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Mobili R, Preda G, Dondi D, Monzani E, Vadivel D, Massera C, Pasini D, Amendola V. Triptycene-based diiron(II) mesocates: spin-crossover in solution. Chem Commun (Camb) 2024; 60:5522-5525. [PMID: 38695185 DOI: 10.1039/d4cc00812j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Triptycene-based diiron(II) and dizinc(II) mesocates were obtained using a novel rigid ligand with two pyridylbenzimidazole chelating units fused into the triptycene scaffold. Studies on the diiron(II) assembly in solution showed that the complex undergoes thermal-induced one-step spin-crossover with T1/2 at 243 K (Evans method).
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Affiliation(s)
- Riccardo Mobili
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100 Pavia, Italy. valeria.amendola@unipv
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 4 Place Jussieu, Paris, France.
| | - Giovanni Preda
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100 Pavia, Italy. valeria.amendola@unipv
| | - Daniele Dondi
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100 Pavia, Italy. valeria.amendola@unipv
| | - Enrico Monzani
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100 Pavia, Italy. valeria.amendola@unipv
| | - Dhanalakshmi Vadivel
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100 Pavia, Italy. valeria.amendola@unipv
| | - Chiara Massera
- Department of Chemistry, Life Science and Environmental Sustainability University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
| | - Dario Pasini
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100 Pavia, Italy. valeria.amendola@unipv
| | - Valeria Amendola
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100 Pavia, Italy. valeria.amendola@unipv
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2
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Zhao H, Wijerathna AMSD, Dong Q, Bai Q, Jiang Z, Yuan J, Wang J, Chen M, Zirnheld M, Li R, Liu D, Wang P, Zhang Y, Li Y. Adjusting the Architecture of Heptagonal Metallo-Macrocycles by Embedding Metal Nodes into the Backbone. Angew Chem Int Ed Engl 2024; 63:e202318029. [PMID: 38087428 DOI: 10.1002/anie.202318029] [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: 11/25/2023] [Indexed: 12/30/2023]
Abstract
Coordination-driven self-assembly has been extensively employed for the bottom-up construction of discrete metallo-macrocycles. However, the prevalent use of benzene rings as the backbone limits the formation of large metallo-macrocycles with more than six edges. Herein, by embedding metal nodes into the ligand backbone, we successfully regulated the ligand arm angle and assembled two giant heptagonal metallo-macrocycles with precise control. The angle between two arms at position 4 of the central terpyridine (tpy) extended after complexation with metal ions, leading to ring expansion of the metallo-macrocycle. The assembled structures were straightforwardly identified through multi-dimensional NMR spectroscopy (1 H, COSY, NOESY), multidimensional mass spectrometry analysis (ESI-MS and TWIM-MS), transmission electron microscopy (TEM), as well as scanning tunneling microscopy (STM). In addition, the catalytic performances of metallo-macrocycles in the oxidation of thioanisole were studied, with both supramolecules exhibiting good conversion rates. Furthermore, fiber-like nanostructures were observed from single-molecule heptagons by hierarchical self-assembly.
