1
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Mechrouk V, Leforestier B, Chen W, Poblador-Bahamonde AI, Maisse-Francois A, Bellemin-Laponnaz S, Achard T. Diastereoselective Synthesis of Sulfoxide-Functionalized N-Heterocyclic Carbene Ruthenium Complexes: An Experimental and Computational Study. Chemistry 2024:e202401390. [PMID: 38862385 DOI: 10.1002/chem.202401390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 06/10/2024] [Accepted: 06/11/2024] [Indexed: 06/13/2024]
Abstract
The synthesis of sulfoxide-functionalized NHC ligand precursors were carried out by direct and mild oxidation from corresponding thioether precursors with high selectivity. Using these salts, a series of cationic [Ru(II)(η6-p-cymene)(NHC-SO)Cl]+ complexes were obtained in excellent yields by the classical Ag2O transmetallation route. NMR analyses suggested a chelate structure for the metal complexes, and X-ray diffractometry studies of complexes 4 b, 4 c, 4dBArF and 4 e unambiguously confirmed the preference for the bidentate (κ2-C,S) coordination mode of the NHC-SO ligands. Interestingly, only one diastereomer, in the form of an enantiomeric pair, was observed both in 1H NMR and in the solid state for the complexes. DFT calculations showed a possible intrinsic energy difference between the two pairs of diastereomer. The calculated energy barriers suggested that inversion of the sulfoxide is only plausible from the higher energy diastereomer together with bulky substituents. Inverting the configuration at the Ru center instead shows a lower and accessible activation barrier to provide the most stable diastereomer through thermodynamic control, consistent with the observation of a single species by 1H NMR as a pair of enantiomers. All these complexes catalyse the β-alkylation of secondary alcohols. Complex 4dPF6 bearing an NHC-functionalised S-Ad group has been further studied with different primary and secondary alcohols as substrates, showing high reactivity and high to moderate β-ol-selectivities.
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Affiliation(s)
- Victoria Mechrouk
- Institut de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg-CNRS UMR 7504, 23 rue du Loess, BP 43, 67034, Strasbourg Cedex 2, France
| | - Baptiste Leforestier
- Department of Organic Chemistry, University of Geneva, 30 Quai Ernest Ansermet, 1211, Geneva, Switzerland
| | - Weighang Chen
- Institut de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg-CNRS UMR 7504, 23 rue du Loess, BP 43, 67034, Strasbourg Cedex 2, France
| | | | - Aline Maisse-Francois
- Institut de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg-CNRS UMR 7504, 23 rue du Loess, BP 43, 67034, Strasbourg Cedex 2, France
| | - Stéphane Bellemin-Laponnaz
- Institut de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg-CNRS UMR 7504, 23 rue du Loess, BP 43, 67034, Strasbourg Cedex 2, France
| | - Thierry Achard
- Institut de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg-CNRS UMR 7504, 23 rue du Loess, BP 43, 67034, Strasbourg Cedex 2, France
- New address: ISM2 (UMR 7313), Aix Marseille University, CNRS, Centrale Marseille, 52 Av. Escadrille Normandie Niemen, 13013, Marseille, France
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2
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Aweke BS, Yu CH, Shen JS, Wang S, Yap GPA, Chen WC, Ong TG. Binuclear Macrocyclic Silver(I) Complex of a Bis(carbone) Pincer Ligand: Synthesis and Application as a Carbone-Transfer Agent. Inorg Chem 2023; 62:12664-12673. [PMID: 37523291 DOI: 10.1021/acs.inorgchem.3c00765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
A facile synthesis of a binuclear AgI complex 2 of a bis(carbone) ligand L and its application as a carbone-transfer agent for the generation of other transition-metal complexes of AuI (3), NiII (4), and PdII (5) is presented. Complex 2 was synthesized through multiple synthetic routes under mild reaction conditions using the tetracationic [LH4][OTf·Cl]2 precursor salt, the dicationic [LH2][OTf]2 ylide salt, and the free ligand L. The first two synthesis routes require no prior isolation of the air-, moisture-, and temperature-sensitive free ligand L, thus affording complex 2 with high yield and purity. Multinuclear NMR techniques, high-resolution mass spectrometry, and single-crystal X-ray diffraction analysis confirmed the identity of complex 2 as a binuclear AgI complex of L with a molecular formula of [L2Ag2][OTf]2 and a 16-membered-ring metallomacrocyclic structure. During the transmetalation reaction with AuI, the binuclear nature of complex 2 remains intact to give analogous complex 3 ([L2Au2][OTf]2). However, the dimeric structure was disrupted upon the carbone-transfer reaction with NiII and PdII, yielding mononuclear C-N-C pincer-type complexes 4 ([LNiCl][OTf]) and 5 ([LPdCl][OTf]), respectively. These results demonstrated the versatile use of complex 2 as a carbone-transfer agent to other transition metals regardless of the type or size of the metals or the geometry they prefer.
