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Agafonov MA, Alexandrov EV, Artyukhova NA, Bekmukhamedov GE, Blatov VA, Butova VV, Gayfulin YM, Garibyan AA, Gafurov ZN, Gorbunova YG, Gordeeva LG, Gruzdev MS, Gusev AN, Denisov GL, Dybtsev DN, Enakieva YY, Kagilev AA, Kantyukov AO, Kiskin MA, Kovalenko KA, Kolker AM, Kolokolov DI, Litvinova YM, Lysova AA, Maksimchuk NV, Mironov YV, Nelyubina YV, Novikov VV, Ovcharenko VI, Piskunov AV, Polyukhov DM, Polyakov VA, Ponomareva VG, Poryvaev AS, Romanenko GV, Soldatov AV, Solovyeva MV, Stepanov AG, Terekhova IV, Trofimova OY, Fedin VP, Fedin MV, Kholdeeva OA, Tsivadze AY, Chervonova UV, Cherevko AI, Shul′gin VF, Shutova ES, Yakhvarov DG. METAL-ORGANIC FRAMEWORKS IN RUSSIA: FROM THE SYNTHESIS AND STRUCTURE TO FUNCTIONAL PROPERTIES AND MATERIALS. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622050018] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Zhou X, Sterbinsky GE, Wasim E, Chen L, Tait SL. Tuning Ligand-Coordinated Single Metal Atoms on TiO 2 and their Dynamic Response during Hydrogenation Catalysis. ChemSusChem 2021; 14:3825-3837. [PMID: 33955201 DOI: 10.1002/cssc.202100208] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 05/04/2021] [Indexed: 06/12/2023]
Abstract
Ligand-coordinated supported catalysts (LCSCs) are of growing interest for heterogeneous single-atom catalysis. Here, the effect of the choice of organic ligand on the activity and stability of TiO2 -supported single-atom Pt-ligand catalysts was investigated for ethylene hydrogenation. The activity of these catalysts showed a significant dependence on the choice of ligand and also correlated with coordination number for Pt-ligand and Pt-Cl- . Of the three ligands examined in this study, the one with the lowest Pt coordination number, 1,10-phenanthroline-5,6-dione (PDO), showed the lowest reaction temperature and highest reaction rate, likely due to those metal sites being more accessible to reactant adsorption. In-situ X-ray absorption spectroscopy (XAS) experiments showed that the activity also correlated with good heterolytic dissociation of hydrogen, which was supported by OH/OD exchange experiments and was the rate-determining step of the hydrogenation reaction. In these in-situ XAS experiments up to 190 °C, the supported Pt-ligand catalyst showed excellent stability against structural and chemical change. Instead of Pt, the PDO ligand could be coordinated with Ir on TiO2 to form Ir LCSCs that showed slow activation by loss of Ir-Cl bonds, then excellent stability in the hydrogenation of ethylene. These results provide the chance to engineer ligand-coordinated supported catalysts at the single-atom catalyst level by the choice of ligand and enable new applications at relatively high temperature.
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Affiliation(s)
- Xuemei Zhou
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, Indiana, 47405, USA
- School of Chemical Engineering, Sichuan University No. 24 South Section 1, Yihuan Road, Chengdu, 610065, P. R. China
| | - George E Sterbinsky
- Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Ave., Lemont, Illinois, 60439, USA
| | - Eman Wasim
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, Indiana, 47405, USA
| | - Linxiao Chen
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, Indiana, 47405, USA
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington, 99352, USA
| | - Steven L Tait
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, Indiana, 47405, USA
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Otero C, Carreño A, Polanco R, Llancalahuen FM, Arratia-Pérez R, Gacitúa M, Fuentes JA. Rhenium (I) Complexes as Probes for Prokaryotic and Fungal Cells by Fluorescence Microscopy: Do Ligands Matter? Front Chem 2019; 7:454. [PMID: 31297366 PMCID: PMC6606945 DOI: 10.3389/fchem.2019.00454] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 06/07/2019] [Indexed: 12/22/2022] Open
Abstract
Re(I) complexes have exposed highly suitable properties for cellular imaging (especially for fluorescent microscopy) such as low cytotoxicity, good cellular uptake, and differential staining. These features can be modulated or tuned by modifying the ligands surrounding the metal core. However, most of Re(I)-based complexes have been tested for non-walled cells, such as epithelial cells. In this context, it has been proposed that Re(I) complexes are inefficient to stain walled cells (i.e., cells protected by a rigid cell wall, such as bacteria and fungi), presumably due to this physical barrier hampering cellular uptake. More recently, a series of studies have been published showing that a suitable combination of ligands is useful for obtaining Re(I)-based complexes able to stain walled cells. This review summarizes the main characteristics of different fluorophores used in bioimage, remarking the advantages of d6-based complexes, and focusing on Re(I) complexes. In addition, we explored different structural features of these complexes that allow for obtaining fluorophores especially designed for walled cells (bacteria and fungi), with especial emphasis on the ligand choice. Since many pathogens correspond to bacteria and fungi (yeasts and molds), and considering that these organisms have been increasingly used in several biotechnological applications, development of new tools for their study, such as the design of new fluorophores, is fundamental and attractive.