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Affiliation(s)
- He Zhao
- Department of Organic and Polymer Chemistry, Hunan Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | | | - Qiangqiang Dong
- Department of Organic and Polymer Chemistry, Hunan Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Qixia Bai
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou, 510006, China
| | - Zhiyuan Jiang
- Department of Organic and Polymer Chemistry, Hunan Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Jie Yuan
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Jun Wang
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou, 510006, China
| | - Mingzhao Chen
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou, 510006, China
| | - Markus Zirnheld
- Department of Physics, Old Dominion University, Norfolk, VA 23529, USA
| | - Rockwell Li
- Department of Physics, Old Dominion University, Norfolk, VA 23529, USA
| | - Die Liu
- Department of Organic and Polymer Chemistry, Hunan Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
| | - Pingshan Wang
- Department of Organic and Polymer Chemistry, Hunan Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
- Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou Key Laboratory for Clean Energy and Materials, Guangzhou University, Guangzhou, 510006, China
| | - Yuan Zhang
- Department of Physics, Old Dominion University, Norfolk, VA 23529, USA
| | - Yiming Li
- Department of Organic and Polymer Chemistry, Hunan Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, 410083, China
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Zhou MY, Yu ZS, Deng W, Lu HL, Niu XF, Tong J, Yu SY, Fujita M. [M 8L 4] 8+-Type Squares Self-Assembled by Dipalladium Corners and Bridging Aromatic Dipyrazole Ligands for Iodine Capture. Inorg Chem 2023. [PMID: 37320970 DOI: 10.1021/acs.inorgchem.3c00893] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Square-like metallamacrocyclic palladium(II) complexes [M8L4]8+ (1-7) were synthesized by reacting aromatic dipyrazole ligands (H2L1-H2L3 with pyromellitic arylimide-, 1,4,5,8-naphthalenetetracarboxylic arylimide-, and anthracene-based aromatic groups, respectively) with dipalladium corners ([(bpy)2Pd2(NO3)2](NO3)2, [(dmbpy)2Pd2(NO3)2](NO3)2, or [(phen)2Pd2(NO3)2](NO3)2, where bpy = 2,2'-bipyridine, dmbpy = 4,4'-dimethyl-2,2'-bipyridine, and phen = 1,10-phenanthroline) in aqueous solutions via metal-directed self-assembly. Metallamacrocycles 1-7 were fully characterized by 1H and 13C nuclear magnetic resonance spectroscopy and electrospray ionization mass spectrometry, and the square structure of 7·8NO3- was further confirmed via single crystal X-ray diffraction. These square-like metallamacrocycles exhibit effective performance for iodine adsorption.
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Affiliation(s)
- Meng-Ying Zhou
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Zheng-Su Yu
- Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Wei Deng
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Hong-Lin Lu
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Xiao-Fei Niu
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Jin Tong
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Shu-Yan Yu
- Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Makoto Fujita
- Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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4
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Domoto Y, Fujita M. Self-assembly of nanostructures with high complexity based on metal⋯unsaturated-bond coordination. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214605] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Woźny M, Mames A, Ratajczyk T. Triptycene Derivatives: From Their Synthesis to Their Unique Properties. Molecules 2021; 27:250. [PMID: 35011478 PMCID: PMC8746337 DOI: 10.3390/molecules27010250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/27/2021] [Accepted: 12/28/2021] [Indexed: 11/17/2022] Open
Abstract
Since the first preparation of triptycene, great progress has been made with respect to its synthesis and the understanding of its properties. Interest in triptycene-based systems is intense; in recent years, advances in the synthetic methodology and properties of new triptycenes have been reported by researchers from various fields of science. Here, an account of these new developments is given and placed in reference to earlier pivotal works that underpin the field. First, we discuss new approaches to the synthesis of new triptycenes. Progress in the regioselective synthesis of sterically demanding systems is discussed. The application of triptycenes in catalysis is also presented. Next, progress in the understanding of the relations between triptycene structures and their properties is discussed. The unique properties of triptycenes in the liquid and solid states are elaborated. Unique interactions, which involve triptycene molecular scaffolds, are presented. Molecular interactions within a triptycene unit, as well as between triptycenes or triptycenes and other molecules, are also evaluated. In particular, the summary of the synthesis and useful features will be helpful to researchers who are using triptycenes as building blocks in the chemical and materials sciences.
