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Duszczak-Kaczmarek J, Mituła-Chmielowiec K, Rzonsowska M, Jankowski W, Hoffmann M, Walkowiak J, Dudziec B. Preparation of T 8 and double-decker silsesquioxane-based Janus-type molecules: molecular modeling and DFT insights. Sci Rep 2024; 14:18527. [PMID: 39122897 PMCID: PMC11316061 DOI: 10.1038/s41598-024-69481-6] [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: 06/26/2024] [Accepted: 08/05/2024] [Indexed: 08/12/2024] Open
Abstract
We present a methodology for the synthesis of inorganic-organic Janus-type molecules based on mono-T8 and difunctionalized double-decker silsesquioxanes (DDSQs) via hydrosilylation reactions, achieving exceptionally high yields and selectivities. The synthesized compounds were extensively characterized using various spectroscopic techniques, and their sizes and spatial arrangements were predicted through molecular modelling and density functional theory (DFT) calculations. Quantum chemical calculations were employed to examine the interactions among four molecules of the synthesized compounds. These computational results allowed us to determine the propensity for molecular aggregation, identify the functional groups involved in these interactions, and understand the changes in interatomic distances during aggregation. Understanding the aggregation behaviour of silsesquioxane molecules is crucial for tailoring their properties for specific applications, such as nanocomposites, surface coatings, drug delivery systems, and catalysts. Through a combination of experimental and computational approaches, this study provides valuable insights into the design and optimization of silsesquioxane-based Janus-type molecules for enhanced performance across various fields.
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Affiliation(s)
- Julia Duszczak-Kaczmarek
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland
- Center for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614, Poznan, Poland
| | - Katarzyna Mituła-Chmielowiec
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland
- Center for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614, Poznan, Poland
| | - Monika Rzonsowska
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland
- Center for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614, Poznan, Poland
| | - Wojciech Jankowski
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland
| | - Marcin Hoffmann
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland
| | - Jędrzej Walkowiak
- Center for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614, Poznan, Poland
| | - Beata Dudziec
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614, Poznan, Poland.
- Center for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614, Poznan, Poland.
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2
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Yonezawa H, Naka K, Imoto H. Open and Closed Cage Silsesquioxane Dimers. Chempluschem 2024:e202400301. [PMID: 38967957 DOI: 10.1002/cplu.202400301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 06/18/2024] [Accepted: 07/05/2024] [Indexed: 07/06/2024]
Abstract
Polyhedral oligomeric silsesquioxane (POSS) is an organic-inorganic hybrid molecule with two structural variations, closed- and open-cage configurations, referred to as completely condensed POSS (CC-POSS) and corner-opened POSS (CO-POSS), respectively. In this study, we synthesized 12 dimers by combining CC- and CO-POSS variants decorated with isobutyl or phenyl substituents to explore their structure-property relationships. The choice of substituents, both at the cage vertices and open sites, significantly affected the thermal and optical properties of the materials. Modifying the substituents on CO- and CC-POSS, which are isomers, led to significant alterations in the material properties. Notably, isomer-bearing carbazole substituents exhibited a substantially higher quantum yield (0.32) than its counterpart isomer (0.13), underscoring the crucial role of structural nuances in determining material performance. These results offer valuable insights for the design of novel silsesquioxane-based materials.
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Affiliation(s)
- Honoka Yonezawa
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
- Materials Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
- FOREST, Japan Science and Technology Corporation (JST), Honcho 4-1-8, Kawaguchi, Saitama, 332-0012, Japan
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3
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Miao L, Zhan L, Liao S, Li Y, He T, Yin S, Wu L, Qiu H. The Recent Advances of Polymer-POSS Nanocomposites With Low Dielectric Constant. Macromol Rapid Commun 2024; 45:e2300601. [PMID: 38232689 DOI: 10.1002/marc.202300601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/22/2023] [Indexed: 01/19/2024]
Abstract
This study provides a comprehensive overview of the preparation methods for polyhedral oligomeric silsesquioxane (POSS) monomers and polymer/POSS nanocomposites. It focuses on the latest advancements in using POSS to design polymer nanocomposites with reduced dielectric constants. The study emphasizes exploring the potential of POSS, either alone or in combination with other materials, to decrease the dielectric constant and dielectric loss of various polymers, including polyimides, bismaleimide resins, poly(aryl ether)s, polybenzoxazines, benzocyclobutene resins, polyolefins, cyanate ester resins, and epoxy resins. In addition, the research investigates the impact of incorporating POSS on improving the thermal properties, mechanical properties, surface properties, and other aspects of these polymers. The entire study is divided into two parts, discussing systematically the role of POSS in reducing dielectric constants during the preparation of POSS composites using both physical blending and chemical synthesis methods. The goal of this research is to provide valuable strategies for designing a new generation of low dielectric constant materials suitable for large-scale integrated circuits in the semiconductor materials domain.
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Affiliation(s)
- Li Miao
- Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, P.R. China
| | - Lingling Zhan
- Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, P.R. China
| | - Shenglong Liao
- School of engineering, Hangzhou Normal University, Hangzhou, 311121, P.R. China
| | - Yang Li
- Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, P.R. China
| | - Tian He
- Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, P.R. China
| | - Shouchun Yin
- Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, P.R. China
| | - Lianbin Wu
- Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, P.R. China
| | - Huayu Qiu
- Key Laboratory of Organosilicon Chemistry and Materials Technology of Ministry of Education, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, P.R. China
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4
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Chen J, Wu Z, Wang Q, Yang C, Chen J, Zhang H, Wu Y, Zhu DY, Hao X. Preparation and Characterization of Chloroprene Latexes Modified with Vinyl-POSS. Polymers (Basel) 2024; 16:462. [PMID: 38399840 PMCID: PMC10891617 DOI: 10.3390/polym16040462] [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: 12/23/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/25/2024] Open
Abstract
Water-based chloroprene latex is a solvent-free, environmentally friendly adhesive. Currently, its market demand is growing rapidly. However, there are problems such as a lack of heat resistance and poor mechanical properties, which limit its application. The introduction of vinyl-POSS (OVS) into the resin structure can effectively improve the thermal stability of chloroprene adhesives. In this paper, modified waterborne chloroprene latex was prepared by copolymerization of methyl methacrylate and OVS with chloroprene latex. The results showed that vinyl-POSS was successfully grafted onto the main chain of the waterborne chloroprene latex, and the modified waterborne chloroprene latex had good storage stability. With the increase in vinyl-POSS, the tensile strength of the chloroprene latex firstly increased and then decreased, the tensile property (peel strength of 20.2 kgf) was maintained well at a high temperature (100 °C), and the thermal stability of the chloroprene latex was improved. When the addition amount was 4%, the comprehensive mechanical properties were their best. This study provides a new idea for the construction of a new and efficient waterborne chloroprene latex system and provides more fields for the practical application of waterborne chloroprene latex. This newly developed vinyl-POSS modified chloroprene latex has great application potential for use in home furniture, bags, and seat cushions.
