 36877141 DOI: 10.1021/acs.inorgchem.3c00127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
Organocopper(II) reagents are an unexplored frontier of copper catalysis. Despite being proposed as reactive intermediates, an understanding of the stability and reactivity of the CuII-C bond has remained elusive. Two main pathways can be considered for the cleavage mode of a CuII-C bond: homolysis and heterolysis. We recently showed how organocopper(II) reagents can react with alkenes via radical addition, a homolytic pathway. In this work, the decomposition of the complex [CuIILR]+ [L = tris(2- dimethylaminoethyl)amine, Me6tren, R = NCCH2-] in the absence and presence of an initiator (RX, X = Cl, Br) was evaluated. When no initiator was present, first-order CuII-C bond homolysis occurred producing [CuIL]+ and succinonitrile, via radical termination. When an excess of the initiator was present, a subsequent formation of [CuIILX]+ via a second-order reaction was found, which results from the reaction of [CuIL]+ with RX following homolysis. However, when Brønsted acids (R'-OH: R' = H, Me, Ph, PhCO) were present, heterolytic cleavage of the CuII-C bond produced [CuIIL(OR')]+ and MeCN. Kinetic studies were undertaken to obtain the thermal (ΔH⧧, ΔS⧧) and pressure (ΔV⧧) activation parameters and deuterium kinetic isotopic effects, which provided an understanding of the strength of the CuII-C bond and the nature of the transition state for the reactions involved. These results reveal possible reaction pathways for organocopper(II) complexes relevant to their applications as catalysts in C-C bond forming reactions.
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Affiliation(s)
- Miguel A Gonzálvez
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane 4072, Australia
| | - Craig M Williams
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane 4072, Australia
| | - Manuel Martínez
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, Barcelona 08028, Spain.,Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, Barcelona 08028, Spain
| | - Paul V Bernhardt
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane 4072, Australia
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Stevens MP, Spray E, Vitorica-Yrezabal IJ, Singh K, Timmermann VM, Sotorrios L, Ortu F. Structural Investigation of Magnesium Complexes Supported by a Thiopyridyl Scorpionate Ligand. Molecules 2022; 27:molecules27144564. [PMID: 35889437 PMCID: PMC9318590 DOI: 10.3390/molecules27144564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/12/2022] [Accepted: 07/14/2022] [Indexed: 12/03/2022] Open
Abstract
Herein, we report the synthesis of a series of heteroleptic magnesium complexes stabilized with the scorpionate ligand tris(2-pyridylthio)methanide (Tptm). The compounds of the general formula [Mg(Tptm)(X)] (1-X; X = Cl, Br, I) were obtained via protonolysis reaction between the proligand and selected Grignard reagents. Attempts to isolate the potassium derivative K(Tptm) lead to decomposition of Tptm and formation of the alkene (C5H4N-S)2C=C(C5H4N-S)2, and this degradation was also modelled using DFT methods. Compound 1-I was treated with K(CH2Ph), affording the degradation product [Mg(Bptm)2] (2; Bptm = {CH(S-C5NH3)2}−). We analyzed and quantified the steric properties of the Tptm ligand using the structural information of the compounds obtained in this study paired with buried volume calculations, also adding the structural data of HTptm and its CF3-substituted congener (HTptmCF3). These studies highlight the highly flexible nature of this ligand scaffold and its ability to stabilize various coordination motifs and geometries, which is a highly desirable feature in the design of novel organometallic reagents and catalysts.
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Affiliation(s)
- Matthew P. Stevens
- School of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, UK; (M.P.S.); (E.S.); (K.S.); (V.M.T.)
| | - Emily Spray
- School of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, UK; (M.P.S.); (E.S.); (K.S.); (V.M.T.)
| | | | - Kuldip Singh
- School of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, UK; (M.P.S.); (E.S.); (K.S.); (V.M.T.)
| | - Vanessa M. Timmermann
- School of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, UK; (M.P.S.); (E.S.); (K.S.); (V.M.T.)
| | - Lia Sotorrios
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK
- Correspondence: (L.S.); (F.O.); Tel.: +44-(0)116-294-4670 (F.O.)
| | - Fabrizio Ortu
- School of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, UK; (M.P.S.); (E.S.); (K.S.); (V.M.T.)
- Correspondence: (L.S.); (F.O.); Tel.: +44-(0)116-294-4670 (F.O.)
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5
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Reactivity between late first-row transition metal halides and the ligand bis(2-pyridylmethyl)disulfide: vibrantly-colored compounds with variable molecular geometries influenced by metal-sulfur interactions. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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de Campos NR, Simosono CA, Landre Rosa IM, da Silva RMR, Doriguetto AC, do Pim WD, Gomes Simões TR, Valdo AKSM, Martins FT, Sarmiento CV, Nunes WC, Guedes GP, Pedroso EF, Pereira CLM, Stumpf HO, Lloret F, Julve M, Marinho MV. Building-up host-guest helicate motifs and chains: a magneto-structural study of new field-induced cobalt-based single-ion magnets. Dalton Trans 2021; 50:10707-10728. [PMID: 34308946 DOI: 10.1039/d1dt01693h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we present the synthetic pathway, a refined structural description, complete solid-state characterization and the magnetic properties of four new cobalt(ii) compounds of formulas [Co(H2O)6][Co2(H2mpba)3]·2H2O·0.5dmso (1), [Co(H2O)6][Co2(H2mpba)3]·3H2O·0.5dpss (2), [Co2(H2mpba)2(H2O)4]n·4nH2O (3), and [Co2(H2mpba)2(CH3OH)2(H2O)2]n·0.5nH2O·2ndpss (4) [dpss = 2,2'-dipyridyldisulfide and H4mpba = 1,3-phenylenebis(oxamic) acid], where 2 and 4 were obtained from [Co(dpss)Cl2] (Pre-I) as the source of cobalt(ii). All four compounds are air-stable and were prepared under ambient conditions. 1 and 2 were obtained from a slow diffusion method [cobalt(ii) : H2mpba2- molar ratio used 1 : 1] and their structures are made up of [Co2(H2mpba)3]2- anionic helicate units and [Co(H2O)6]2+ cations, exhibiting supramolecular three-dimensional structures. Interestingly, a supramolecular honeycomb network between the helicate units interacting with each other through R22(10) type hydrogen bonds occurs in 2 hosting one co-crystallized dpss molecule. On the other hand, for the first time, linear (3) and zigzag (4) cobalt(ii) chains were isolated by slow evaporation of stirred solutions of mixed solvents with cobalt(ii) : H2mpba2- in 1 : 2 molar ratio at room temperature. Magnetic measurements of Pre-I revealed a quasi magnetically isolated S = 3/2 spin state with a significant second-order spin-orbit contribution as expected for tetrahedrally coordinated cobalt(ii) ions. The analysis of the variable temperature static (dc) magnetic susceptibility data through first- (1 and 3) and second-order spin-orbit coupling models (2 and 4) reveals the presence of magnetically non-interacting high-spin cobalt(ii) ions with easy-axis (1 and 4)/easy-plane magnetic anisotropies (2 and 4) with low rhombic distortions. Dynamic (ac) magnetic measurements for Pre-I and 1-4 below 8.0 K show that they are examples of field-induced Single-Ion Magnets (SIMs).
