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Pilar Del Río M, Villarroya BE, López JA, Geer AM, Lahoz FJ, Ciriano MA, Tejel C. Mixed-Valence Tetrametallic Iridium Chains. Chemistry 2023; 29:e202301438. [PMID: 37402228 DOI: 10.1002/chem.202301438] [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: 05/05/2023] [Revised: 07/04/2023] [Accepted: 07/04/2023] [Indexed: 07/06/2023]
Abstract
Neutral [X-{Ir2 }-{Ir2 }-X] (X=Cl, Br, SCN, I) and dicationic [L-{Ir2 }-{Ir2 }-L]2+ (L=MeCN, Me2 CO) tetrametallic iridium chains made by connecting two dinuclear {Ir2 } units ({Ir2 }=[Ir2 (μ-OPy)2 (CO)4 ], OPy=2-pyridonate) by an iridium-iridium bond are described. The complexes exhibit fractional averaged oxidation states of +1.5 and electronic delocalization along the metallic chain. While the axial ligands do not significantly affect the metal-metal bond lengths, the metallic chain has a significant impact on the iridium-L/X bond distances. The complexes show free rotation around the unsupported iridium-iridium bond in solution, with a low-energy transition state for the chloride chain. The absorption spectra of these complexes show characteristic bands at 438-504 nm, which can be fine-tuned by varying the terminal capping ligands.
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Affiliation(s)
- M Pilar Del Río
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, Facultad de Ciencias, 50009, Zaragoza, Spain
| | - B Eva Villarroya
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, Facultad de Ciencias, 50009, Zaragoza, Spain
| | - José A López
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, Facultad de Ciencias, 50009, Zaragoza, Spain
| | - Ana M Geer
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, Facultad de Ciencias, 50009, Zaragoza, Spain
| | - Fernando J Lahoz
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, Facultad de Ciencias, 50009, Zaragoza, Spain
| | - Miguel A Ciriano
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, Facultad de Ciencias, 50009, Zaragoza, Spain
| | - Cristina Tejel
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, Facultad de Ciencias, 50009, Zaragoza, Spain
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Sheetal, Mehara P, Das P. Methanol as a greener C1 synthon under non-noble transition metal-catalyzed conditions. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Cao Y, Huang Y, He L. Sustainable Route Toward N-Boc Amines: AuCl 3 /CuI-Catalyzed N-tert-butyloxycarbonylation of Amines at Room Temperature. CHEMSUSCHEM 2022; 15:e202102400. [PMID: 34841655 DOI: 10.1002/cssc.202102400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 11/25/2021] [Indexed: 06/13/2023]
Abstract
N-tert-butoxycarbonyl (N-Boc) amines are useful intermediates in synthetic/medicinal chemistry. Traditionally, they are prepared via an indirect phosgene route with poor atom economy. Herein, a step- and atom-economic synthesis of N-Boc amines from amines, t-butanol, and CO was reported at room temperature. Notably, this N-tert-butyloxycarbonylation procedure utilized ready-made substrates, commercially available AuCl3 /CuI as catalysts, and O2 from air as the sole oxidant. This catalytic system provided unique selectivity for N-Boc amines in good yields. More significantly, gram-scale preparation of medicinally important N-Boc amine intermediates was successfully implement, which demonstrated a potential application prospect in industrial syntheses. Furthermore, this approach also showed good compatibility with tertiary and other useful alcohols. Investigations of the mechanisms revealed that gold catalyzed the reaction and copper acted as electron transfer mediator in the catalytic cycle.
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Affiliation(s)
- Yanwei Cao
- Department of Chemistry, Fudan University, Shanghai, 200438, P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation (OSSO), Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences (CAS), Lanzhou, 730000, P. R. China
| | - Yang Huang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation (OSSO), Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences (CAS), Lanzhou, 730000, P. R. China
| | - Lin He
- State Key Laboratory for Oxo Synthesis and Selective Oxidation (OSSO), Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences (CAS), Lanzhou, 730000, P. R. China
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Johnson A, Gimeno MC. Yldiide Ligands as Building Blocks for Polynuclear Coinage Metal Complexes: Metal Squares, Triangles and Chains. Chemistry 2020; 26:11256-11265. [PMID: 32216131 DOI: 10.1002/chem.202001022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Indexed: 01/16/2023]
Abstract
Yldiides have unique electronic properties and donor abilities, but as ligands in transition metal complexes they are scarcely represented in the literature. Here, the controlled synthesis of a series of polynuclear gold yldiide complexes derived from triphenyl(cyanomethyl)phosphonium bromide, [Ph3 PCH2 CN]Br, under mild conditions is described. Anionic dinuclear NBu4 [(AuX)2 {C(CN)PPh3 }] (X=Cl, C6 F5 ) or trinuclear derivatives NBu4 [Au3 X2 {C(CN)PPh3 }] bearing terminal chloride or pentafluorophenyl groups and bridging yldiide ligands have been prepared. These compounds evolve in solution giving rise to the formation of an unprecedented tetrameric gold cluster, [Au4 {C(CN)PPh3 }4 ], by the loss of the gold complex NBu4 [AuX2 ]. This gold cluster can also be prepared in high yield by a transmetalation reaction from the analogous tetrameric silver cluster, and two geometric isomers have been characterised, their formation dependent on the synthetic route. The triphenylphosphonium cyanomethyldiide ligand has also been used to build different dinuclear and trinuclear cationic complexes bearing phosphine or diphosphine ancillary ligands and bridging yldiide moieties. Further coordination through the cyano group of the yldiide ligand gives heterometallic trinuclear or pentanuclear derivatives. Structural characterisation of many of these compounds reveals the presence of complex molecular systems stabilised by gold⋅⋅⋅gold interactions and bridging yldiide ligands.