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Affiliation(s)
- Junhua Chen
- School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China; (J.C.); (Z.W.); (Q.W.)
- Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China
| | - Zhenxian Wu
- School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China; (J.C.); (Z.W.); (Q.W.)
| | - Qingwei Wang
- School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China; (J.C.); (Z.W.); (Q.W.)
| | - Chuanghui Yang
- School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China; (J.C.); (Z.W.); (Q.W.)
| | - Jinlian Chen
- School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China; (J.C.); (Z.W.); (Q.W.)
| | - He Zhang
- School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China; (J.C.); (Z.W.); (Q.W.)
- Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China
| | - Yinping Wu
- School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China; (J.C.); (Z.W.); (Q.W.)
- Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China
| | - Dong-Yu Zhu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China;
| | - Xiangying Hao
- School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China; (J.C.); (Z.W.); (Q.W.)
- Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China
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5
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Kausar A. Polymeric nanocomposite with polyhedral oligomeric silsesquioxane and nanocarbon (fullerene, graphene, carbon nanotube, nanodiamond)—futuristic headways. POLYM-PLAST TECH MAT 2023. [DOI: 10.1080/25740881.2022.2164724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Affiliation(s)
- Ayesha Kausar
- National Centre for Physics, NPU-NCP Joint International Research Center on Advanced Nanomaterials and Defects Engineering, Islamabad, Pakistan
- NPU-NCP Joint International Research Center on Advanced Nanomaterials and Defects Engineering, Northwestern Polytechnical University Xi’an China, Xi’an, China
- UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology, Somerset West, South Africa
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6
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So JI, Lee CS, Kim BS, Jeong HW, Seo JS, Baeck SH, Shim SE, Qian Y. Improvement of Heat Resistance of Fluorosilicone Rubber Employing Vinyl-Functionalized POSS as a Chemical Crosslinking Agent. Polymers (Basel) 2023; 15:1300. [PMID: 36904542 PMCID: PMC10007170 DOI: 10.3390/polym15051300] [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: 12/31/2022] [Revised: 02/24/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Fluorosilicone rubber (F-LSR) is a promising material that can be applied in various cutting-edge industries. However, the slightly lower thermal resistance of F-LSR compared with that of conventional PDMS is difficult to overcome by applying nonreactive conventional fillers that readily agglomerate owing to their incompatible structure. Polyhedral oligomeric silsesquioxane with vinyl groups (POSS-V) is a suitable material that may satisfy this requirement. Herein, F-LSR-POSS was prepared using POSS-V as a chemical crosslinking agent chemically bonded with F-LSR through hydrosilylation. All F-LSR-POSSs were successfully prepared and most of the POSS-Vs were uniformly dispersed in the F-LSR-POSSs, as confirmed by Fourier transform infrared spectroscopy (FT-IR), proton nuclear magnetic resonance spectroscopy (1H-NMR), scanning electron microscopy (SEM), and X-ray diffraction (XRD) measurements. The mechanical strength and crosslinking density of the F-LSR-POSSs were determined using a universal testing machine (UTM) and dynamic mechanical analysis (DMA), respectively. Finally, differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) measurements confirmed that the low-temperature thermal properties were maintained, and the heat resistance was significantly improved compared with conventional F-LSR. Eventually, the poor heat resistance of the F-LSR was overcome with three-dimensional high-density crosslinking by introducing POSS-V as a chemical crosslinking agent, thereby expanding the potential fluorosilicone applications.
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Affiliation(s)
| | | | | | | | | | | | - Sang Eun Shim
- Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy and Materials, Inha University, Incheon 22212, Republic of Korea
| | - Yingjie Qian
- Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy and Materials, Inha University, Incheon 22212, Republic of Korea
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7
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Zhang X, Wei Q, Meng X, Zhao L, Liu Z, Huang Y. Boronate Avidity Assisted by Dendrimer-like Polyhedral Oligomeric Silsesquioxanes for a Microfluidic Platform for Selective Enrichment of Ubiquitination and Glycosylation. Anal Chem 2023; 95:1241-1250. [PMID: 36563082 DOI: 10.1021/acs.analchem.2c04005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A new strategy of improving boronate avidity with good accessibility of sites was suggested by utilizing a dendrimer-like structure of boron materials based on octavinyl-polyhedral oligomeric silsesquioxanes (Ov-POSS). 3-(Acrylamido)phenylboronic acid (AAPBA) was used as a functional monomer and ethylene glycol dimethacrylate (EDMA) and Ov-POSS as cross-linkers. The resulting Ov-POSS cross-linked boron monolith exhibited 27 times stronger affinity for glycoproteins than the Ov-POSS-free monolith. Importantly, the bonding strength of the poly(AAPBA-co-Ov-POSS-co-EDMA) monolith to the glycoproteins with multiple sugars, horseradish peroxidase (HRP) was 4 orders of magnitude higher than that of the single cis-diol-containing compound. The resulting monolith was used as a part of a microfluidic platform for online processing of the protein extracts from mouse liver, which integrated five functions, including protein grading, denaturation, enzymatic hydrolysis, and enrichment of glycopeptides and ubiquitin-modified peptides. The sample processing time can be reduced by nearly half compared to the offline method. Moreover, 86.7% of glycopeptides and 75% of glycoproteins were newly identified after treatment. All of the results indicated that the synergistic strategy of Ov-POSS cross-linking can significantly improve trace glycosylation's binding capacity and enrichment performance. The microfluidic platform developed may provide a promising technical tool for automated, high-efficiency, high-throughput analysis for post-translational modification proteomics.