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Affiliation(s)
- Nathália R de Campos
- Instituto de Química, Universidade Federal de Alfenas, Campus Santa Clara, Alfenas, MG 37133-840, Brazil.
| | - Cintia A Simosono
- Instituto de Química, Universidade Federal de Alfenas, Campus Santa Clara, Alfenas, MG 37133-840, Brazil.
| | - Iara M Landre Rosa
- Instituto de Química, Universidade Federal de Alfenas, Campus Santa Clara, Alfenas, MG 37133-840, Brazil.
| | - Rafaela M R da Silva
- Instituto de Química, Universidade Federal de Alfenas, Campus Santa Clara, Alfenas, MG 37133-840, Brazil.
| | - Antônio C Doriguetto
- Instituto de Química, Universidade Federal de Alfenas, Campus Santa Clara, Alfenas, MG 37133-840, Brazil.
| | - Walace D do Pim
- Departamento de Química, Centro Federal de Educação Tecnológica de Minas Gerais, Belo Horizonte, MG 30421-169, Brazil
| | | | - Ana Karoline S M Valdo
- Instituto de Física, Universidade Federal de Goiás, Campus Samambaia, Goiânia, GO 74690-900, Brazil
| | - Felipe T Martins
- Instituto de Física, Universidade Federal de Goiás, Campus Samambaia, Goiânia, GO 74690-900, Brazil
| | - Charlie V Sarmiento
- Instituto de Física, Universidade Federal Fluminense, Niterói, Rio de Janeiro, RJ 24210-346, Brazil
| | - Wallace C Nunes
- Instituto de Física, Universidade Federal Fluminense, Niterói, Rio de Janeiro, RJ 24210-346, Brazil
| | - Guilherme P Guedes
- Instituto de Química, Universidade Federal Fluminense, Niterói, Rio de Janeiro, 24020-141, Brazil
| | - Emerson F Pedroso
- Departamento de Química, Centro Federal de Educação Tecnológica de Minas Gerais, Belo Horizonte, MG 30421-169, Brazil
| | - Cynthia L M Pereira
- Departamento de Química-ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Humberto O Stumpf
- Departamento de Química-ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Francesc Lloret
- Departament de Química Inorgànica/Instituto de Ciencia Molecular (ICMol), Universitat de València, C/catedrático José Beltrán 2, 46980 Paterna, València, Spain.
| | - Miguel Julve
- Departament de Química Inorgànica/Instituto de Ciencia Molecular (ICMol), Universitat de València, C/catedrático José Beltrán 2, 46980 Paterna, València, Spain.
| | - Maria Vanda Marinho
- Instituto de Química, Universidade Federal de Alfenas, Campus Santa Clara, Alfenas, MG 37133-840, Brazil.
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Chahrour T, Castonguay A, Oguadinma PO, Schaper F, Zargarian D. Reactions of a pincer proligand with copper iodide: bridging instead of C–H metalation. CAN J CHEM 2020. [DOI: 10.1139/cjc-2020-0058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Various precursors of divalent copper have been treated with the meta-disubstituted phenylene-based proligand POC(H)OP (1,3-(i-Pr2PO)2C6H4) with the objective of preparing classical pincer complexes (POCOP)CuX. However, in no case was such species obtained, presumably owing to the difficult C–H metallation step. Analogous reactions of monovalent precursors were also unsuccessful, whereas reaction of POC(H)OP with CuI under different conditions gave the non-metallated adducts {(μ, κP, [Formula: see text]-POC(H)OP)Cu(μ-Ι)}2, 1, {(μ, κP, [Formula: see text]-POC(H)OP)Cu2(μ-Ι)2(DMAP)2}, 2 (DMAP = 4-dimethylaminopyridine), and {(μ, κP, [Formula: see text]-POC(H)OP)Cu2(μ3-Ι)2}2, 3. Treating 1 with DMAP gave the adduct 2, whereas 3 could be obtained by treating 1 with BuLi or by sublimation of 1. The solid state structures of these complexes revealed the tetrahedral geometry that might be anticipated for the d10 Cu(I) centers, in addition to fairly close I–H distances; on the other hand, no C–H interaction (agostic or otherwise) was observed with the Cu centers in any of these structures. The unsuccessful metallation of the C(2)–H moiety is thought to be a result of the strong preference of monovalent copper center to form bridging interactions with iodide and the POC(H)OP ligand; this appears to prevent the approach of the central carbon of the ligand to the Cu centers.
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Affiliation(s)
- Taghrid Chahrour
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Annie Castonguay
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Paul O. Oguadinma
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Frank Schaper
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Davit Zargarian
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
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8
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Halder P, SantaLucia DJ, Park SV, Berry JF. From Pincer to Paddlewheel: C-H and C-S Bond Activation at Bis(2-pyridylthio)methane by Palladium(II). Inorg Chem 2019; 58:2270-2274. [PMID: 30698431 DOI: 10.1021/acs.inorgchem.8b03568] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The bis(2-pyridylthio)methanidopalladium(II) pincer complex (1), containing a Pd-C bond, was obtained from the reaction of bis(2-pyridylthio)methane (H2L) with palladium(II) acetate in toluene under reflux. When palladium(II) trifluoroacetate was used, H2L reacted to generate the tetrakis(pyridine-2-thiol)palladium(II) complex (2). Complex 2 was converted to a heterobimetallic palladium(II)-iron(II) paddlewheel complex (3) upon treatment with iron(II) triflate in the presence of a base in acetonitrile at room temperature.