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Affiliation(s)
- Bamlaku Semagne Aweke
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program, Academia Sinica, Taipei 11529, Taiwan
| | - Cheng-Han Yu
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Jiun-Shian Shen
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
- Department of Chemistry, National Taiwan University, Taipei 106216, Taiwan
| | - Sheng Wang
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Glenn P A Yap
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Wen-Ching Chen
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Tiow-Gan Ong
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
- Department of Chemistry, National Taiwan University, Taipei 106216, Taiwan
- Department of Medicinal and Applied Chemistry, National Taiwan University 10617 Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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3
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Gan MM, Wang F, Li X, Sun LY, Yuan G, Han YF. Formation of Metallosupramolecular Helicates and Mesocates from Poly- N-Heterocyclic Carbene Ligands. Inorg Chem 2023; 62:2599-2606. [PMID: 36474312 DOI: 10.1021/acs.inorgchem.2c03245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this work, a series of poly-NHC-based tetranuclear silver helicates and mesocates were synthesized from the silver-mediated self-assembly of the ligands involving multiple tridentate CNC-type pincer units and NHC coordination sites. The silver helicate was found to be transferred to a gold mesocate upon metal exchange reaction. The metallosupramolecular helicates and mesocates have been fully characterized by single-crystal X-ray crystallography, mass spectrometry, and multinuclear nuclear magnetic resonance spectroscopies. This study provides an example of the selective preparation of poly-NHC-based helicates or mesocates depending on the size of metal ions and the steric effect of ligands.
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Affiliation(s)
- Ming-Ming Gan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, P. R. China
| | - Fang Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, P. R. China
| | - Xin Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, P. R. China
| | - Li-Ying Sun
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, P. R. China
| | - Guozan Yuan
- School of Chemistry and Chemical Engineering, Institute of Materials Science and Engineering, Anhui University of Technology, Maanshan, Anhui 243032, P. R. China
| | - Ying-Feng Han
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, P. R. China
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4
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Longhi A, Baron M, Rancan M, Bottaro G, Orian L, Graiff C, Roverso M, Menegazzo I, Armelao L, Bogialli S, Tubaro C. Silver(I) and gold(I) complexes with bitriazole‐based N‐heterocyclic carbene ligand: solid state features and behavior in solution. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Andrea Longhi
- Dipartimento di Scienze Chimiche Università degli Studi di Padova Padova Italy
| | - Marco Baron
- Dipartimento di Scienze Chimiche Università degli Studi di Padova Padova Italy
| | - Marzio Rancan
- ICMATE‐CNR, c/o Dipartimento di Scienze Chimiche Padova Italy
| | | | - Laura Orian
- Dipartimento di Scienze Chimiche Università degli Studi di Padova Padova Italy
| | - Claudia Graiff
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma Parma Italy
| | - Marco Roverso
- Dipartimento di Scienze Chimiche Università degli Studi di Padova Padova Italy
| | - Ileana Menegazzo
- Dipartimento di Scienze Chimiche Università degli Studi di Padova Padova Italy
| | - Lidia Armelao
- Dipartimento di Scienze Chimiche Università degli Studi di Padova Padova Italy
- Dipartimento di Scienze Chimiche e Tecnologie dei Materiali, Consiglio Nazionale delle Ricerche Roma Italy
| | - Sara Bogialli
- Dipartimento di Scienze Chimiche Università degli Studi di Padova Padova Italy
- ICMATE‐CNR, c/o Dipartimento di Scienze Chimiche Padova Italy
| | - Cristina Tubaro
- Dipartimento di Scienze Chimiche Università degli Studi di Padova Padova Italy
- ICMATE‐CNR, c/o Dipartimento di Scienze Chimiche Padova Italy
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5
