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Adamovich SN, Nalibayeva AM, Abdikalykov YN, Ushakov IA, Oborina EN, Rozentsveig IB. New Functional Alkoxysilanes and Silatranes: Synthesis, Structure, Properties, and Possible Applications. Int J Mol Sci 2023; 24:13818. [PMID: 37762120 PMCID: PMC10530882 DOI: 10.3390/ijms241813818] [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: 08/11/2023] [Revised: 08/28/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023] Open
Abstract
The aza-Michael reaction of 3-aminopropyltriethoxysilane (1) and -silatrane (2) with acrylates affords functionalized silyl-(3-8) and silatranyl-(9-14) mono- and diadducts with up to a 99% yield. Their structure has been proved with IR and NMR spectroscopies, mass spectrometry and XRD analysis. The hydrolytic homo-condensation of triethoxysilanes 3-5 gives siloxanes 3a-5a, which form complexes with Ag, Cu, and Ni salts. They are also able to adsorb these metals from solutions. The hetero-condensation reaction of silanes 4-8 with OH groups of zeolite (Z), silica gel (S) and glass (G) delivers the modified materials (Z4, S7, G4, G5, G7, G8, etc.), which can adsorb ions of noble metal (Au, Rh, Pd: G4 + Au, G5 + Pd, G7 + Rh). Thus, the synthesized Si-organic polymers and materials turned out to be promising sorbents (enterosorbents) of noble, heavy, toxic metal ions and can be applied in industry, environment, and medicine.
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Affiliation(s)
- Sergey N. Adamovich
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, 664033 Irkutsk, Russia
| | - Arailym M. Nalibayeva
- D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, 142 Kunayev Street, 050010 Almaty, Kazakhstan
| | - Yerlan N. Abdikalykov
- D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, 142 Kunayev Street, 050010 Almaty, Kazakhstan
| | - Igor A. Ushakov
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, 664033 Irkutsk, Russia
| | - Elizaveta N. Oborina
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, 664033 Irkutsk, Russia
| | - Igor B. Rozentsveig
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, 664033 Irkutsk, Russia
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Hayami R, Ideno Y, Sato Y, Tsukagoshi H, Yamamoto K, Gunji T. Soluble ethane-bridged silsesquioxane polymer by hydrolysis–condensation of bis(trimethoxysilyl)ethane: characterization and mixing in organic polymers. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02294-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Shimojima A, Kuroda K. Alkoxy- and Silanol-Functionalized Cage-Type Oligosiloxanes as Molecular Building Blocks to Construct Nanoporous Materials. Molecules 2020; 25:molecules25030524. [PMID: 31991787 PMCID: PMC7038179 DOI: 10.3390/molecules25030524] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 01/22/2020] [Accepted: 01/23/2020] [Indexed: 01/21/2023] Open
Abstract
Siloxane-based materials have a wide range of applications. Cage-type oligosiloxanes have attracted significant attention as molecular building blocks to construct novel siloxane-based nanoporous materials with promising applications such as in catalysis and adsorption. This paper reviews recent progress in the preparation of siloxane-based nanoporous materials using alkoxy- and silanol-functionalized cage siloxanes. The arrangement of cage siloxanes units is controlled by various methods, including amphiphilic self-assembly, hydrogen bonding of silanol groups, and regioselective functionalization, toward the preparation of ordered nanoporous siloxane-based materials.
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Affiliation(s)
- Atsushi Shimojima
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
- Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo 169-0051, Japan
- Correspondence: (A.S.); (K.K.)
| | - Kazuyuki Kuroda
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
- Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo 169-0051, Japan
- Correspondence: (A.S.); (K.K.)
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Sato N, Hayashi T, Tochigi K, Wada H, Shimojima A, Kuroda K. Synthesis of Organosilyl-Functionalized Cage-Type Germanoxanes Containing Fluoride Ions. Chemistry 2019; 25:7860-7865. [PMID: 30817031 DOI: 10.1002/chem.201900439] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Indexed: 11/10/2022]
Abstract
Eight corners of a double-four ring cage-type germanoxane, containing a fluoride ion, were successfully silylated by the combination of chlorosilanes and silazanes. Three different silyl groups, trimethylsilyl, dimethylsilyl, and dimethylvinylsilyl, were attached on the corners of germanoxane cage. The solubility and reactivity of the cage modified with dimethylvinylsilyl groups were significantly increased, allowing for further reaction. Hydrosilylation reaction between dimethylvinylsilylated cage geramanoxanes and dimethylsilylated cage siloxanes afforded porous solids. Functionalization of the corners of germanoxanes with silyl groups should provide valuable building blocks in various functional materials.