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Affiliation(s)
- Partha Halder
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Daniel J SantaLucia
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Sungho V Park
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - John F Berry
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
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Ribelli TG, Matyjaszewski K, Poli R. The interaction of carbon-centered radicals with copper(I) and copper(II) complexes*. J COORD CHEM 2018. [DOI: 10.1080/00958972.2018.1490416] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Thomas G. Ribelli
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, USA
| | | | - Rinaldo Poli
- LCC-CNRS, Université de Toulouse, CNRS, INPT, Toulouse, France
- Institut Universitaire de France, Paris, France
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10
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Hardouin Duparc V, Bano GL, Schaper F. Chan–Evans–Lam Couplings with Copper Iminoarylsulfonate Complexes: Scope and Mechanism. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01881] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Valérie Hardouin Duparc
- Centre in Green Chemistry and Catalysis, Department of Chemistry, Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, Québec H3T 3J7, Canada
| | - Guillaume L. Bano
- Centre in Green Chemistry and Catalysis, Department of Chemistry, Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, Québec H3T 3J7, Canada
| | - Frank Schaper
- Centre in Green Chemistry and Catalysis, Department of Chemistry, Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, Québec H3T 3J7, Canada
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Ruccolo S, Rauch M, Parkin G. Synthesis and Structural Characterization of Tris(isopropylbenzimidazol-2-ylthio)methyl Zinc Complexes, [TitmPriBenz]ZnX: Modulation of Transannular Zn–C Interactions. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00158] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Serge Ruccolo
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Michael Rauch
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Gerard Parkin
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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12
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Slivarichova M, Correa da Costa R, Nunn J, Ahmad R, Haddow MF, Sparkes HA, Gray T, Owen GR. Two synthetic routes to bis(1-methyl-imidazole-2-thione)methane and bis(1-benzyl-imidazole-2-thione)methane complexes including sulfur atom insertion into copper−NHC bonds. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.05.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Tüchler M, Holler S, Huber E, Fischer S, Boese AD, Belaj F, Mösch-Zanetti NC. Synthesis and Characterization of a Thiopyridazinylmethane-Based Scorpionate Ligand: Formation of Zinc Complexes and Rearrangement Reaction. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00568] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Michael Tüchler
- Institute
of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse
1, 8010 Graz, Austria
| | - Stefan Holler
- Institute
of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse
1, 8010 Graz, Austria
| | - Elke Huber
- Institute
of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse
1, 8010 Graz, Austria
| | - Susanne Fischer
- Institute
of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse
1, 8010 Graz, Austria
- Institute
of Chemistry, Physical and Theoretical Chemistry, University of Graz, Heinrichstrasse 28, 8010 Graz, Austria
| | - A. Daniel Boese
- Institute
of Chemistry, Physical and Theoretical Chemistry, University of Graz, Heinrichstrasse 28, 8010 Graz, Austria
| | - Ferdinand Belaj
- Institute
of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse
1, 8010 Graz, Austria
| | - Nadia C. Mösch-Zanetti
- Institute
of Chemistry, Inorganic Chemistry, University of Graz, Schubertstrasse
1, 8010 Graz, Austria
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14
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Tüchler M, Holler S, Schachner JA, Belaj F, Mösch-Zanetti NC. Unusual C-N Coupling Reactivity of Thiopyridazines: Efficient Synthesis of Iron Diorganotrisulfide Complexes. Inorg Chem 2017; 56:8159-8165. [PMID: 28654286 DOI: 10.1021/acs.inorgchem.7b00865] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The reaction of iron(II) triflate with 6-tert-butyl-3-thiopyridazine (PnH) and 4-methyl-6-tert-butyl-3-thiopyridazine (MePnH) respectively led to iron bis(diorganotrisulfide) complexes [Fe(RPnS3PnR)2](OTf)2 [R = H (1a) and Me (2a)]. The corresponding perchlorate complexes were prepared by using the iron(II) chloride precursor and the subsequent addition of 2 equiv of NaClO4, giving [Fe(RPnS3PnR)2](ClO4)2 [R = H (1b) and Me (2b)]. The compounds were fully characterized including single-crystal X-ray diffraction analysis. All four compounds exhibit nearly perfect octahedral geometries with an iron center coordinated by four nitrogen atoms from two RPnS3PnR ligands and by two sulfur atoms of the central atom in the S3 unit. The diamagnetic complexes exhibit unusually high redox potentials for the Fe2+/3+ couple at E1/2 = 1.15 V (for 1a and 1b) and 1.08 V (for 2a and 2b) versus Fc/Fc+, respectively, as determined by cyclic voltammetry. Furthermore, the source of the extra sulfur atom within the S3 unit was elucidated by isolation of C-N-coupled pyridazinylthiopyridazine products.
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Affiliation(s)
- Michael Tüchler
- Institute of Chemistry, University of Graz , Schubertstrasse 1, 8010 Graz, Austria
| | - Stefan Holler
- Institute of Chemistry, University of Graz , Schubertstrasse 1, 8010 Graz, Austria
| | - Jörg A Schachner
- Institute of Chemistry, University of Graz , Schubertstrasse 1, 8010 Graz, Austria
| | - Ferdinand Belaj
- Institute of Chemistry, University of Graz , Schubertstrasse 1, 8010 Graz, Austria
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15
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Ruccolo S, Rauch M, Parkin G. Tris[(1-isopropylbenzimidazol-2-yl)dimethylsilyl]methyl metal complexes, [Tism PriBenz]M: a new class of metallacarbatranes, isomerization to a tris(N-heterocyclic carbene) derivative, and evidence for an inverted ligand field. Chem Sci 2017; 8:4465-4474. [PMID: 30155219 PMCID: PMC6100236 DOI: 10.1039/c7sc00499k] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 03/27/2017] [Indexed: 11/22/2022] Open
Abstract
The tris[(1-isopropylbenzimidazol-2-yl)dimethylsilyl]methyl ligand, [TismPriBenz], has been employed to form carbatrane compounds of both the main group metals and transition metals, namely [TismPriBenz]Li, [TismPriBenz]MgMe, [TismPriBenz]Cu and [TismPriBenz]NiBr. In addition to the formation of atranes, a zinc compound that exhibits κ3-coordination, namely [κ3-TismPriBenz]ZnMe, has also been obtained. Furthermore, the [TismPriBenz] ligand may undergo a thermally induced rearrangement to afford a novel tripodal tris(N-heterocyclic carbene) variant, as shown by the conversion of [TismPriBenz]Cu to [κ4-C4-TismPriBenz*]Cu. The transannular M-C bond lengths in the atrane compounds are 0.19-0.32 Å longer than the sum of the respective covalent radii, which is consistent with a bonding description that features a formally zwitterionic component. Interestingly, computational studies demonstrate that the Cu-Catrane interactions in [TismPriBenz]Cu and [κ4-C4-TismPriBenz*]Cu are characterized by an "inverted ligand field", in which the occupied antibonding orbitals are localized more on carbon than on copper.
