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Mihara N, Shimamura T, Takayama R, Shiga T, Nihei M. Structural Conversion of Supramolecular Assembly in Solution by Thermally Induced Intramolecular Electron Transfer of [Co 2 Fe 2 ] Complex. Chemistry 2023; 29:e202300954. [PMID: 37208296 DOI: 10.1002/chem.202300954] [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: 03/26/2023] [Revised: 05/18/2023] [Accepted: 05/19/2023] [Indexed: 05/21/2023]
Abstract
Combining metal complexes with amphiphilic molecules leads to a wide variety of functional self-assembled nanostructures. Metal complexes exhibiting spin transitions can be good candidates as the trigger to cause structural conversion of such assembly because they respond to various external stimuli. In this work, we studied a structural conversion of a supramolecular assembly containing a [Co2 Fe2 ] complex through a thermally induced electron transfer-coupled spin transition (ETCST). With an amphiphilic anion, the [Co2 Fe2 ] complex formed reverse vesicles in solution and showed thermal ETCST. In contrast, thermal ETCST in the presence of a bridging hydrogen-bond donor caused structural conversion from the reverse vesicle structure to entangled one-dimensional chains through hydrogen bond formation.
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Affiliation(s)
- Nozomi Mihara
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tennodai1-1-1, 305-8577, Tsukuba, Ibaraki, Japan
| | - Tomonari Shimamura
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tennodai1-1-1, 305-8577, Tsukuba, Ibaraki, Japan
| | - Ryo Takayama
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tennodai1-1-1, 305-8577, Tsukuba, Ibaraki, Japan
| | - Takuya Shiga
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tennodai1-1-1, 305-8577, Tsukuba, Ibaraki, Japan
| | - Masayuki Nihei
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, Tennodai1-1-1, 305-8577, Tsukuba, Ibaraki, Japan
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Ahoulou S, Vilà N, Pillet S, Schaniel D, Walcarius A. Non‐covalent Immobilization of Iron‐triazole (Fe(Htrz)
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) Molecular Mediator in Mesoporous Silica Films for the Electrochemical Detection of Hydrogen Peroxide. ELECTROANAL 2019. [DOI: 10.1002/elan.201900444] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Samuel Ahoulou
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR7564 CNRS –Université de Lorraine 405 rue de Vandoeuvre 54600 Villers-les-Nancy France
- Université de Lorraine, CNRS, CRM2 UMR7036 54000 Nancy France
| | - Neus Vilà
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR7564 CNRS –Université de Lorraine 405 rue de Vandoeuvre 54600 Villers-les-Nancy France
| | | | | | - Alain Walcarius
- Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), UMR7564 CNRS –Université de Lorraine 405 rue de Vandoeuvre 54600 Villers-les-Nancy France
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Nagatomi H, Yanai N, Kimizuka N. Reentrant Gel–Sol–Gel Transition of a Lipophilic Co(II) Coordination Polymer. CHEM LETT 2018. [DOI: 10.1246/cl.170881] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hisanori Nagatomi
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Nobuhiro Yanai
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Molecular Systems, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Nobuo Kimizuka
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Molecular Systems, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
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Mitsumoto K, Cameron JM, Wei RJ, Nishikawa H, Shiga T, Nihei M, Newton GN, Oshio H. A Multi-Redox Responsive Cyanometalate-Based Metallogel. Chemistry 2017; 23:1502-1506. [DOI: 10.1002/chem.201605542] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Indexed: 12/24/2022]
Affiliation(s)
- Kiyotaka Mitsumoto
- Graduate School of Pure and Applied Sciences; University of Tsukuba; Tennodai 1-1-1 Tsukuba 305-8571 Japan
| | - Jamie M. Cameron
- Graduate School of Pure and Applied Sciences; University of Tsukuba; Tennodai 1-1-1 Tsukuba 305-8571 Japan
| | - Rong-Jia Wei
- Graduate School of Pure and Applied Sciences; University of Tsukuba; Tennodai 1-1-1 Tsukuba 305-8571 Japan
| | - Hiroyuki Nishikawa
- Department of Chemistry, Faculty of Science; Ibaraki University; 2-1-1 Bunkyo, Mito Ibaraki 310-8371 Japan
| | - Takuya Shiga
- Graduate School of Pure and Applied Sciences; University of Tsukuba; Tennodai 1-1-1 Tsukuba 305-8571 Japan
| | - Masayuki Nihei
- Graduate School of Pure and Applied Sciences; University of Tsukuba; Tennodai 1-1-1 Tsukuba 305-8571 Japan
| | - Graham N. Newton
- Graduate School of Pure and Applied Sciences; University of Tsukuba; Tennodai 1-1-1 Tsukuba 305-8571 Japan
- School of Chemistry; University of Nottingham; University Park Nottingham Nottingham NG7 2RD UK
| | - Hiroki Oshio
- Graduate School of Pure and Applied Sciences; University of Tsukuba; Tennodai 1-1-1 Tsukuba 305-8571 Japan