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Affiliation(s)
- Xue Zhang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Qin Wei
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Xin Meng
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Lili Zhao
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Zhaosheng Liu
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
| | - Yanping Huang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China
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8
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Duszczak J, Mrzygłód A, Mituła K, Dutkiewicz M, Januszewski R, Rzonsowska M, Dudziec B, Nowicki M, Kubicki M. Distinct insight into the use of difunctional double-decker silsesquioxanes as building blocks for alternating A–B type macromolecular frameworks. Inorg Chem Front 2023. [DOI: 10.1039/d2qi02161g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A distinct look at known, hydrosilylation reactions used for the formation of DDSQ-based linear A–B alternating macromolecular systems with DPn > 1000 is presented. Selected physicochemical properties of obtained hybrid co-polymers were determined.
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Affiliation(s)
- Julia Duszczak
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Aleksandra Mrzygłód
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Katarzyna Mituła
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Michał Dutkiewicz
- Adam Mickiewicz University Foundation, Poznan Science and Technology Park, Rubiez 46, 61-612 Poznan, Poland
| | - Rafał Januszewski
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Monika Rzonsowska
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Beata Dudziec
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Marek Nowicki
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
- Institute of Physics, Poznan University of Technology, Piotrowo 3, 60-965 Poznan, Poland
| | - Maciej Kubicki
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
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9
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Shahzadi S, Sher M, Aamir M, Bhatti MH, Yunus U. Synthesis of Hybrid POSS based Heterogeneous Catalysts for N-Alkylation of Amines with Alcohols. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.134999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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10
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Duszczak J, Mituła K, Rzonsowska M, Ławniczak P, Januszewski R, Szarłan B, Dudziec B. Slick Synthetic Approach to Various Fluoroalkyl Silsesquioxanes-Assessment of their Dielectric Properties. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8997. [PMID: 36556803 PMCID: PMC9785758 DOI: 10.3390/ma15248997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
We present a smart and efficient methodology for the synthesis of a variety of fluorinated silsesquioxanes (SQs) with diverse Si-O-Si core architecture. The protocol is based on an easy-to-handle and selective hydrosilylation reaction. An investigation on the placement of the reactive Si-HC=CH2 vs. Si-H in the silsesquioxane, as well as silane vs. olefin structure, respectively, on the progress and selectivity of the hydrosilylation process, was studied. Two alternative synthetic pathways for obtaining a variety of fluorine-functionalized silsesquioxanes were developed. As a result, a series of mono- and octa- T8 SQs, tri- 'open-cage' T7 SQs, in addition to di- and tetrafunctionalized double-decker silsesquioxane (DDSQ) derivatives, were obtained selectively with high yields. All products were characterized by spectroscopic (NMR, FTIR) techniques. Selected samples were subjected to the measurements revealing their dielectric permittivity in a wide range of temperatures (from -100 °C to 100 °C) and electric field frequencies (100-106 Hz).
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Affiliation(s)
- Julia Duszczak
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Katarzyna Mituła
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Monika Rzonsowska
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Paweł Ławniczak
- Institute of Molecular Physics Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznan, Poland
| | - Rafał Januszewski
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Bartłomiej Szarłan
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Beata Dudziec
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
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11
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Mohamed MG, Kuo SW. Progress in the self-assembly of organic/inorganic polyhedral oligomeric silsesquioxane (POSS) hybrids. SOFT MATTER 2022; 18:5535-5561. [PMID: 35880446 DOI: 10.1039/d2sm00635a] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This Review describes recent progress in the self-assembly of organic/inorganic POSS hybrids derived from mono-, di-, and multi-functionalized POSS cages. We highlight the self-assembled structures and physical properties of giant surfactants and chain-end- and side-chain-type hybrids derived from mono-functionalized POSS cages; main-chain-type hybrids derived from di-functionalized POSS cages; and star-shaped hybrids derived from multi-functionalized POSS cages; with various polymeric attachments, including polystyrene, poly(methyl methacrylate), phenolic, PVPh, and polypeptides.
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Affiliation(s)
- Mohamed Gamal Mohamed
- Department of Materials and Optoelectronic Science, Center for Functional Polymers and Supramolecular Materials, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan.
| | - Shiao-Wei Kuo
- Department of Materials and Optoelectronic Science, Center for Functional Polymers and Supramolecular Materials, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan.
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12
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One-pot synthesis of bifunctional polyhedral oligomeric silsesquioxane: Full spectrum ratio of vinyl groups from 0 to 100%. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.06.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Design of Fluorescent Hybrid Materials Based on POSS for Sensing Applications. Molecules 2022; 27:molecules27103137. [PMID: 35630610 PMCID: PMC9146672 DOI: 10.3390/molecules27103137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/11/2022] [Accepted: 05/11/2022] [Indexed: 02/05/2023] Open
Abstract
Polyhedral oligomeric silsesquioxane (POSS) has a nanoscale silicon core and eight organic functional groups on the surface, with sizes from 0.7 to 1.5 nm. The three-dimensional nanostructures of POSS can be used to build all types of hybrid materials with specific performance and controllable nanostructures. The applications of POSS-based fluorescent materials have spread across various fields. In particular, the employment of POSS-based fluorescent materials in sensing application can achieve high sensitivity, selectivity, and stability. As a result, POSS-based fluorescent materials are attracting increasing attention due to their fascinating vistas, including unique structural features, easy fabrication, and tunable optical properties by molecular design. Here, we summarize the current available POSS-based fluorescent materials from design to sensing applications. In the design section, we introduce synthetic strategies and structures of the functionalized POSS-based fluorescent materials, as well as photophysical properties. In the application section, the typical POSS-based fluorescent materials used for the detection of various target objects are summarized with selected examples to elaborate on their wide applications.