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Affiliation(s)
- Serge Ruccolo
- Department of Chemistry , Columbia University , New York 10027 , USA .
| | - Michael Rauch
- Department of Chemistry , Columbia University , New York 10027 , USA .
| | - Gerard Parkin
- Department of Chemistry , Columbia University , New York 10027 , USA .
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16
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Zerk TJ, Bernhardt PV. Organo-Copper(II) Complexes as Products of Radical Atom Transfer. Inorg Chem 2017; 56:5784-5792. [DOI: 10.1021/acs.inorgchem.7b00402] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Timothy J. Zerk
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane 4072, Australia
| | - Paul V. Bernhardt
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane 4072, Australia
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17
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Li H, Aquino AJA, Cordes DB, Hase WL, Krempner C. Electronic nature of zwitterionic alkali metal methanides, silanides and germanides - a combined experimental and computational approach. Chem Sci 2017; 8:1316-1328. [PMID: 28451273 PMCID: PMC5360169 DOI: 10.1039/c6sc02390h] [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: 05/31/2016] [Accepted: 10/06/2016] [Indexed: 11/24/2022] Open
Abstract
Zwitterionic group 14 complexes of the alkali metals of formula [C(SiMe2OCH2CH2OMe)3M], (M-1), [Si(SiMe2OCH2CH2OMe)3M], (M-2), [Ge(SiMe2OCH2CH2OMe)3M], (M-3), where M = Li, Na or K, have been prepared, structurally characterized and their electronic nature was investigated by computational methods. Zwitterions M-2 and M-3 were synthesized via reactions of [Si(SiMe2OCH2CH2OMe)4] (2) and [Ge(SiMe2OCH2CH2OMe)4] (3) with MOBu t (M = Li, Na or K), resp., in almost quantitative yields, while M-1 were prepared from deprotonation of [HC(SiMe2OCH2CH2OMe)3] (1) with LiBu t , NaCH2Ph and KCH2Ph, resp. X-ray crystallographic studies and DFT calculations in the gas-phase, including calculations of the NPA charges confirm the zwitterionic nature of these compounds, with the alkali metal cations being rigidly locked and charge separated from the anion by the internal OCH2CH2OMe donor groups. Natural bond orbital (NBO) analysis and the second order perturbation theory analysis of the NBOs reveal significant hyperconjugative interactions in M-1-M-3, primarily between the lone pair and the antibonding Si-O orbitals, the extent of which decreases in the order M-1 > M-2 > M-3. The experimental basicities and the calculated gas-phase basicities of M-1-M-3 reveal the zwitterionic alkali metal methanides M-1 to be significantly stronger bases than the analogous silanides M-2 and germanium M-3.
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Affiliation(s)
- H Li
- Texas Tech University , Department of Chemistry and Biochemistry , Box 41061 , Lubbock , Texas 79409-1061 , USA .
| | - A J A Aquino
- Texas Tech University , Department of Chemistry and Biochemistry , Box 41061 , Lubbock , Texas 79409-1061 , USA .
| | - D B Cordes
- Texas Tech University , Department of Chemistry and Biochemistry , Box 41061 , Lubbock , Texas 79409-1061 , USA .
| | - W L Hase
- Texas Tech University , Department of Chemistry and Biochemistry , Box 41061 , Lubbock , Texas 79409-1061 , USA .
| | - C Krempner
- Texas Tech University , Department of Chemistry and Biochemistry , Box 41061 , Lubbock , Texas 79409-1061 , USA .
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18
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Ribelli TG, Wahidur Rahaman SM, Daran JC, Krys P, Matyjaszewski K, Poli R. Effect of Ligand Structure on the CuII–R OMRP Dormant Species and Its Consequences for Catalytic Radical Termination in ATRP. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01334] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Thomas G. Ribelli
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - S. M. Wahidur Rahaman
- CNRS,
LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS,
INPT, 205 Route de Narbonne, BP 44099, F-31077 Toulouse, Cedex 4, France
| | - Jean-Claude Daran
- CNRS,
LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS,
INPT, 205 Route de Narbonne, BP 44099, F-31077 Toulouse, Cedex 4, France
| | - Pawel Krys
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Krzysztof Matyjaszewski
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Rinaldo Poli
- CNRS,
LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS,
INPT, 205 Route de Narbonne, BP 44099, F-31077 Toulouse, Cedex 4, France
- Institut
Universitaire
de France, 1, rue Descartes, 75231 Paris, Cedex 05, France
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19
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Voitekhovich SV, Grigoriev YV, Lyakhov AS, Ivashkevich LS, Ivashkevich OA. The first organocopper tetrazole derivative: synthesis and characterization. Dalton Trans 2016; 45:13406-14. [PMID: 27484443 DOI: 10.1039/c6dt02306a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1-(5-Amino-3-azapentyl)tetrazole dihydrochloride (HL·2HCl) was prepared by heterocyclization of diethylenetriamine with triethyl orthoformate and sodium azide followed by treatment with potassium carbonate and hydrochloric acid. The reaction of CuCl2, HL·2HCl and triethylamine (NEt3) in a molar ratio of 1 : 1 : 3 in water was found to generate a novel organometallic tetrazole derivative Cu2L2Cl2. This compound is present as a binuclear centrosymmetric molecular complex, in which C-deprotonated tetrazole L acts as a chelating ligand via the two amino N and tetrazole ring C coordination sites and the two copper atoms are linked together through two tetrazole ring N(4)-C(5) bridges. This complex is the first organocopper tetrazole derivative. When the molar ratio of the reagents in the abovementioned reaction was changed to 1 : 2 : 2, the complex Cu(HL)2Cl2 was formed along with Cu2L2Cl2. Pure Cu(HL)2Cl2 was isolated after reaction of the reagents in a molar ratio of 1 : 3 : 6. The complex Cu(HL)2Cl2 is present as a mononuclear molecular complex, with a chelating coordination mode of HL via the two amino N atoms only. Both complexes as well as HL·2HCl were characterized by single-crystal X-ray analysis.