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Affiliation(s)
- Mateusz Woźny
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Adam Mames
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Tomasz Ratajczyk
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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6
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Omoto K, Tashiro S, Shionoya M. Phase-Dependent Reactivity and Host-Guest Behaviors of a Metallo-Macrocycle in Liquid and Solid-State Photosensitized Oxygenation Reactions. J Am Chem Soc 2021; 143:5406-5412. [PMID: 33645968 DOI: 10.1021/jacs.0c13338] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The photochemical oxygenation reactions of a host-guest complex, pCp⊂[Ag2L0](SbF6)2 (pCp = [2.2]paracyclophane) have been investigated in solution and in the solid state, using the macrocyclic ligand L0 having four anthracene moieties in the framework. As a result, it was found that the reactivity and host-guest functions show remarkable phase dependence. In solution, the photosensitized oxygenation of all the anthracene moieties of L0 resulted in a fully oxygenated macrocycle [Ag2L4](SbF6)2 as the final product, while simultaneously the guest molecule was dissociated from the macrocyclic cavity. On the other hand, in an amorphous solid of pCp⊂[Ag2L0](SbF6)2 prepared by decomposing single crystals through the removal of the crystalline solvent, the oxygenated site of L0 was significantly controlled to provide a site-selectively oxygenated inclusion complex, pCp⊂[Ag2L1](SbF6)2, possessing a mono-oxygenated Cs-symmetrical macrocyclic skeleton.
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Affiliation(s)
- Kenichiro Omoto
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0003, Japan
| | - Shohei Tashiro
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0003, Japan
| | - Mitsuhiko Shionoya
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0003, Japan
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7
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Wang Z, Ashafaq M, Lu YF, Feng L, Kurmoo M, Liu H, Gao ZY, Li YW, Sun D. Silica-Organometallic One-Dimensional Hybrid Employing a Ag-π C═C Bond Connecting Alternating Ag 4(NO 3) 4 and Octavinylsilsesquioxane. Inorg Chem 2021; 60:2899-2904. [PMID: 33591171 DOI: 10.1021/acs.inorgchem.1c00160] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Layering AgNO3 in alcohol onto octavinylsilsesquioxane (OVS) in CHCl3 results in a one-dimensional coordination polymer, {Ag4(NO3)4(OVS)·solvents}n (SD/Ag4a-d), consisting of unprecedented flat weakly bonded Ag4(NO3)4 alternating with the firmly covalent OVS through AgI-πC═C bonds. The preferential assembling medium for SD/Ag4a is proven to be alcohols, where a 4:1 silver-OVS adduct is detected by electrospray ionization mass spectrometry. The present outcomes may assist our knowledge of particular interactions for supramolecular architectures of a polynuclear silver system built from OVS containing eight pendent olefin tails.
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Affiliation(s)
- Zhi Wang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan 250100, People's Republic of China
| | - Mo Ashafaq
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India
| | - Yu-Fan Lu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan 250100, People's Republic of China
| | - Lei Feng
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan 250100, People's Republic of China
| | - Mohamedally Kurmoo
- Institut de Chimie de Strasbourg, Université Strasbourg, CNRS, UMR 7177, 4 rue Blaise Pascal, 67008 Strasbourg, Cedex, France
| | - Hongzhi Liu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan 250100, People's Republic of China
| | - Zhi-Yong Gao
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Henan Xinxiang 453007, People's Republic of China
| | - Yun-Wu Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, and School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China
| | - Di Sun
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Ji'nan 250100, People's Republic of China
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Nie H, Li QH, Zhang S, Wang CM, Lin WH, Deng K, Shu LJ, Zeng QD, Wan JH. Figure-eight arylene ethynylene macrocycles: facile synthesis and specific binding behavior toward Hg 2+. Org Chem Front 2021. [DOI: 10.1039/d1qo00812a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two figure-eight arylene ethynylene macrocycles (AEMs) were synthesized from non-helical precursors and the figure-eight shape was clearly imaged by STM.