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14
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Liu Y, Chaiprasert T, Ouali A, Unno M. Well-defined cyclic silanol derivatives. Dalton Trans 2022; 51:4227-4245. [PMID: 35191910 DOI: 10.1039/d1dt04270j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Cyclic silanol derivatives (CSDs), possessing siloxane rings consisting of T-unit silicon and oxygen atoms, are considered efficient precursors for the preparation of versatile well-defined building blocks of hybrid materials such as cyclic, cage- or ladder-type SQs. This review provides an outline of the main synthetic routes to numerous stereoregular CSDs with different sizes of siloxane rings since the first example of CSDs reported by Brown et al. in 1965. The typical reaction conditions and chemical shifts of 29Si NMR of all mentioned CSDs in this review are summarized in tables and schemes to recapitulate the state of the art. The synthesis of all-cis-cyclotetrasiloxanes (T4), the most investigated CSDs, and their functionalization by different organic reactions to access various all-cis-T4 with functional groups are methodically presented. Moreover, the potential of CSDs in multiple application fields is discussed to show the possible research directions of this family of compounds in the future.
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Affiliation(s)
- Yujia Liu
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan.
| | - Thanawat Chaiprasert
- Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road Pathum Wan Wang Mai, Bangkok 10330, Thailand
| | - Armelle Ouali
- ICGM, Univ Montpellier, CNRS, ENSCM, 1919 route de Mende, Montpellier 34293 Cedex 5, France
| | - Masafumi Unno
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu 376-8515, Japan.
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15
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Igarashi A, Imoto H, Naka K. Polymethacrylates containing cage-silsesquioxanes in the side chains: effects of cage and linker structures on film properties. Polym Chem 2022. [DOI: 10.1039/d1py01709h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Polymers in which cage-silsesquioxanes were tethered through urethane linkers, were newly synthesized. The free-standing films were supported by the hydrogen bonding networks. Their properties were dependent on the cage structure.
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Affiliation(s)
- Amato Igarashi
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
- Materials Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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16
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Terashima K, Kawasaki-Takasuka T, Minami I, Yamazaki T. Synthesis and synthetic applications of (4-hydroxyphenyl)perfluoroalkylmethanols. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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He Z, Yu P, Zhang H, Zhao Y, Zhu Y, Guo Z, Ma C, Zhang H, Miao Z, Shen W. Silicon nanostructure-doped polymer/nematic liquid crystal composites for low voltage-driven smart windows. NANOTECHNOLOGY 2021; 33:085205. [PMID: 34787111 DOI: 10.1088/1361-6528/ac3a3b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 11/16/2021] [Indexed: 05/27/2023]
Abstract
In this work, two silicon nanostructures were doped into polymer/nematic liquid crystal composites to regulate the electric-optical performance. Commercial SiO2nanoparticles and synthesized thiol polyhedral oligomeric silsesquioxane (POSS-SH) were chosen as the dopants to afford the silicon nanostructures. SiO2nanoparticles were physically dispersed in the composites and the nanostructure from POSS-SH was implanted into the polymer matrix of the composites via photoinduced thiol-ene crosslinking. Scanning electron microscopy results indicated that the implantation of POSS microstructure into the polymer matrix was conducive to obtaining the uniform porous polymer microstructures in the composites while the introduction of SiO2nanoparticles led to the loose and heterogeneous polymer morphologies. The electric-optical performance test results also demonstrated that the electric-optical performance regulation effect of POSS microstructure was more obvious than that of SiO2nanoparticles. The driving voltage was reduced by almost 80% if the concentration of POSS-SH in the composite was nearly 8 wt% and the sample could be completely driven by the electric field whose voltage was lower than the safe voltage for continuous contact (24 V). This work could provide a creative approach for the regulation of electric-optical performance for polymer/nematic liquid crystal composites and the fabrication of low voltage-driven PDLC films for smart windows.
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Affiliation(s)
- Zemin He
- Xi'an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, Key Laboratory of Organic Polymer Photoelectric Materials, School of Sciences, Xijing University, Xi'an, 710123, People's Republic of China
| | - Ping Yu
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, People's Republic of China
| | - Huimin Zhang
- Xi'an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, Key Laboratory of Organic Polymer Photoelectric Materials, School of Sciences, Xijing University, Xi'an, 710123, People's Republic of China
| | - Yuzhen Zhao
- Xi'an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, Key Laboratory of Organic Polymer Photoelectric Materials, School of Sciences, Xijing University, Xi'an, 710123, People's Republic of China
| | - Yanfang Zhu
- Xi'an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, Key Laboratory of Organic Polymer Photoelectric Materials, School of Sciences, Xijing University, Xi'an, 710123, People's Republic of China
| | - Zhun Guo
- Xi'an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, Key Laboratory of Organic Polymer Photoelectric Materials, School of Sciences, Xijing University, Xi'an, 710123, People's Republic of China
| | - Cheng Ma
- Xi'an Key Laboratory of Advanced Photo-electronics Materials and Energy Conversion Device, Key Laboratory of Organic Polymer Photoelectric Materials, School of Sciences, Xijing University, Xi'an, 710123, People's Republic of China
| | - Haiquan Zhang
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, People's Republic of China
| | - Zongcheng Miao
- School of Artificial Intelligence, Optics and Electronics (iOPEN), Northwestern Polytechnical University, Xi'an 710072, Shaanxi, People's Republic of China
| | - Wenbo Shen
- Research Center for Intelligent Sensing, Zhejiang Laboratory, Hangzhou, 311100, People's Republic of China
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18
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Li Z, Hao X, Cheng G, Huang S, Han D, Xiao M, Wang S, Meng Y. In situ implantation of cross-linked functional POSS blocks in Nafion® for high performance direct methanol fuel cells. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119798] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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19
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Okamoto K, Igarashi A, Imoto H, Naka K. Reversible addition‐fragmentation chain transfer cyclopolymerization of dimethacryloyl open‐cage silsesquioxane. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Keigo Okamoto
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology Kyoto Institute of Technology Kyoto Japan
| | - Amato Igarashi
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology Kyoto Institute of Technology Kyoto Japan
| | - Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology Kyoto Institute of Technology Kyoto Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology Kyoto Institute of Technology Kyoto Japan
- Materials Innovation Lab Kyoto Institute of Technology Kyoto Japan
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20
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Loman-Cortes P, Binte Huq T, Vivero-Escoto JL. Use of Polyhedral Oligomeric Silsesquioxane (POSS) in Drug Delivery, Photodynamic Therapy and Bioimaging. Molecules 2021; 26:molecules26216453. [PMID: 34770861 PMCID: PMC8588151 DOI: 10.3390/molecules26216453] [Citation(s) in RCA: 10] [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: 09/18/2021] [Revised: 10/15/2021] [Accepted: 10/22/2021] [Indexed: 01/18/2023] Open
Abstract
Polyhedral oligomeric silsesquioxanes (POSS) have attracted considerable attention in the design of novel organic-inorganic hybrid materials with high performance capabilities. Features such as their well-defined nanoscale structure, chemical tunability, and biocompatibility make POSS an ideal building block to fabricate hybrid materials for biomedical applications. This review highlights recent advances in the application of POSS-based hybrid materials, with particular emphasis on drug delivery, photodynamic therapy and bioimaging. The design and synthesis of POSS-based materials is described, along with the current methods for controlling their chemical functionalization for biomedical applications. We summarize the advantages of using POSS for several drug delivery applications. We also describe the current progress on using POSS-based materials to improve photodynamic therapies. The use of POSS for delivery of contrast agents or as a passivating agent for nanoprobes is also summarized. We envision that POSS-based hybrid materials have great potential for a variety of biomedical applications including drug delivery, photodynamic therapy and bioimaging.