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Affiliation(s)
- Sergei V Voitekhovich
- Research Institute for Physical Chemical Problems, Belarusian State University, Leningradskaya str. 14, 220006 Minsk, Belarus.
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20
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He H, Altomare D, Ozer U, Xu H, Creek K, Chen H, Xu P. Cancer cell-selective killing polymer/copper combination. Biomater Sci 2016; 4:115-20. [PMID: 26568413 PMCID: PMC4679545 DOI: 10.1039/c5bm00325c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Chemotherapy has been adopted for cancer treatment for decades. However, its efficacy and safety are frequently compromised by the multidrug-resistance of cancer cells and the poor cancer cell selectivity of anticancer drugs. Hereby, we report a combination of a pyridine-2-thiol containing polymer and copper which can effectively kill a wide spectrum of cancer cells, including drug resistant cancer cells, while sparing normal cells. The polymer nanoparticle enters cells via an exofacial thiol facilitated route, and releases active pyridine-2-thiol with the help of intracellularly elevated glutathione (GSH). Due to their high GSH level, cancer cells are more vulnerable to the polymer/copper combination. In addition, RNA microarray analysis revealed that the treatment can reverse cancer cells' upregulated oncogenes (CIRBP and STMN1) and downregulated tumor suppressor genes (CDKN1C and GADD45B) to further enhance the selectivity for cancer cells.
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Affiliation(s)
- Huacheng He
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina, Columbia, SC 29208, USA.
| | - Diego Altomare
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina, Columbia, SC 29208, USA.
| | - Ufuk Ozer
- Department of Biological Sciences, University of South Carolina, Columbia, SC 29208, USA
| | - Hanwen Xu
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina, Columbia, SC 29208, USA.
| | - Kim Creek
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina, Columbia, SC 29208, USA.
| | - Hexin Chen
- Department of Biological Sciences, University of South Carolina, Columbia, SC 29208, USA
| | - Peisheng Xu
- Department of Drug Discovery and Biomedical Sciences, University of South Carolina, Columbia, SC 29208, USA.
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21
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Zhang H, Yao B, Zhao L, Wang DX, Xu BQ, Wang MX. Direct Synthesis of High-Valent Aryl–Cu(II) and Aryl–Cu(III) Compounds: Mechanistic Insight into Arene C–H Bond Metalation. J Am Chem Soc 2014; 136:6326-32. [DOI: 10.1021/ja412615h] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Hu Zhang
- Key
Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology
(Ministry of Education), Tsinghua University, Beijing 100084, China
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Bo Yao
- Key
Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology
(Ministry of Education), Tsinghua University, Beijing 100084, China
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Liang Zhao
- Key
Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology
(Ministry of Education), Tsinghua University, Beijing 100084, China
| | - De-Xian Wang
- Beijing
National Laboratory for Molecular Sciences, CAS Key Laboratory of
Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Bo-Qing Xu
- Key
Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology
(Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Mei-Xiang Wang
- Key
Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology
(Ministry of Education), Tsinghua University, Beijing 100084, China
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22
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Lobana TS, Sultana R, Butcher RJ, Castineiras A, Akitsu T, Fernandez FJ, Vega MC. Chemistry of Heterocyclic 2-Thiones: In Situ Generation of 3-(2-Thiazolin-2-yl)thiazolidine-2-thione and 1,1′-Dimethyl-2,2′-diimidazolyl Sulfide and Their Coordination to CuIand CuII. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300676] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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23
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Tehranchi J, Donoghue PJ, Cramer CJ, Tolman WB. Reactivity of (Dicarboxamide)M(II)-OH (M = Cu, Ni) Complexes: Reaction with Acetonitrile to Yield M(II)-Cyanomethides. Eur J Inorg Chem 2013; 2013. [PMID: 24415908 DOI: 10.1002/ejic.201300328] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The complexes (Bu4N)(LMeM(II)-OH) (LMe = 2,6-dimethylphenyl-substituted pyridine(dicarboxamide); M = Cu or Ni) react with CH3CN to yield (Bu4N)(LMeM-CH2CN), novel cyanomethide complexes that were fully characterized, including by X-ray crystallography. These conversions contrast with the usual reactions of metal-hydroxide complexes with nitriles, which typically involve attack at the nitrile carbon and formation of amides or carboxylic acids. Kinetic studies (M = Cu) revealed a first-order dependence on the complex and a kinetic isotope effect (k(CH3CN)/k(CD3CN) of 4. Various mechanisms involving either intra- or intermolecular deprotonation steps are proposed. In addition, (Bu4N)(LMeCu-OH) was oxidized by Fc+PF6- to a proposed Cu(III) complex LMeCuOH at low temperature, and comparisons of its stability and reactivity with dihydroanthracene were drawn to its previously described congener having isopropyl substituents on the phenyl rings of the supporting ligand. The cyanomethide complex (Bu4N)(LMeCu(CH2CN)) also was reversibly oxidized both electrochemically (E1/2 = -0.345 V vs. Fc/Fc+) and chemically (Fc+PF6-, -25 °C). The product was formulated as LMeCu(III)(CH2CN), a novel Cu(III)-alkyl complex relevant to such species proposed during copper-catalyzed organic reactions.