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Trevisan G, Vitali V, Tubaro C, Graiff C, Marchenko A, Koidan G, Hurieva AN, Kostyuk A, Mauceri M, Rizzolio F, Accorsi G, Biffis A. Dinuclear gold(I) complexes with N-phosphanyl, N-heterocyclic carbene ligands: synthetic strategies, luminescence properties and anticancer activity. Dalton Trans 2021; 50:13554-13560. [PMID: 34505859 DOI: 10.1039/d1dt02444b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A small library of dinuclear gold(I) complexes with the title ligands has been prepared, encompassing neutral, mono- and dicationic complexes. The luminescence properties of the complexes in the solid state have been evaluated, and it turns out that neutral and monocationic complexes not presenting a rigid metallamacrocyclic structure can exhibit rather strong emissions that extend towards the red region of the visible spectrum. The in vitro anticancer activity of the complexes has been also preliminarly evaluated; cytotoxicity seems to correlate with complex lipophilicity, whereas selectivity towards cancer cells can be apparently enhanced upon a judicious choice of the ligands.
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Affiliation(s)
- Gianmarco Trevisan
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131 Padova, Italy. .,CIRCC-Consorzio Interuniversitario per le Reattività Chimiche e la Catalisi, Università di Padova, via Marzolo 1, 35131 Padova, Italy
| | - Valentina Vitali
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131 Padova, Italy. .,CIRCC-Consorzio Interuniversitario per le Reattività Chimiche e la Catalisi, Università di Padova, via Marzolo 1, 35131 Padova, Italy
| | - Cristina Tubaro
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131 Padova, Italy. .,CIRCC-Consorzio Interuniversitario per le Reattività Chimiche e la Catalisi, Università di Padova, via Marzolo 1, 35131 Padova, Italy
| | - Claudia Graiff
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Anatoliy Marchenko
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska 5, Kyiv-94, 02660, Ukraine
| | - Georgyi Koidan
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska 5, Kyiv-94, 02660, Ukraine
| | - Anastasiia N Hurieva
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska 5, Kyiv-94, 02660, Ukraine
| | - Aleksandr Kostyuk
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Murmanska 5, Kyiv-94, 02660, Ukraine
| | - Matteo Mauceri
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari, Campus Scientifico Via Torino 155, 30174 Venezia-Mestre, Italy
| | - Flavio Rizzolio
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari, Campus Scientifico Via Torino 155, 30174 Venezia-Mestre, Italy.,Pathology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano 33081, Italy
| | - Gianluca Accorsi
- CNR NANOTEC, Institute of Nanotechnology, c/o Campus Ecotekne, via Monteroni, Lecce, 73100, Italy
| | - Andrea Biffis
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131 Padova, Italy. .,CIRCC-Consorzio Interuniversitario per le Reattività Chimiche e la Catalisi, Università di Padova, via Marzolo 1, 35131 Padova, Italy
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6
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Strategies for the construction of supramolecular assemblies from poly-NHC ligand precursors. Sci China Chem 2021. [DOI: 10.1007/s11426-020-9937-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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7
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Röther A, Kretschmer R. Syntheses of Bis(N-heterocyclic carbene)s and their application in main-group chemistry. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121289] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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8
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Volpe A, Sartorel A, Graiff C, Bonchio M, Biffis A, Baron M, Tubaro C. Chelating di(N-heterocyclic carbene) complexes of iridium(III): Structural analysis, electrochemical characterisation and catalytic oxidation of water. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121260] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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A. C. A. Bayrakdar T, Scattolin T, Ma X, Nolan SP. Dinuclear gold(i) complexes: from bonding to applications. Chem Soc Rev 2020; 49:7044-7100. [DOI: 10.1039/d0cs00438c] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The last two decades have seen a veritable explosion in the use of gold(i) complexes bearing N-heterocyclic carbene (NHC) and phosphine (PR3) ligands.