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Affiliation(s)
- Paula Loman-Cortes
- Department of Chemistry, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA; (P.L.-C.); (T.B.H.)
- Nanoscale Science Program, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Tamanna Binte Huq
- Department of Chemistry, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA; (P.L.-C.); (T.B.H.)
- Nanoscale Science Program, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
| | - Juan L. Vivero-Escoto
- Department of Chemistry, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA; (P.L.-C.); (T.B.H.)
- Nanoscale Science Program, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
- The Center for Biomedical Engineering and Science, The University of North Carolina at Charlotte, Charlotte, NC 28223, USA
- Correspondence: ; Tel.: +1-704-687-5239
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21
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Mahbub S, Saha S, Ramakrishna G, Furgal JC. Beads on a Chain Fluorescent Oligomeric Materials: Interactions of Conjugated Organic Cross-Linkers with Silsesquioxane Cages. J Phys Chem B 2021; 125:11457-11472. [PMID: 34641684 DOI: 10.1021/acs.jpcb.1c05282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Organic electronic materials have advantages over inorganics in terms of versatility, cost, and processability. Recent advancements in organic materials for light-emitting diodes (OLED), field effect transistors (OFET), and photovoltaics have engendered extensive innovation potential on this field. In this research, we focus on synthesizing SQ (silsesquioxane) based oligomers cross-linked by dibromo-aromatic linkers and explore how the cross-linker influences their photophysical properties. Bis-trialkoxy silyl (linker) model compounds were synthesized to compare noncage photophysical properties with the oligomers. Several techniques such as UV/vis, fluorescence, FTIR, and thermal gravimetric analysis (TGA) have been used to characterize the systems. Time-resolved fluorescence and femtosecond transient absorption spectroscopy were used to understand the excited state dynamics of these materials. Studies were carried out to understand the differences between monomers and oligomers and potential energy transfer and charge transfer between the cages and cross-linking chromophores. Transient absorption showed lower energy absorption from the excited states, suggesting short-range communication between moieties. Single photon counting studies have shown distinct lifetime differences between most linkers and cages display possible excitation energy transfer through these materials. Transient absorption anisotropy measurements have shown signatures for excitation energy transfer between linker chromophores for oligomeric compounds. The silsesquioxane (SQ) backbone of the oligomers gives substantial thermal stability as well as solution processability, giving better flexibility for achieving energy transfer between linking chromophores.
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Affiliation(s)
- Shahrea Mahbub
- Department of Chemistry and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
| | - Sukanya Saha
- Department of Chemistry and Biochemistry, Western Michigan University, Kalamazoo, Michigan 49008, United States
| | - Guda Ramakrishna
- Department of Chemistry and Biochemistry, Western Michigan University, Kalamazoo, Michigan 49008, United States
| | - Joseph C Furgal
- Department of Chemistry and Center for Photochemical Sciences, Bowling Green State University, Bowling Green, Ohio 43403, United States
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22
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Wang Q, Wu Z, Qin P, Ji J, Lai L, Yin M. Photoregulated Morphological Transformation of Spiropyran Derivatives Achieving the Tunability of Interfacial Hydrophilicity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:11170-11175. [PMID: 34478307 DOI: 10.1021/acs.langmuir.1c02053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Regulation of self-assembly morphology is an effective strategy to obtain advanced functional materials with expected properties. However, achieving remarkable morphological transformation by light irradiation is still a challenge. Herein, three simple spiropyran derivatives (SP1, SP2, and SP3) are constructed, achieving different degrees of morphological transformation from nanospheres to hollow tadpole-like structures (SP3), tubular structures (SP2), and microsheets (SP1) after ultraviolet light irradiation. Interestingly, the hollow tadpole-like structures (SP3) can further extend to Y-shaped or T-shaped tubular morphology. In the process, SP1, SP2, and SP3 can be isomerized from a closed-ring form (hydrophobicity) to an open-ring form (hydrophilicity) in different degrees, interacting differently with methanol solvent molecules. The formation of hollow structures or microsheets along with the isomerization of spiropyran derivatives contributes to the adjustment of the hydrophilicity of the interface. Therefore, SP1, SP2, and SP3 with photoregulated morphological transformation show promising applications in tunable interface materials.