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Affiliation(s)
- Jacqui Tehranchi
- Department of Chemistry, Center for Metals and Biocatalysis, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455, , Homepage: www.chem.umn.edu/groups/tolman
| | - Patrick J Donoghue
- Department of Chemistry, Center for Metals and Biocatalysis, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455, , Homepage: www.chem.umn.edu/groups/tolman
| | - Christopher J Cramer
- Department of Chemistry, Center for Metals and Biocatalysis, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455, , Homepage: www.chem.umn.edu/groups/tolman
| | - William B Tolman
- Department of Chemistry, Center for Metals and Biocatalysis, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455, , Homepage: www.chem.umn.edu/groups/tolman
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24
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Grzegorzek N, Nojman E, Szterenberg L, Latos-Grażyński L. Copper(II) Thiaethyneporphyrin and Copper(II) 21-Phosphoryl N-confused Porphyrin Hybrids. Intramolecular Copper(II)–Carbon Interaction Inside of a Porphyrinoid Surrounding. Inorg Chem 2013; 52:2599-606. [PMID: 23394595 DOI: 10.1021/ic302631d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Norbert Grzegorzek
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., 50-383 Wrocław,
Poland
| | - Elżbieta Nojman
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., 50-383 Wrocław,
Poland
| | - Ludmiła Szterenberg
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., 50-383 Wrocław,
Poland
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25
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26
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Gromov OI, Zubanova EM, Golubeva EN, Plyusnin VF, Zhidomirov GM, Melnikov MY. UV–Vis Identification and DFT-Assisted Prediction of Structures of Cu(II)–Alkyl Chlorocomplexes. J Phys Chem A 2012; 116:11581-5. [DOI: 10.1021/jp309222y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Oleg I. Gromov
- Chemistry Department, Lomonosov Moscow State University, Leninskiye Gory
1-3, Moscow, Russia
| | - Ekaterina M. Zubanova
- Chemistry Department, Lomonosov Moscow State University, Leninskiye Gory
1-3, Moscow, Russia
| | - Elena N. Golubeva
- Chemistry Department, Lomonosov Moscow State University, Leninskiye Gory
1-3, Moscow, Russia
| | - Victor F. Plyusnin
- Insitute of Chemical Kinetics and Combustion SB RAS, 630090 Novosibirsk,
Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Georgii M. Zhidomirov
- Chemistry Department, Lomonosov Moscow State University, Leninskiye Gory
1-3, Moscow, Russia
- Boreskov Institute of Catalysis (BIC) SB RAS, 630090 Novosibirsk, Russia
| | - Mikhail Y. Melnikov
- Chemistry Department, Lomonosov Moscow State University, Leninskiye Gory
1-3, Moscow, Russia
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27
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Schröder K, Konkolewicz D, Poli R, Matyjaszewski K. Formation and Possible Reactions of Organometallic Intermediates with Active Copper(I) Catalysts in ATRP. Organometallics 2012. [DOI: 10.1021/om3006883] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kristin Schröder
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh,
Pennsylvania 15213, United States
| | - Dominik Konkolewicz
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh,
Pennsylvania 15213, United States
| | - Rinaldo Poli
- Laboratoire de Chimie de Coordination
(LCC), CNRS, Université de Toulouse, UPS, INPT, 205, Route de Narbonne, 31077 Toulouse, France
- Institut Universitaire de France, 103, Boulevard Saint-Michel, 75005 Paris,
France
| | - Krzysztof Matyjaszewski
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh,
Pennsylvania 15213, United States
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28
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Zubanova EM, Golubeva EN, Zhidomirov GM. Metastability of copper(II) organic compounds: Molecular dynamics simulation. DOKLADY PHYSICAL CHEMISTRY 2012. [DOI: 10.1134/s0012501612090023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Synthesis and structural characterization of a binary metal cluster and a coordination polymer based on the mercury Bis(phenylselenolate) unit. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.06.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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Wang ZL, Zhao L, Wang MX. Construction of Caryl–Calkynyl Bond from Copper-Mediated Arene–Alkyne and Aryl Iodide–Alkyne Cross-Coupling Reactions: A Common Aryl-CuIII Intermediate in Arene C–H Activation and Castro–Stephens Reaction. Org Lett 2012; 14:1472-5. [DOI: 10.1021/ol300205r] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Zu-Li Wang
- MOE Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Liang Zhao
- MOE Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Mei-Xiang Wang
- MOE Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
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31
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Yang XJ, Li HX, Xu ZL, Li HY, Ren ZG, Lang JP. Spacer length-controlled assembly of [CunIn]-based coordination polymers from CuI and bis(4-phenylpyrimidine-2-thio)alkane ligands. CrystEngComm 2012. [DOI: 10.1039/c2ce06312c] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Wendlandt AE, Suess AM, Stahl SS. Kupferkatalysierte aerobe oxidative C-H-Funktionalisierungen: Trends und Erkenntnisse zum Mechanismus. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103945] [Citation(s) in RCA: 296] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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33
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Wendlandt AE, Suess AM, Stahl SS. Copper-catalyzed aerobic oxidative C-H functionalizations: trends and mechanistic insights. Angew Chem Int Ed Engl 2011; 50:11062-87. [PMID: 22034061 DOI: 10.1002/anie.201103945] [Citation(s) in RCA: 1103] [Impact Index Per Article: 84.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Indexed: 01/04/2023]
Abstract
The selective oxidation of C-H bonds and the use of O(2) as a stoichiometric oxidant represent two prominent challenges in organic chemistry. Copper(II) is a versatile oxidant, capable of promoting a wide range of oxidative coupling reactions initiated by single-electron transfer (SET) from electron-rich organic molecules. Many of these reactions can be rendered catalytic in Cu by employing molecular oxygen as a stoichiometric oxidant to regenerate the active copper(II) catalyst. Meanwhile, numerous other recently reported Cu-catalyzed C-H oxidation reactions feature substrates that are electron-deficient or appear unlikely to undergo single-electron transfer to copper(II). In some of these cases, evidence has been obtained for the involvement of organocopper(III) intermediates in the reaction mechanism. Organometallic C-H oxidation reactions of this type represent important new opportunities for the field of Cu-catalyzed aerobic oxidations.