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Affiliation(s)
| | - Thomas Scattolin
- Department of Chemistry and Center for Sustainable Chemistry
- Ghent University
- Ghent
- Belgium
| | - Xinyuan Ma
- Department of Chemistry and Center for Sustainable Chemistry
- Ghent University
- Ghent
- Belgium
| | - Steven P. Nolan
- Department of Chemistry and Center for Sustainable Chemistry
- Ghent University
- Ghent
- Belgium
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10
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Baron M, Dall’Anese A, Miolato A, Cairoli MLC, Di Marco V, Graiff C, Pöthig A, Tubaro C. New homoleptic gold carbene complexes via Ag–Au transmetalation: synthesis and application of [Au(diNHC) 2] 3+ cations as 1H-NMR and UV-vis halide sensors. NEW J CHEM 2020. [DOI: 10.1039/c9nj05809e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Novel homoleptic gold(iii) complexes with bidentate N-heterocyclic carbene ligands have been successfully synthesised by transmetalation reaction and studied as anion sensors in solution by means of 1H NMR and UV-vis titration experiments.
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Affiliation(s)
- Marco Baron
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Anna Dall’Anese
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Alessandro Miolato
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | | | - Valerio Di Marco
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Claudia Graiff
- Dipartimento di Scienze Chimiche
- della Vita e della Sostenibilità Ambientale
- Università degli Studi di Parma
- 43124 Parma
- Italy
| | - Alexander Pöthig
- Department of Chemistry and Catalysis Research Center
- Technical University of Munich
- Garching
- Germany
| | - Cristina Tubaro
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
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11
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Singh VK, Donthireddy SNR, Illam PM, Rit A. Transition metal complexes of a bis(carbene) ligand featuring 1,2,4-triazolin-5-ylidene donors: structural diversity and catalytic applications. Dalton Trans 2020; 49:11958-11970. [PMID: 32812607 DOI: 10.1039/d0dt02142c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Dialkylation of the 1,3-bis(1,2,4-triazol-1-yl)benzene with ethyl bromide results in the formation of [L-H2]Br2 which, upon salt metathesis with NH4PF6, readily yields the bis(triazolium) salt [L-H2](PF6)2 with non-coordinating counterions. [L-H2](PF6)2 and Ag2O react in a 1 : 1 ratio to yield a binuclear AgI-tetracarbene complex of the composition [(L)2Ag2](PF6)2 which undergoes a facile transmetalation reaction with [Cu(SMe2)Br] to deliver the corresponding CuI-NHC complex [(L)2Cu2](PF6)2. In contrast, the [L-H2]Br2 reacts with [Ir(Cp*)Cl2]2 to generate a doubly C-H activated IrIII-NHC complex 5. Similarly, the triazolinylidene donor supported diorthometalated RuII-complex 6 is also obtained. Complexes 5 and 6 represent the first examples of a stable diorthometalated binuclear IrIII/RuII-complex supported by 1,2,4-triazolin-5-ylidene donors. The synthesized IrIII-NHC complex 5 is found to be more effective than its RuII-analogue (6) for the reduction of a range of alkenes/alkynes via the transfer hydrogenation strategy. Conversely, RuII-complex 6 is identified as an efficient catalyst (0.01 mol% loading) for the β-alkylation of a wide range of secondary alcohols using primary alcohols as alkylating partners via a borrowing hydrogen strategy.
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Affiliation(s)
- Vivek Kumar Singh
- Department of Chemistry, Indian Institute of Technology, Madras, Chennai 600036, India.
| | - S N R Donthireddy
- Department of Chemistry, Indian Institute of Technology, Madras, Chennai 600036, India.
| | | | - Arnab Rit
- Department of Chemistry, Indian Institute of Technology, Madras, Chennai 600036, India.