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Affiliation(s)
- Qian Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhen Wu
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Penghua Qin
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jing Ji
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Liming Lai
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Meizhen Yin
- State Key Laboratory of Chemical Resource Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
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23
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Ma X, Ji T, Ma X, Zhao X, Wang W, Guo H, Shen S, Fan C, Yang M, Hou X. Effects of difunctional reactive polyhedral oligomeric silsesquioxane on the properties of
EPDM. J Appl Polym Sci 2021. [DOI: 10.1002/app.51486] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xutao Ma
- Laboratory of Hybrid Materials School of Chemistry and Chemical Engineering, Northwestern Polytechnical University Xi'an China
| | | | - Xiaoyan Ma
- Laboratory of Hybrid Materials School of Chemistry and Chemical Engineering, Northwestern Polytechnical University Xi'an China
| | - Xiaoran Zhao
- Laboratory of Hybrid Materials School of Chemistry and Chemical Engineering, Northwestern Polytechnical University Xi'an China
| | - Wentao Wang
- Laboratory of Hybrid Materials School of Chemistry and Chemical Engineering, Northwestern Polytechnical University Xi'an China
| | - Hongbin Guo
- Laboratory of Hybrid Materials School of Chemistry and Chemical Engineering, Northwestern Polytechnical University Xi'an China
| | - Shuai Shen
- Laboratory of Hybrid Materials School of Chemistry and Chemical Engineering, Northwestern Polytechnical University Xi'an China
| | - Cunlong Fan
- Laboratory of Hybrid Materials School of Chemistry and Chemical Engineering, Northwestern Polytechnical University Xi'an China
| | - Miaomiao Yang
- Laboratory of Hybrid Materials School of Chemistry and Chemical Engineering, Northwestern Polytechnical University Xi'an China
| | - Xiao Hou
- Laboratory of Hybrid Materials School of Chemistry and Chemical Engineering, Northwestern Polytechnical University Xi'an China
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24
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Stefanowska K, Szyling J, Walkowiak J, Franczyk A. Alkenyl-Functionalized Open-Cage Silsesquioxanes (RSiMe 2O) 3R' 7Si 7O 9: A Novel Class of Building Nanoblocks. Inorg Chem 2021; 60:11006-11013. [PMID: 34133151 PMCID: PMC8335724 DOI: 10.1021/acs.inorgchem.1c00689] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Trifunctional incompletely
condensed polyhedral oligomeric silsesquioxanes
(RSiMe2O)3R′7Si7O9 (IC-POSSs) are considered as intriguing
building nanoblocks dedicated to constructing highly advanced organic–inorganic
molecules and polymers. Up to now, they have been mainly obtained via hydrosilylation of olefins, while the hydrosilylation
of the C≡C bonds has not been studied at all, despite the enormous
potential of this approach resulting from the possibility of introducing
3, 6, or even more functional groups into the IC-POSS structure. Therefore, in this work, we present a highly selective
and efficient synthesis of the first example of tripodal alkenyl-functionalized IC-POSSs, obtained via platinum-catalyzed
hydrosilylation of the terminal and internal alkynes, as well as symmetrically
and nonsymmetrically 1,4-disubstituted buta-1,3-diynes with silsesquioxanes
(HSiMe2O)3R′7Si7O9 (R′ = i-C4H9 (1a), (H3C)3CH2C(H3C)HCH2C (1b)). The resulting
products are synthetic intermediates that contain C=C bonds
and functional groups (e.g., OSiMe3, SiR3, Br,
F, B(O(C(CH3)2)2 (Bpin)), thienyl),
which make them suitable for application in the synthesis of novel,
complex, hybrid materials with unique properties. The first example of the synthesis of
alkenyl-functionalized
open-cage silsesquioxanes (IC-POSS) via platinum-catalyzed
hydrosilylation of C−C triple bonds in alkynes and buta-1,3-diynes
is presented. The optimized synthetic procedure allowed for the selective
and efficient synthesis of 20 new functional molecules capable of
further modification by hydrosilylation, hydroboration, or other chemical
processes.
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Affiliation(s)
- Kinga Stefanowska
- Center for Advanced Technology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland.,Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Jakub Szyling
- Center for Advanced Technology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland.,Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Jędrzej Walkowiak
- Center for Advanced Technology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Adrian Franczyk
- Center for Advanced Technology, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
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25
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Zhu JH, Yiu SM, Tang BZ, Lo KKW. Luminescent Neutral Cyclometalated Iridium(III) Complexes Featuring a Cubic Polyhedral Oligomeric Silsesquioxane for Lipid Droplet Imaging and Photocytotoxic Applications. Inorg Chem 2021; 60:11672-11683. [PMID: 34269564 DOI: 10.1021/acs.inorgchem.1c01728] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
New neutral iridium(III) complexes featuring a cubic polyhedral oligomeric silsesquioxane (POSS) unit, [Ir(N∧C)2(L1-POSS)] [HN∧C = 2-phenylpyridine (Hppy; 1), 2-phenylbenzothioazole (Hbt; 2), and 2-(1-naphthyl)benzothiazole (Hbsn; 3); L1-POSS = (E)-4-[(2-hydroxybenzylidene)amino]benzyl 3-heptakis(isobutyl)POSS-propyl carbamate], were designed and synthesized. Their POSS-free counterparts, [Ir(N∧C)2(L1)] [L1 = (E)-N-(4-hydroxymethylphenyl)-1-(2-hydroxyphenyl)methanimine; HN∧C = Hppy (1a), Hbt (2a), and Hbsn (3a)], and the poly(ethylene glycol) (PEG) derivatives [Ir(N∧C)2(L1-PEG)] [L1-PEG = (E)-4-[(2-hydroxybenzylidene)amino]benzyl 3-[2-[ω-methoxypoly(1-oxapropyl)]ethyl]carbamate; HN∧C = Hppy (1b), Hbt (2b), and Hbsn (3b)] were also prepared. The photophysical, photochemical, and biological properties of the POSS complexes were compared with those of their POSS-free and PEG-modified counterparts. Upon irradiation, all of these complexes displayed orange-to-red emission and long emission lifetimes under ambient conditions. The bsn complexes 3, 3a, and 3b exhibited the highest singlet oxygen (1O2) generation quantum yields (ΦΔ = 0.85-0.86) in aerated CH3CN. Laser-scanning confocal microscopy images revealed that complexes 1-3 and 1a-3a showed exclusive lipid-droplet staining upon cellular uptake, while the PEG derivatives 1b-3b displayed lysosomal localization. Complex 3 was utilized to study various lipid-droplet-related biological events including lipid-droplet accumulation under oleic acid stimulation, the movement of lipid droplets, and preadipocyte differentiation. Notably, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assays indicated that the ppy complexes 1 and 1b and the bt complexes 2 and 2b were noncytotoxic both in the dark and upon irradiation at 450 nm for 5 min (IC50 > 200 μM), while the bsn complexes 3, 3a, and 3b showed low dark cytotoxicity (IC50 = 52.9 to >200 μM) and high photocytotoxicity (IC50 = 1.1-5.3 μM). The cellular uptake, internalization mechanisms, and cell death pathways of these complexes were also investigated. This work not only offers promising luminescent probes for lipid droplets through the structural modification of iridium(III) complexes but also paves the way to the construction of new reagents for theranostics.