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Affiliation(s)
- Carolina Otero
- Facultad de Medicina, Escuela de Química y Farmacia, Universidad Andres Bello, Santiago, Chile
| | - Alexander Carreño
- Center for Applied Nanosciences (CANS), Universidad Andres Bello, Santiago, Chile
| | - Rubén Polanco
- Facultad de Ciencias de la Vida, Centro de Biotecnología Vegetal, Universidad Andres Bello, Santiago, Chile
| | - Felipe M Llancalahuen
- Facultad de Medicina, Escuela de Química y Farmacia, Universidad Andres Bello, Santiago, Chile
| | - Ramiro Arratia-Pérez
- Center for Applied Nanosciences (CANS), Universidad Andres Bello, Santiago, Chile
| | - Manuel Gacitúa
- Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Santiago, Chile
| | - Juan A Fuentes
- Laboratorio de Genética y Patogénesis Bacteriana, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
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Sun CY, To WP, Hung FF, Wang XL, Su ZM, Che CM. Metal-organic framework composites with luminescent pincer platinum(ii) complexes: 3MMLCT emission and photoinduced dehydrogenation catalysis. Chem Sci 2018; 9:2357-2364. [PMID: 29719708 PMCID: PMC5897847 DOI: 10.1039/c7sc04528j] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 01/18/2018] [Indexed: 11/21/2022] Open
Abstract
Pincer platinum(ii) complexes are well documented to exhibit weak intermolecular interactions in the solid state and 77 K glassy solutions, leading to emissive triplet metal-metal-to-ligand charge transfer (3MMLCT) excited states that often vanish in dilute solutions. In this work, metal-organic framework (MOF) materials are introduced to provide a "solid solution" environment for easy access to 3MMLCT excited states of pincer platinum(ii) complexes. Phosphorescent composites PtII@MOFs (1-4) with matrix-dependent monomers and oligomer emission properties were obtained. These PtII@MOFs are efficient catalysts for photoinduced dehydrogenation reactions.
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Affiliation(s)
- Chun-Yi Sun
- State Key Laboratory of Synthetic Chemistry , Institute of Molecular Functional Materials , HKU-CAS Joint Laboratory on New Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China .
- Department of Chemistry , Northeast Normal University , Changchun , Jilin , 130024 China
| | - Wai-Pong To
- State Key Laboratory of Synthetic Chemistry , Institute of Molecular Functional Materials , HKU-CAS Joint Laboratory on New Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China .
| | - Faan-Fung Hung
- State Key Laboratory of Synthetic Chemistry , Institute of Molecular Functional Materials , HKU-CAS Joint Laboratory on New Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China .
| | - Xin-Long Wang
- Department of Chemistry , Northeast Normal University , Changchun , Jilin , 130024 China
| | - Zhong-Min Su
- Department of Chemistry , Northeast Normal University , Changchun , Jilin , 130024 China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry , Institute of Molecular Functional Materials , HKU-CAS Joint Laboratory on New Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China .
- HKU Shenzhen Institute of Research and Innovation , Shenzhen , Guangdong 518053 , China
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Mehmandoust MR, Motakef-Kazemi N, Ashouri F. Nitrate Adsorption from Aqueous Solution by Metal–Organic Framework MOF-5. Iran J Sci Technol Trans Sci 2018. [DOI: 10.1007/s40995-017-0423-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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