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12
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Hydroalkoxylation of Terminal and Internal Alkynes Catalyzed by Dinuclear Gold(I) Complexes with Bridging Di(N-Heterocyclic Carbene) Ligands. Catalysts 2019. [DOI: 10.3390/catal10010001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
A series of six dinuclear gold(I) complexes with bridging bidentate N-heterocycic carbene ligands (NHCs) of general formula Au2Br2LX (L = diNHC, X = 1–6) have been studied as catalysts in the intermolecular hydroalkoxylation of terminal and internal alkynes. The best catalytic results have been obtained by using Au2Br2L4, characterized by 2,6-diisopropylphenyl wingtip substituents and a methylene bridging group between the two NHC donors. Complex Au2Br2L4 has been structurally characterized for the first time in this work, showing the presence of intramolecular aurophiclic interaction in the solid state. In the adopted reaction conditions Au2Br2L4 is able to convert challenging substrates such as diphenylacetylene. Comparative catalytic tests by using the mononuclear gold(I) complexes AuIL7 and IPrAuCl have been performed in order to determine the possible presence of cooperative effects in the catalytic process.
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13
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Thapa R, Kilyanek SM. Synthesis and structural characterization of 20-membered macrocyclic rings bearing trans-chelating bis(N-heterocyclic carbene) ligands and the catalytic activity of their palladium(ii) complexes. Dalton Trans 2019; 48:12577-12590. [PMID: 31368475 PMCID: PMC6702049 DOI: 10.1039/c9dt02147g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Macrocycles consisting of a 20-membered ring containing two imidazolium salt functionalities and of the formula [PhCH2N(CH2CH2CH2)Im(CH2CH2CH2)2][Br]2 (Im = imidazole = 3a, benzimidazole = 3b) were synthesized in 70-75% yields. These salts serve as precursors to macrocycles containing two N-heterocyclic carbene (NHC) moieties. Reaction of the macrocyclic salts 3a and 3b with silver oxide afforded macrocyclic-bis(NHC)silver(i) complexes 4a and 4b. Single-crystal X-ray diffraction studies of macrocyclic-bis(NHC)silver(i) complex 4a revealed a tetranuclear silver core with a short Ag-Ag distance (2.9328 Å). Complexes 4a and 4b serve as carbene transfer reagents to Pd. The treatment of macrocyclic-bis(NHC)silver(i) complexes 4a and 4b with one equivalent of PdCl2(MeCN)2 in methylene chloride afforded square-planar trans-macrocyclic-bis(NHC)Pd(ii)X2 complexes 5a and 5b. Preliminary screening of these palladium complexes showed they are competent precatalysts for Heck and Suzuki coupling reactions.
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Affiliation(s)
- Rajesh Thapa
- Department of Chemistry and Biochemistry, 1 University of Arkansas, Fayetteville, AR 72701, USA.
| | - Stefan M Kilyanek
- Department of Chemistry and Biochemistry, 1 University of Arkansas, Fayetteville, AR 72701, USA.
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14
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Demir Atlı D, Gülle S. Dinuclear N-heterocyclic carbene silver complexes: Synthesis, luminescence and catalytic studies. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.11.053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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15
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Gardiner MG, Ho CC. Recent advances in bidentate bis(N-heterocyclic carbene) transition metal complexes and their applications in metal-mediated reactions. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.02.003] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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16
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Gan MM, Liu JQ, Zhang L, Wang YY, Hahn FE, Han YF. Preparation and Post-Assembly Modification of Metallosupramolecular Assemblies from Poly(N-Heterocyclic Carbene) Ligands. Chem Rev 2018; 118:9587-9641. [DOI: 10.1021/acs.chemrev.8b00119] [Citation(s) in RCA: 202] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ming-Ming Gan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Ji-Quan Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Le Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - Yao-Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - F. Ekkehardt Hahn
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Ying-Feng Han
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, P. R. China
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17
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Di(N-heterocyclic carbene) gold(III) imidate complexes obtained by oxidative addition of N-halosuccinimides. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.03.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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18
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Rieb J, Dominelli B, Mayer D, Jandl C, Drechsel J, Heydenreuter W, Sieber SA, Kühn FE. Influence of wing-tip substituents and reaction conditions on the structure, properties and cytotoxicity of Ag(i)- and Au(i)-bis(NHC) complexes. Dalton Trans 2018; 46:2722-2735. [PMID: 28174778 DOI: 10.1039/c6dt04559f] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The formation of different conformers of dinuclear silver(i) and gold(i) 1,1'-(2-hydroxyethane-1,1-diyl) bridge-functionalized bis(NHC) complexes with various wing-tip substituents (R = methyl, isopropyl and mesityl) has been investigated using multinuclear NMR spectroscopy and SC-XRD as well as DFT calculations. The ratio of anti/syn isomers strongly depends both on wing-tip substituents and the metal. Moreover, the reaction temperature plays a significant role during the transmetallation process for the ratio of gold(i) conformers, which is further affected by purification procedures. All obtained Au(i)-bis(NHC) complexes have been applied in a standard MTT assay performed for screening the antiproliferative activity against human lung and liver cancer cells. Strong evidence for a significant influence of both wing-tip substituents and conformation on the cytotoxic properties of the applied complexes has been found.