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Affiliation(s)
- Jing-Hui Zhu
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Hong Kong, P. R. China
| | - Shek-Man Yiu
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Hong Kong, P. R. China
| | - Ben Zhong Tang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China
| | - Kenneth Kam-Wing Lo
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Hong Kong, P. R. China.,State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Tat Chee Avenue, Hong Kong, P. R. China.,Center of Functional Photonics, City University of Hong Kong, Tat Chee Avenue, Hong Kong, P. R. China
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26
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Liu Y, Kigure M, Okawa R, Takeda N, Unno M, Ouali A. Synthesis and characterization of tetrathiol-substituted double-decker or ladder silsesquioxane nano-cores. Dalton Trans 2021; 50:3473-3478. [PMID: 33660737 DOI: 10.1039/d1dt00042j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Tetra(3-mercaptopropyl)-silsesquioxanes with double-decker (DDSQ) or ladder nano-cores were easily prepared from the corresponding tetraallyl derivatives through fast and convenient thiol-ene reactions. An additional tetrathiol-DDSQ with more flexible arms was also synthesized in high yield from the corresponding tetrachloro-DDSQ derivative. The three novel tetrathiol silsesquioxanes described represent versatile building blocks for the preparation of hybrid organic-inorganic materials.
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Affiliation(s)
- Yujia Liu
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with ICGM, France.
| | - Mana Kigure
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology. Gunma University, Kiryu 376-8515, Japan
| | - Riho Okawa
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology. Gunma University, Kiryu 376-8515, Japan
| | - Nobuhiro Takeda
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology. Gunma University, Kiryu 376-8515, Japan
| | - Masafumi Unno
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with ICGM, France. and Department of Chemistry and Chemical Biology, Graduate School of Science and Technology. Gunma University, Kiryu 376-8515, Japan
| | - Armelle Ouali
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with ICGM, France. and ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier 34296, France
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27
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Fan L, Wang X, Wu D. Polyhedral Oligomeric Silsesquioxanes (
POSS
)‐based Hybrid Materials: Molecular Design, Solution
Self‐Assembly
and Biomedical Applications. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000536] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Linfeng Fan
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
- Department of Biomedical Engineering, Southern University of Science and Technology Shenzhen Guangdong 518055 China
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28
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Plumet J. 1,3-Dipolar Cycloaddition Reactions of Nitrile Oxides under "Non-Conventional" Conditions: Green Solvents, Irradiation, and Continuous Flow. Chempluschem 2021; 85:2252-2271. [PMID: 33044044 DOI: 10.1002/cplu.202000448] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 08/11/2020] [Indexed: 01/15/2023]
Abstract
The 1,3-dipolar cycloaddition reactions (DCs) of nitrile oxides (NOs) to alkenes and alkynes are useful methods for the synthesis of 2-isoxazolines and isoxazoles respectively, which are important classes of heterocyclic compounds in organic and medicinal chemistry. Most of these reactions are carried out in organic solvents and under thermal activation. Nevertheless the use of supercritical carbon dioxide (scCO2 ) and ionic liquids (Ils) as alternative solvents and the application of microwave (MW) and ultrasound (US) as alternative activation procedures have evident advantages from the "Green Chemistry" point of view. The critical discussion on the applications of these "unconventional" activation methods and reaction conditions in the 1,3-DCs of NOs is the objective of the present Review.
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Affiliation(s)
- Joaquín Plumet
- Department of Organic Chemistry. Faculty of Chemistry, Complutense University of Madrid, Ciudad Universitaria, 28040, Madrid, Spain
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29
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Igarashi A, Ueda Y, Katoh R, Imoto H, Naka K. Highly selective mono‐functionalization of open‐cage silsesquioxane toward film‐formable homopolymer. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20200710] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Amato Igarashi
- Faculty of Molecular Chemistry and Engineering Kyoto Institute of Technology Kyoto Japan
| | - Yukiho Ueda
- Faculty of Molecular Chemistry and Engineering Kyoto Institute of Technology Kyoto Japan
| | - Ryoichi Katoh
- Faculty of Molecular Chemistry and Engineering Kyoto Institute of Technology Kyoto Japan
| | - Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering Kyoto Institute of Technology Kyoto Japan
- Materials Innovation Lab Kyoto Institute of Technology Kyoto Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering Kyoto Institute of Technology Kyoto Japan
- Materials Innovation Lab Kyoto Institute of Technology Kyoto Japan
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30
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Pang B, Liu R, Han G, Wang W, Zhang W. The synthesis of thermoresponsive POSS-based eight-arm star poly( N-isopropylacrylamide): A comparison between Z-RAFT and R-RAFT strategies. Polym Chem 2021. [DOI: 10.1039/d1py00087j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Z-Type POSS-based eight-arm star poly(N-isopropylacrylamide), POSS-(PNIPAM)8-Z, is synthesized and demonstrated to be a thermoresponsive switchable emulsifier.
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Affiliation(s)
- Bo Pang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Rui Liu
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Guang Han
- State Key Laboratory of Special Functional Waterproof Materials
- Beijing Oriental Yuhong Waterproof Technology Co
- Ltd
- Beijing 100123
- China
| | - Wei Wang
- School of Chemistry & Material Science
- Langfang Normal University
- Langfang
- China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
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31
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Majumdar R, Wannasiri C, Sukwattanasinitt M, Ervithayasuporn V. Porous silsesquioxane cage and porphyrin nanocomposites: sensing and adsorption for heavy metals and anions. Polym Chem 2021. [DOI: 10.1039/d0py01698e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A porous silsesquioxane cage/porphyrin nanocomposite was designed as a dual fluorescent probe for the sensing and adsorption of both heavy metal ions and anions.
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Affiliation(s)
- Rakhi Majumdar
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Center for Inorganic and Materials Chemistry
- Faculty of Science
- Mahidol University
| | - Chidchanok Wannasiri
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Center for Inorganic and Materials Chemistry
- Faculty of Science
- Mahidol University
| | - Mongkol Sukwattanasinitt
- Nanotec-CU Center of Excellence on Food and Agriculture
- Department of Chemistry
- Faculty of Science
- Chulalongkorn University
- Bangkok
| | - Vuthichai Ervithayasuporn
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Center for Inorganic and Materials Chemistry
- Faculty of Science
- Mahidol University
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32
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Loganathan P, Pillai RS, Jeevananthan V, David E, Palanisami N, Bhuvanesh NSP, Shanmugan S. Assembly of discrete and oligomeric structures of organotin double-decker silsesquioxanes: inherent stability studies. NEW J CHEM 2021. [DOI: 10.1039/d1nj03128g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Discrete and oligomeric organotin DDSQs have been synthesized and characterized, both experimentally and through computational study. The stability of these compounds remains intrigued with the organization of their structure in the crystal lattice.