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Affiliation(s)
- Alison E Wendlandt
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, USA
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34
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Kuwamura N, Kitano K, Hirotsu M, Nishioka T, Teki Y, Santo R, Ichimura A, Hashimoto H, Wright LJ, Kinoshita I. Redox‐Controlled, Reversible Rearrangement of a Tris(2‐pyridylthio)methyl Ligand on Nickel to an Isomer with an “
N
,
S
‐Confused” 2‐Pyridylthiolate Arm. Chemistry 2011; 17:10708-15. [DOI: 10.1002/chem.201100875] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Naoto Kuwamura
- Departments of Material Science, Chemistry and Physics, Osaka City University, 3‐3‐138 Sugimoto, Sumiyoshi‐ku, Osaka, 558‐8585 (Japan), Fax: (+81) 6‐6690‐2753
- The OCU Advanced Research Institute for Natural Science and Technology (OCARINA)
- CREST (Japan) Science and Technology Agency, 4‐1‐8 Honcho Kawaguchi, Saitama 332‐0012 (Japan)
| | - Ken'ichi Kitano
- Departments of Material Science, Chemistry and Physics, Osaka City University, 3‐3‐138 Sugimoto, Sumiyoshi‐ku, Osaka, 558‐8585 (Japan), Fax: (+81) 6‐6690‐2753
| | - Masakazu Hirotsu
- Departments of Material Science, Chemistry and Physics, Osaka City University, 3‐3‐138 Sugimoto, Sumiyoshi‐ku, Osaka, 558‐8585 (Japan), Fax: (+81) 6‐6690‐2753
| | - Takanori Nishioka
- Departments of Material Science, Chemistry and Physics, Osaka City University, 3‐3‐138 Sugimoto, Sumiyoshi‐ku, Osaka, 558‐8585 (Japan), Fax: (+81) 6‐6690‐2753
| | - Yoshio Teki
- Departments of Material Science, Chemistry and Physics, Osaka City University, 3‐3‐138 Sugimoto, Sumiyoshi‐ku, Osaka, 558‐8585 (Japan), Fax: (+81) 6‐6690‐2753
| | - Ryoko Santo
- Departments of Material Science, Chemistry and Physics, Osaka City University, 3‐3‐138 Sugimoto, Sumiyoshi‐ku, Osaka, 558‐8585 (Japan), Fax: (+81) 6‐6690‐2753
| | - Akio Ichimura
- Departments of Material Science, Chemistry and Physics, Osaka City University, 3‐3‐138 Sugimoto, Sumiyoshi‐ku, Osaka, 558‐8585 (Japan), Fax: (+81) 6‐6690‐2753
- The OCU Advanced Research Institute for Natural Science and Technology (OCARINA)
| | - Hideki Hashimoto
- Departments of Material Science, Chemistry and Physics, Osaka City University, 3‐3‐138 Sugimoto, Sumiyoshi‐ku, Osaka, 558‐8585 (Japan), Fax: (+81) 6‐6690‐2753
- The OCU Advanced Research Institute for Natural Science and Technology (OCARINA)
- CREST (Japan) Science and Technology Agency, 4‐1‐8 Honcho Kawaguchi, Saitama 332‐0012 (Japan)
| | - L. James Wright
- Department of Chemistry, University of Auckland, Private Bag 92019, Auckland (New Zealand)
| | - Isamu Kinoshita
- Departments of Material Science, Chemistry and Physics, Osaka City University, 3‐3‐138 Sugimoto, Sumiyoshi‐ku, Osaka, 558‐8585 (Japan), Fax: (+81) 6‐6690‐2753
- The OCU Advanced Research Institute for Natural Science and Technology (OCARINA)
- CREST (Japan) Science and Technology Agency, 4‐1‐8 Honcho Kawaguchi, Saitama 332‐0012 (Japan)
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35
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Golubeva EN, Gromov OI, Zhidomirov GM. Cu(II)-Alkyl Chlorocomplexes: Stable Compounds or Transients? DFT Prediction of their Structure and EPR Parameters. J Phys Chem A 2011; 115:8147-54. [DOI: 10.1021/jp202314h] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Elena N. Golubeva
- Chemistry Department, Lomonosov Moscow State University, Leninskiye Gory 1-3, Moscow, Russia
| | - Oleg I. Gromov
- Chemistry Department, Lomonosov Moscow State University, Leninskiye Gory 1-3, Moscow, Russia
| | - Georgii M. Zhidomirov
- Chemistry Department, Lomonosov Moscow State University, Leninskiye Gory 1-3, Moscow, Russia
- Boreskov Institute of Catalysis (BIC), SO RAN, Novosibirsk, 630090, Russia
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Yoshida Y, Miyamoto R, Nakato A, Santo R, Kuwamura N, Gobo K, Nishioka T, Hirotsu M, Ichimura A, Hashimoto H, Kinoshita I. Preparation and Structural Features of Cu(I)Cu(II) Coordination Polymers Obtained by Using Tripodal Complexes as Bridging Ligands. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2011. [DOI: 10.1246/bcsj.20100361] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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37
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Rearrangement of the Tris(2-pyridylthio)methanido Ligand in an Iron(II) Complex Containing an Fe−C Bond. Inorg Chem 2010; 50:708-10. [DOI: 10.1021/ic101913p] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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38
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Belén Lago A, Amoedo A, Carballo R, García-Martínez E, Vázquez-López EM. Metal coordination and in situ S-C bond cleavage of the bis(2-pyridylthio)methane ligand. Dalton Trans 2010; 39:10076-87. [PMID: 20882242 DOI: 10.1039/c0dt00560f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The compound [2bpytmH](2)[I(3)](2)[I(2)], which contains protonated 2bpytm, and four neutral monomeric complexes [CoCl(2)(2bpytm)]·H(2)O (1), [CoBr(2)(2bpytm)] (2), [CoI(2)(2bpytm)]·1/2H(2)O (3) and [NiBr(2)(2bpytm)]·H(2)O (4) have been obtained during a study into the reactivity of the bis(2-pyridylthio)methane (2bpytm) ligand towards cobalt(II) and nickel(II) halides. Furthermore, a cyclic dimer [CuBr(2)(2bpytm)](2) (5) and a 1D polymer [CuBr(2)(2bpytm)](n)·CH(3)CN (6) have been obtained from copper(II)/(I) bromide salts. An unprecedented S-CH(2)-S activation and cleavage in 2bpytm has been observed on using copper(II) salts with organic and voluminous inorganic anions. The cleavage of 2bpytm enabled the isolation of copper(II) complexes containing the in situ generated ligands 2-pyridinethiolate, 2-pyridinesulfenate or 2-pyridinesulfonate.