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Affiliation(s)
- Julia Rieb
- Department of Chemistry and Catalysis Research Center, Molecular Catalysis, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching bei München, Germany.
| | - Bruno Dominelli
- Department of Chemistry and Catalysis Research Center, Molecular Catalysis, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching bei München, Germany.
| | - David Mayer
- Department of Chemistry and Catalysis Research Center, Molecular Catalysis, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching bei München, Germany.
| | - Christian Jandl
- Catalysis Research Center, Technische Universität München, Ernst-Otto-Fischer Straße 1, D-85747 Garching bei München, Germany
| | - Jonas Drechsel
- Chair of Organic Chemistry II, Department of Chemistry, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching bei München, Germany
| | - Wolfgang Heydenreuter
- Chair of Organic Chemistry II, Department of Chemistry, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching bei München, Germany
| | - Stephan A Sieber
- Chair of Organic Chemistry II, Department of Chemistry, Technische Universität München, Lichtenbergstraße 4, D-85747 Garching bei München, Germany
| | - Fritz E Kühn
- Department of Chemistry and Catalysis Research Center, Molecular Catalysis, Technische Universität München, Lichtenbergstr. 4, D-85747 Garching bei München, Germany.
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19
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Lu T, Yang CF, Steren CA, Fei F, Chen XT, Xue ZL. Synthesis and characterization of Ag(i) and Au(i) complexes with macrocyclic hybrid amine N-heterocyclic carbene ligands. NEW J CHEM 2018. [DOI: 10.1039/c7nj04020b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N-Heterocyclic carbene Ag(i) and Au(i) complexes with various structures synthesized from four macrocyclic hybrid amine–benzimidazolium salts have been structurally characterized.
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Affiliation(s)
- Taotao Lu
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Chu-Fan Yang
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | | | - Fan Fei
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Xue-Tai Chen
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
| | - Zi-Ling Xue
- Department of Chemistry
- University of Tennessee
- Knoxville
- USA
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20
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Baron M, Dall'Anese A, Tubaro C, Orian L, Di Marco V, Bogialli S, Graiff C, Basato M. A square planar gold(iii) bis-(1,1′-dimethyl-3,3′-methylene-diimidazol-2,2′-diylidene) trication as an efficient and selective receptor towards halogen anions: the cooperative effect of Au⋯X and X⋯HC interactions. Dalton Trans 2018; 47:935-945. [DOI: 10.1039/c7dt03672h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A tetra-NHC gold(iii) complex acts as anion sensor.