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Affiliation(s)
- Hui Nie
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 310012, P. R. China
| | - Qian-Hui Li
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 310012, P. R. China
| | - Siqi Zhang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, P. R. China
| | - Chuan-Ming Wang
- Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai, 201208, P. R. China
| | - Wen-Hui Lin
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 310012, P. R. China
| | - Ke Deng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, P. R. China
| | - Li-Jin Shu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 310012, P. R. China
| | - Qing-Dao Zeng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, P. R. China
| | - Jun-Hua Wan
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 310012, P. R. China
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Lee E, Okazaki C, Ju H, Tenma H, Ikeda M, Kuwahara S, Habata Y. 1H NMR Study of a Chiral Argentivorous Molecule/Ag+ Complex: Assignment of Proton Signals of Four Aromatic Rings with Slightly Different Environments. Inorg Chem 2020; 59:18444-18451. [DOI: 10.1021/acs.inorgchem.0c03109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Eunji Lee
- Department of Chemistry, Gangneung-Wonju National University, Gangneung 25457, South Korea
| | | | | | | | - Mari Ikeda
- Education Center, Faculty of Engineering, Chiba Institute of Technology, 2-1-1 Shibazono, Narashino, Chiba 275-0023, Japan
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Tashiro S, Shimizu S, Kuritani M, Shionoya M. Protonation-induced self-assembly of bis-phenanthroline macrocycles into nanofibers arrayed with tetrachloroaurate, hexachloroplatinate or phosphomolybdate ions. Dalton Trans 2020; 49:13948-13953. [PMID: 33047767 DOI: 10.1039/d0dt03287e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
One-dimensional self-assembly of macrocycles is one of the important strategies for constructing fibrous nanomaterials with anisotropic functions such as one-dimensional transport and accumulation of molecules and ions. Herein we report on the synthesis and properties of self-assembled nanofibers using macrocycles to develop a multipurpose template for one-dimensional array of noble metal ions. The nanofibers were prepared by protonation-induced self-assembly of bis-phenanthroline macrocycles, which have enabled the accumulation of some metal-containing anions, such as tetrachloroaurate, hexachloroplatinate and phosphomolybdate. Microscopic observations have demonstrated that the supramolecular nanofibers were reproducibly formed in a similar way, regardless of the structures and charge numbers of the anions. Moreover, the resulting nanofibers, arrayed with several metal ions, were chemically reduced, producing dispersible gold nanoparticles and mixed-valence nanofibers.
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Affiliation(s)
- Shohei Tashiro
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Shun Shimizu
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Masumi Kuritani
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Mitsuhiko Shionoya
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
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Ibáñez S, Peris E. Dimensional Matching versus Induced‐Fit Distortions: Binding Affinities of Planar and Curved Polyaromatic Hydrocarbons with a Tetragold Metallorectangle. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915401] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Susana Ibáñez
- Institute of Advanced Materials (INAM)Universitat Jaume I Av. Vicente Sos Baynat s/n. 12071 Castellón Spain
| | - Eduardo Peris
- Institute of Advanced Materials (INAM)Universitat Jaume I Av. Vicente Sos Baynat s/n. 12071 Castellón Spain
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12
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Ibáñez S, Peris E. Dimensional Matching versus Induced-Fit Distortions: Binding Affinities of Planar and Curved Polyaromatic Hydrocarbons with a Tetragold Metallorectangle. Angew Chem Int Ed Engl 2020; 59:6860-6865. [PMID: 32053282 DOI: 10.1002/anie.201915401] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/24/2020] [Indexed: 11/07/2022]
Abstract
A tetragold(I) rectangle-like metallocage containing two pyrene-bis-imidazolylidene ligands and two carbazolyl-bis-alkynyl linkers is used for the encapsulation of a series of polycyclic aromatic hydrocarbons (PAHs), including corannulene. The binding affinities obtained for the encapsulation of the planar PAHs guests in CD2 Cl2 are found to exponentially increase with the number of π-electrons of the guest (1.3 > logK >6.6). For the bowl-shaped molecule of corannulene, the association constant is much lower than the expected one according to its number of electrons. The molecular structure of the host-guest complex formed with corannulene shows that the molecule of the guest is compressed, while the host is expanded, thus showing an interesting case of artificial mutual induced-fit arrangement.
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Affiliation(s)
- Susana Ibáñez
- Institute of Advanced Materials (INAM), Universitat Jaume I, Av. Vicente Sos Baynat s/n., 12071, Castellón, Spain
| | - Eduardo Peris
- Institute of Advanced Materials (INAM), Universitat Jaume I, Av. Vicente Sos Baynat s/n., 12071, Castellón, Spain
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