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Affiliation(s)
- Ana Belén Lago
- Departamento de Química Inorgánica, Facultade de Química, Universidade de Vigo, E-36310, Vigo, Galicia-Spain.
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Amoedo A, Carballo R, García-Martínez E, Lago AB, Vázquez-López EM. Molecular metallocycles, acyclic metallodimers and 2D coordination polymers containing the twisted ligand bis(pyrimidin-2-ylthio)methane. Dalton Trans 2010; 39:2385-94. [DOI: 10.1039/b915942h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Constable EC, Housecroft CE, Neuburger M, Price JR, Zampese JA. Redox addressable ligands in copper(i) coordination chemistry: thione and oligosulfide-bridged 6-methyl-2,2′-bipyridines. CrystEngComm 2010. [DOI: 10.1039/c002827d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Kuwamura N, Kato R, Kitano K, Hirotsu M, Nishioka T, Hashimoto H, Kinoshita I. Carbene–carbanion equilibrium for tris(2-pyridylthio)methanido Fe(ii) complexes. Dalton Trans 2010; 39:9988-93. [DOI: 10.1039/c0dt00615g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Halder P, Dey A, Paine TK. Molecular and Electronic Structure of a Nonheme Iron(II) Model Complex Containing an Iron−Carbon Bond. Inorg Chem 2009; 48:11501-3. [DOI: 10.1021/ic901841w] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Partha Halder
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science (IACS), 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Abhishek Dey
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science (IACS), 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
| | - Tapan Kanti Paine
- Department of Inorganic Chemistry, Indian Association for the Cultivation of Science (IACS), 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India
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43
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Berlini L, de Souza MC, De Abreu HA, Leitão AA, Maia JRDS, Diniz R. Intermolecular interactions on the crystal packing of 1,6-bis(pyrimidin-2-ylthio)hexane: Spectroscopic and theoretical investigation. J Mol Struct 2009. [DOI: 10.1016/j.molstruc.2009.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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44
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Golubeva EN, Zhidomirov GM, Kokorin AI. On the stability of copper(II) organic compounds with the σ bond Cu-C: A quantum-chemical study. DOKLADY CHEMISTRY 2009. [DOI: 10.1134/s0012500809060081] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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45
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Grzegorzek N, Pawlicki M, Szterenberg L, Latos-Grażyński L. Organocopper(II) Complex of 21-Diphenylphosphoryl-Carbaporpholactone Hybrid: A Side-On Coordination Mode of Copper(II). J Am Chem Soc 2009; 131:7224-5. [DOI: 10.1021/ja902310n] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Norbert Grzegorzek
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., Wrocław 50 383, Poland
| | - Miłosz Pawlicki
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., Wrocław 50 383, Poland
| | - Ludmiła Szterenberg
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., Wrocław 50 383, Poland
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Yoo HS, Yoon JH, Kim JI, Koh EK, Hong CS. Unprecedented N‐Inserted Disulfide Ligand Stabilized by Coordination to the Electropositive Co
III
Center. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800439] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Houng Sik Yoo
- Department of Chemistry and Center for Electro‐ and Photo‐Responsive Molecules, Korea University, Seoul 136‐713, Korea
| | - Jung Hee Yoon
- Department of Chemistry and Center for Electro‐ and Photo‐Responsive Molecules, Korea University, Seoul 136‐713, Korea
| | - Jae Il Kim
- Department of Chemistry and Center for Electro‐ and Photo‐Responsive Molecules, Korea University, Seoul 136‐713, Korea
| | - Eui Kwan Koh
- Nano‐Bio System Research Team, Korea Basic Science Institute, Seoul 136‐713, Korea
| | - Chang Seop Hong
- Department of Chemistry and Center for Electro‐ and Photo‐Responsive Molecules, Korea University, Seoul 136‐713, Korea
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47
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Synthesis and characterization of [chloro{2(1H)-pyridinethione-S}{tris(pyridin-2-ylthiolato)methyl-C,N,N′,N″]}nickel(II)], [Ni(TPTM)(SPyH)Cl]. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2008.02.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kinoshita I, Hashimoto H, Nishioka T, Miyamoto R, Kuwamura N, Yoshida Y. Mimicking the photosynthetic system with strong hydrogen bonds to promote proton electron concerted reactions. PHOTOSYNTHESIS RESEARCH 2008; 95:363-371. [PMID: 17968672 DOI: 10.1007/s11120-007-9263-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2007] [Accepted: 09/11/2007] [Indexed: 05/25/2023]
Abstract
A Copper(2+) complex with a Cu(II)-C bond containing sp(3) configuration was used to investigate the role of strong hydrogen bonds in proton coupled electron transfer (PCET) reactions. The only example of a Cu(II)-C system realized so far is that using tris-(pyridylthio)methyl (tptm) as a tetradentate tripodal ligand. Using this ligand, [CuF(tptm)] and [Cu(tptm)(OH)] have been prepared. The former complex forms supra-molecular arrays of layers of the complex between which hydroquinone is intercalated in the crystalline phase. This hydroquinone intercalation crystal was prepared via the photochemical conversion of quinone during the crystallization process. This conversion reaction probably involves a proton coupled electron transfer process. The nuclear magnetic resonance spectroscopic analysis of the reaction mixture shows the presence of Cu(III) during the conversion reaction. These results strongly suggest the presence of the molecular aggregate of the [CuF(tptm)] complex, water and quinone in the solution phase during the quinone to hydroquinone conversion. The presence of this type of aggregate requires a strong hydrogen bond between the [CuF(tptm)] complex and water. The presence of this particular hydrogen bond is a unique character of such a complex that has the Cu(II)-C bond. This complex is used as a model for photosynthetic water splitting since the photoconversion of quinone to hydroquinone also involves the production of oxygen from water.
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Affiliation(s)
- Isamu Kinoshita
- Graduate School of Science, Osaka-City University, Osaka, 558-8585, Japan.
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50
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Kitano K, Kuwamura N, Tanaka R, Santo R, Nishioka T, Ichimura A, Kinoshita I. Synthesis and characterization of tris(2-pyridylthio)methanido Zn complex with a Zn–C bond and DFT calculation of its one-electron oxidized species. Chem Commun (Camb) 2008:1314-6. [DOI: 10.1039/b715996j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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