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Affiliation(s)
- Naoto Sato
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Taiki Hayashi
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Kazuma Tochigi
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Hiroaki Wada
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Atsushi Shimojima
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Kazuyuki Kuroda
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan.,Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo, 169-0051, Japan
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Sato N, Tochigi K, Kuroda Y, Wada H, Shimojima A, Kuroda K. Synthesis and crystal structure of double-three ring (D3R)-type cage siloxanes modified with dimethylsilanol groups. Dalton Trans 2019; 48:1969-1975. [PMID: 30539183 DOI: 10.1039/c8dt04244f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The controlled assembly of molecular building blocks enables the rational design of nanomaterials. In this study, two types of cage-type oligosiloxanes with double-three ring (D3R) structures are modified with dimethylsilanol groups to form supramolecular assemblies. One is the siloxane cage derived from Si(OEt)4 (denoted as the Q6 cage), and the other is the organosiloxane cage derived from (EtO)3Si-CH2-Si(OEt)3 (denoted as the T6 cage). The syntheses of the silanol-modified cages are performed in two steps: (i) dimethylsilylation of the corner Si-O- groups on the Q6 and T6 cages to introduce Si-H groups and (ii) subsequent oxidation of the Si-H groups to Si-OH groups. Dimethylsilylation of the cages is conducted at much lower temperatures (-94 and -78 °C for Q6 and T6 cages, respectively) than those used for conventional silylation, which is the key to suppressing the deterioration of the unstable D3R structure. The subsequent oxidation of the Si-H groups proceeds successfully, and the crystallization of these molecules is induced by the hydrogen bonds of the silanol groups. The crystal structure of the Q6 cage modified with dimethylsilanol groups can be regarded as a layered structure with tetrahydrofuran between the layers. In contrast, the T6 cage modified with dimethylsilanol groups assembled to form a more densely packed structure with no included solvent molecules. The differences between the crystal structures are discussed in terms of the shape of the cages. The insight into the effect of the shape of the cage on its assembly behavior will lead to the designable synthesis of crystalline siloxane-based materials.
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Affiliation(s)
- Naoto Sato
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan.
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Sato N, Kuroda Y, Wada H, Shimojima A, Kuroda K. Preparation of Siloxane‐Based Microporous Crystals from Hydrogen‐Bonded Molecular Crystals of Cage Siloxanes. Chemistry 2018; 24:17033-17038. [DOI: 10.1002/chem.201804441] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Naoto Sato
- Department of Applied Chemistry Faculty of Science and Engineering Waseda University 3-4-1 Okubo Shinjuku-ku Tokyo 169-8555 Japan
| | - Yoshiyuki Kuroda
- Waseda Institute for Advanced Study Waseda University 1–6-1 Nishiwaseda Shinjuku-ku, Tokyo 169-8050 Japan
- Current address: Green Hydrogen Research Center Yokohama National University 79-5 Tokiwadai, Hodogaya-ku Yokohama 240–8501 Japan
| | - Hiroaki Wada
- Department of Applied Chemistry Faculty of Science and Engineering Waseda University 3-4-1 Okubo Shinjuku-ku Tokyo 169-8555 Japan
| | - Atsushi Shimojima
- Department of Applied Chemistry Faculty of Science and Engineering Waseda University 3-4-1 Okubo Shinjuku-ku Tokyo 169-8555 Japan
| | - Kazuyuki Kuroda
- Department of Applied Chemistry Faculty of Science and Engineering Waseda University 3-4-1 Okubo Shinjuku-ku Tokyo 169-8555 Japan
- Kagami Memorial Research Institute for Materials Science and Technology Waseda University 2-8-26 Nishiwaseda Shinjuku-ku Tokyo 169-0051 Japan
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Feng L, Zhu S, Zhang W, Mei K, Wang H, Feng S. Preparation and Characterization of Functional Alkoxysilanes via Catalyst-Free Aza-Michael Reaction. ChemistrySelect 2017. [DOI: 10.1002/slct.201700492] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Linglong Feng
- Key Laboratory of Special Functional Aggregated Materials; Ministry of Education; School of Chemistry and Chemical Engineering; Shandong University; Jinan 250100 People's Republic of China
| | - Siyu Zhu
- Key Laboratory of Special Functional Aggregated Materials; Ministry of Education; School of Chemistry and Chemical Engineering; Shandong University; Jinan 250100 People's Republic of China
| | - Wenyu Zhang
- Key Laboratory of Special Functional Aggregated Materials; Ministry of Education; School of Chemistry and Chemical Engineering; Shandong University; Jinan 250100 People's Republic of China
| | - Kai Mei
- Key Laboratory of Special Functional Aggregated Materials; Ministry of Education; School of Chemistry and Chemical Engineering; Shandong University; Jinan 250100 People's Republic of China
| | - Hua Wang
- Key Laboratory of Special Functional Aggregated Materials; Ministry of Education; School of Chemistry and Chemical Engineering; Shandong University; Jinan 250100 People's Republic of China
| | - Shengyu Feng
- Key Laboratory of Special Functional Aggregated Materials; Ministry of Education; School of Chemistry and Chemical Engineering; Shandong University; Jinan 250100 People's Republic of China
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Kawahara K, Tachibana H, Hagiwara Y, Kuroda K. A spherosilicate oligomer with eight stable silanol groups as a building block of hybrid materials. NEW J CHEM 2012. [DOI: 10.1039/c2nj20953e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Chaikittisilp W, Sugawara A, Shimojima A, Okubo T. Hybrid Porous Materials with High Surface Area Derived from Bromophenylethenyl-Functionalized Cubic Siloxane-Based Building Units. Chemistry 2010; 16:6006-14. [DOI: 10.1002/chem.201000249] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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