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Affiliation(s)
- Alice Johnson
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - M Concepción Gimeno
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna 12, 50009, Zaragoza, Spain
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Pei X, Pereira A, Smirnova ES, Echavarren AM. Small Gold(I) and Gold(I)-Silver(I) Clusters by C-Si Auration. Chemistry 2020; 26:7309-7313. [PMID: 32236985 PMCID: PMC7317441 DOI: 10.1002/chem.202001509] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Indexed: 11/18/2022]
Abstract
Auration of o-trimethylsilyl arylphosphines leads to the formation of gold and gold-silver clusters with ortho-metalated phosphines displaying 3c-2e Au-C-M bonds (M=Au/Ag). Hexagold clusters [Au6 L4 ](X)2 are obtained by reaction of (L-TMS)AuCl with AgX, whereas reaction with AgX and Ag2 O leads to gold-silver clusters [Au4 Ag2 L4 ](X)2 . Oxo-trigold(I) species [Au3 O]+ were identified as the intermediates in the formation of the silver-doped clusters. Other [Au5 ], [Au4 Ag], and [Au12 Ag4 ] clusters were also obtained. Clusters containing PAu-Au-AuP structural motif display good catalytic activity in the activation of alkynes under homogeneous conditions.
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Affiliation(s)
- Xiao‐Li Pei
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i VirgiliC/ Marcel⋅li Domingo s/n43007TarragonaSpain
| | - Ana Pereira
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i VirgiliC/ Marcel⋅li Domingo s/n43007TarragonaSpain
| | - Ekaterina S. Smirnova
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i VirgiliC/ Marcel⋅li Domingo s/n43007TarragonaSpain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i VirgiliC/ Marcel⋅li Domingo s/n43007TarragonaSpain
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Cao Y, Yang J, Deng Y, Wang S, Liu Q, Shen C, Lu W, Che C, Chen Y, He L. Amine‐Responsive Disassembly of Au
I
–Cu
I
Double Salts for Oxidative Carbonylation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yanwei Cao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation (OSSO)Suzhou Research Institute of LICPLanzhou Institute of Chemical Physics (LICP)Chinese Academy of Sciences (CAS) Lanzhou 730000 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Jian‐Gong Yang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New MaterialsTechnical Institute of Physics and Chemistry, CAS Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yi Deng
- The Institute for Advanced StudiesCollege of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Shengchun Wang
- The Institute for Advanced StudiesCollege of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Qi Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New MaterialsTechnical Institute of Physics and Chemistry, CAS Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Chaoren Shen
- State Key Laboratory for Oxo Synthesis and Selective Oxidation (OSSO)Suzhou Research Institute of LICPLanzhou Institute of Chemical Physics (LICP)Chinese Academy of Sciences (CAS) Lanzhou 730000 China
| | - Wei Lu
- Department of ChemistrySouth University of Science and Technology of China Shenzhen Guangdong 518055 China
| | - Chi‐Ming Che
- State Key Laboratory of Synthetic Chemistry & Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Yong Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New MaterialsTechnical Institute of Physics and Chemistry, CAS Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Lin He
- State Key Laboratory for Oxo Synthesis and Selective Oxidation (OSSO)Suzhou Research Institute of LICPLanzhou Institute of Chemical Physics (LICP)Chinese Academy of Sciences (CAS) Lanzhou 730000 China
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Cao Y, Yang J, Deng Y, Wang S, Liu Q, Shen C, Lu W, Che C, Chen Y, He L. Amine‐Responsive Disassembly of Au
I
–Cu
I
Double Salts for Oxidative Carbonylation. Angew Chem Int Ed Engl 2020; 59:2080-2084. [DOI: 10.1002/anie.201914089] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Yanwei Cao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation (OSSO)Suzhou Research Institute of LICPLanzhou Institute of Chemical Physics (LICP)Chinese Academy of Sciences (CAS) Lanzhou 730000 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Jian‐Gong Yang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New MaterialsTechnical Institute of Physics and Chemistry, CAS Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yi Deng
- The Institute for Advanced StudiesCollege of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Shengchun Wang
- The Institute for Advanced StudiesCollege of Chemistry and Molecular SciencesWuhan University Wuhan 430072 China
| | - Qi Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New MaterialsTechnical Institute of Physics and Chemistry, CAS Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Chaoren Shen
- State Key Laboratory for Oxo Synthesis and Selective Oxidation (OSSO)Suzhou Research Institute of LICPLanzhou Institute of Chemical Physics (LICP)Chinese Academy of Sciences (CAS) Lanzhou 730000 China
| | - Wei Lu
- Department of ChemistrySouth University of Science and Technology of China Shenzhen Guangdong 518055 China
| | - Chi‐Ming Che
- State Key Laboratory of Synthetic Chemistry & Department of ChemistryThe University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Yong Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New MaterialsTechnical Institute of Physics and Chemistry, CAS Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Lin He
- State Key Laboratory for Oxo Synthesis and Selective Oxidation (OSSO)Suzhou Research Institute of LICPLanzhou Institute of Chemical Physics (LICP)Chinese Academy of Sciences (CAS) Lanzhou 730000 China
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Jiang L, Liu B, Zhao HW, Tian JL, Liu X, Yan SP. Compartmental ligand approach for constructing 3d–4f heterometallic [CuII5LnIII2] clusters: synthesis and magnetostructural properties. CrystEngComm 2017. [DOI: 10.1039/c6ce02519f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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