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Affiliation(s)
- Marco Baron
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Anna Dall'Anese
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Cristina Tubaro
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Laura Orian
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Valerio Di Marco
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Sara Bogialli
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
| | - Claudia Graiff
- Dipartimento di Scienze Chimiche
- della Vita e della Sostenibilità Ambientale
- Università degli Studi di Parma
- 43124 Parma
- Italy
| | - Marino Basato
- Dipartimento di Scienze Chimiche
- Università degli Studi di Padova
- 35131 Padova
- Italy
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21
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Pell TP, Stringer BD, Tubaro C, Hogan CF, Wilson DJD, Barnard PJ. Probing Conformational Variation in Luminescent Dinuclear Gold(I) N-Heterocyclic Carbene Complexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700484] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Thomas P. Pell
- Department of Chemistry and Physics; La Trobe Institute for Molecular Science; La Trobe University; 3086 Melbourne Victoria Australia
| | - Bradley D. Stringer
- Department of Chemistry and Physics; La Trobe Institute for Molecular Science; La Trobe University; 3086 Melbourne Victoria Australia
| | - Cristina Tubaro
- Dipartimento di Scienze Chimiche; Università degli Studi di Padova; via Marzolo 1 35131 Padova Italy
| | - Conor F. Hogan
- Department of Chemistry and Physics; La Trobe Institute for Molecular Science; La Trobe University; 3086 Melbourne Victoria Australia
| | - David J. D. Wilson
- Department of Chemistry and Physics; La Trobe Institute for Molecular Science; La Trobe University; 3086 Melbourne Victoria Australia
| | - Peter J. Barnard
- Department of Chemistry and Physics; La Trobe Institute for Molecular Science; La Trobe University; 3086 Melbourne Victoria Australia
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22
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Charra V, de Frémont P, Braunstein P. Multidentate N-heterocyclic carbene complexes of the 3d metals: Synthesis, structure, reactivity and catalysis. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.03.007] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Monticelli M, Bellemin-Laponnaz S, Tubaro C, Rancan M. Synthesis, Structure and Antitumoural Activity of Triazole-Functionalised NHC-Metal Complexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700142] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Marco Monticelli
- Dipartimento di Scienze Chimiche; Università degli Studi di Padova; Via F. Marzolo 1 35131 Padova Italy
- Institut de Physique et Chimie des Matériaux de Strasbourg; CNRS-Université de Strasbourg UMR7504; 23 rue du Loess BP 43 67034 Strasbourg France
| | - Stéphane Bellemin-Laponnaz
- Institut de Physique et Chimie des Matériaux de Strasbourg; CNRS-Université de Strasbourg UMR7504; 23 rue du Loess BP 43 67034 Strasbourg France
| | - Cristina Tubaro
- Dipartimento di Scienze Chimiche; Università degli Studi di Padova; Via F. Marzolo 1 35131 Padova Italy
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24
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Collado A, Bohnenberger J, Oliva-Madrid MJ, Nun P, Cordes DB, Slawin AMZ, Nolan SP. Synthesis of AuI- and AuIII-Bis(NHC) Complexes: Ligand Influence on Oxidative Addition to AuISpecies. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600791] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Alba Collado
- EaStCHEM; School of Chemistry; University of St Andrews; Purdie Building, North Haugh KY16 9ST St Andrews, Fife United Kingdom
| | - Jan Bohnenberger
- EaStCHEM; School of Chemistry; University of St Andrews; Purdie Building, North Haugh KY16 9ST St Andrews, Fife United Kingdom
| | - María-José Oliva-Madrid
- EaStCHEM; School of Chemistry; University of St Andrews; Purdie Building, North Haugh KY16 9ST St Andrews, Fife United Kingdom
| | - Pierrick Nun
- EaStCHEM; School of Chemistry; University of St Andrews; Purdie Building, North Haugh KY16 9ST St Andrews, Fife United Kingdom
| | - David B. Cordes
- EaStCHEM; School of Chemistry; University of St Andrews; Purdie Building, North Haugh KY16 9ST St Andrews, Fife United Kingdom
| | - Alexandra M. Z. Slawin
- EaStCHEM; School of Chemistry; University of St Andrews; Purdie Building, North Haugh KY16 9ST St Andrews, Fife United Kingdom
| | - Steven P. Nolan
- Department of Inorganic and Physical Chemistry; Ghent University; Krijgslaan 281 - S3 9000 Gent Belgium
- Chemistry Department; College of Science; King Saud University; P. O. Box 2455 11451 Riyadh Saudi Arabia
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