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Kuroiwa K, Masaki Y, Koga Y, Deming TJ. Self-assembly of discrete metal complexes in aqueous solution via block copolypeptide amphiphiles. Int J Mol Sci 2013; 14:2022-35. [PMID: 23337202 PMCID: PMC3565363 DOI: 10.3390/ijms14012022] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 01/09/2013] [Accepted: 01/17/2013] [Indexed: 11/29/2022] Open
Abstract
The integration of discrete metal complexes has been attracting significant interest due to the potential of these materials for soft metal-metal interactions and supramolecular assembly. Additionally, block copolypeptide amphiphiles have been investigated concerning their capacity for self-assembly into structures such as nanoparticles, nanosheets and nanofibers. In this study, we combined these two concepts by investigating the self-assembly of discrete metal complexes in aqueous solution using block copolypeptides. Normally, discrete metal complexes such as [Au(CN)(2)]-, when molecularly dispersed in water, cannot interact with one another. Our results demonstrated, however, that the addition of block copolypeptide amphiphiles such as K(183)L(19) to [Au(CN)(2)]- solutions induced one-dimensional integration of the discrete metal complex, resulting in photoluminescence originating from multinuclear complexes with metal-metal interactions. Transmission electron microscopy (TEM) showed a fibrous nanostructure with lengths and widths of approximately 100 and 20 nm, respectively, which grew to form advanced nanoarchitectures, including those resembling the weave patterns of Waraji (traditional Japanese straw sandals). This concept of combining block copolypeptide amphiphiles with discrete coordination compounds allows the design of flexible and functional supramolecular coordination systems in water.
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Affiliation(s)
- Keita Kuroiwa
- Department of Nanoscience, Faculty of Engineering, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan; E-Mails: (Y.M.); (Y.K.)
| | - Yoshitaka Masaki
- Department of Nanoscience, Faculty of Engineering, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan; E-Mails: (Y.M.); (Y.K.)
| | - Yuko Koga
- Department of Nanoscience, Faculty of Engineering, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan; E-Mails: (Y.M.); (Y.K.)
| | - Timothy J. Deming
- Department of Bioengineering, University of California, Los Angeles, CA 90095, USA; E-Mail:
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Self-assembly and functionalization of lipophilic metal-triazole complexes in various media. Polym J 2012. [DOI: 10.1038/pj.2012.142] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kuwahara R, Fujikawa S, Kuroiwa K, Kimizuka N. Controlled polymerization and self-assembly of halogen-bridged diruthenium complexes in organic media and their dielectrophoretic alignment. J Am Chem Soc 2012; 134:1192-9. [PMID: 22224659 DOI: 10.1021/ja208958t] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Lipophilic paddlewheel biruthenium complexes [Ru(2)(μ-O(2)CR)(3)X](n) (O(2)CR = 3,4,5-tridodecyloxybenzoate, X = Cl, I) self-assemble in organic media to form halogen-bridged coordination polymers. The polymerization is accompanied by spectral changes in π(RuO,Ru(2)) → π*(Ru(2)) and π(axial ligand) → π*(Ru(2)) absorption bands. These polymeric complexes form lyotropic liquid crystals in n-decane at concentrations above ~100 unit mM. The bridging halogen axial ligands (X = Cl or I) exert significant influences on their electronic structures and self-assembling characteristics: the chloride-bridged polymers give hexagonally aligned ordered columnar structure (columnar hexagonal phase, Col(h)), whereas the iodide-bridged polymers form less ordered columnar nematic (Col(n)) phase, as revealed by small-angle X-ray diffraction measurements. Chloro-bridged coordination polymers dispersed in n-decane are thermally intact even at the elevated temperature of 70 °C. In contrast, iodo-bridged polymers show reversible dissociation and reassembly phenomena depending on temperature. These halogen-bridged coordination polymers show unidirectional alignment upon applying alternating current (ac) electric field as investigated by crossed polarizing optical microscopy and scanning electron microscopy. The unidirectionally oriented columns of chloro-bridged polymers are accumulated upon repetitive application of the ac voltage, whereas iodo-bridged coordination polymers show faster and reversible alignment changes in response to turning on-and-off the electric field. The controlled self-assembly of electronically conjugated linear complexes provide a potential platform to design electric field-responsive nanomaterials.
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Affiliation(s)
- Rempei Kuwahara
- Department of Chemistry and Biochemistry, Graduate School of Engineering, International Research Center for Molecular Systems (IRCMS), Kyushu University, 744 Moto-oka, Fukuoka 819-0395, Japan
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