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Affiliation(s)
- Pushparaj Loganathan
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India
| | - Renjith S. Pillai
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India
- Department of Chemistry, Christ University, Bangalore-56029, Karnataka, India
| | - Velusamy Jeevananthan
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India
| | - Ezhumalai David
- Centre for Functional Materials, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
| | - Nallasamy Palanisami
- Centre for Functional Materials, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
| | - Nattamai S. P. Bhuvanesh
- X-ray Diffraction Laboratory, Department of Chemistry, Texas A&M University, College Station, TX 77842, USA
| | - Swaminathan Shanmugan
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur-603203, Tamil Nadu, India
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33
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Mituła K, Duszczak J, Rzonsowska M, Żak P, Dudziec B. Polysiloxanes Grafted with Mono(alkenyl)Silsesquioxanes-Particular Concept for Their Connection. MATERIALS 2020; 13:ma13214784. [PMID: 33114766 PMCID: PMC7662624 DOI: 10.3390/ma13214784] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/21/2020] [Accepted: 10/23/2020] [Indexed: 11/20/2022]
Abstract
Herein, a facile and efficient synthetic route to unique hybrid materials containing polysiloxanes and mono(alkyl)silsesquioxanes as their pendant modifiers (T8@PS) was demonstrated. The idea of this work was to apply the hydrosilylation reaction as a tool for the efficient and selective attachment of mono(alkenyl)substituted silsesquioxanes (differing in the alkenyl chain length, from -vinyl to -dec-9-enyl and types of inert groups iBu, Ph at the inorganic core) onto two polysiloxanes containing various amount of Si-H units. The synthetic protocol, determined and confirmed by FT-IR in situ and NMR analyses, was optimized to ensure complete Si-H consumption along with the avoidance of side-products. A series of 20 new compounds with high yields and complete β-addition selectivity was obtained and characterized by spectroscopic methods.
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Affiliation(s)
- Katarzyna Mituła
- Faculty of Chemistry, Department of Organometallic Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland; (J.D.); (M.R.); (P.Ż.)
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
- Correspondence: (K.M.); (B.D.); Tel.: +48-61-829-1878 (B.D.)
| | - Julia Duszczak
- Faculty of Chemistry, Department of Organometallic Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland; (J.D.); (M.R.); (P.Ż.)
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Monika Rzonsowska
- Faculty of Chemistry, Department of Organometallic Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland; (J.D.); (M.R.); (P.Ż.)
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
| | - Patrycja Żak
- Faculty of Chemistry, Department of Organometallic Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland; (J.D.); (M.R.); (P.Ż.)
| | - Beata Dudziec
- Faculty of Chemistry, Department of Organometallic Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland; (J.D.); (M.R.); (P.Ż.)
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 10, 61-614 Poznan, Poland
- Correspondence: (K.M.); (B.D.); Tel.: +48-61-829-1878 (B.D.)
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34
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Surface chain dependent arrangement and self-assembly of polyhedral oligomeric silsesquioxane for supramolecular gels. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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35
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Moriizumi Y, Fukuda H, Tanaka S, Tanaka D, Nagai K. Temperature dependence of methanol and ethanol vapor sorption in polyhedral oligomeric silsesquioxane (
POSS
) containing methacrylate membranes. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Hajime Fukuda
- Department of Applied Chemistry Meiji University Kawasaki Japan
| | - Seiya Tanaka
- Department of Applied Chemistry Meiji University Kawasaki Japan
| | - Daisuke Tanaka
- Department of Applied Chemistry Meiji University Kawasaki Japan
| | - Kazukiyo Nagai
- Department of Applied Chemistry Meiji University Kawasaki Japan
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36
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Wang J, Du W, Zhang Z, Gao W, Li Z. Biomass/polyhedral oligomeric silsesquioxane nanocomposites: Advances in preparation strategies and performances. J Appl Polym Sci 2020. [DOI: 10.1002/app.49641] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Junchao Wang
- National Engineering Laboratory for Clean Technology of Leather Manufacture Sichuan University Chengdu China
- XING YE Leather Technology Co., Ltd Fujian Provincial Key Laboratory of Green Design and Manufacture of Leather Quanzhou Fujian Province China
| | - Weining Du
- National Engineering Laboratory for Clean Technology of Leather Manufacture Sichuan University Chengdu China
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan University Chengdu China
| | - Zetian Zhang
- National Engineering Laboratory for Clean Technology of Leather Manufacture Sichuan University Chengdu China
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan University Chengdu China
| | - Weiyao Gao
- National Engineering Laboratory for Clean Technology of Leather Manufacture Sichuan University Chengdu China
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan University Chengdu China
| | - Zhengjun Li
- National Engineering Laboratory for Clean Technology of Leather Manufacture Sichuan University Chengdu China
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan University Chengdu China
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37
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Sato Y, Imoto H, Naka K. Soluble and film‐formable homopolymer tethering side‐opened cage silsesquioxane pendants. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200161] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yuri Sato
- Faculty of Molecular Chemistry and Engineering Graduate School of Science and Technology, Kyoto Institute of Technology Kyoto Japan
| | - Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering Graduate School of Science and Technology, Kyoto Institute of Technology Kyoto Japan
- Materials Innovation Lab Kyoto Institute of Technology Kyoto Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering Graduate School of Science and Technology, Kyoto Institute of Technology Kyoto Japan
- Materials Innovation Lab Kyoto Institute of Technology Kyoto Japan
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38
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Preparation of Tri(alkenyl)functional Open-Cage Silsesquioxanes as Specific Polymer Modifiers. Polymers (Basel) 2020; 12:polym12051063. [PMID: 32384702 PMCID: PMC7285154 DOI: 10.3390/polym12051063] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 01/23/2023] Open
Abstract
The scientific reports on polyhedral oligomeric silsesquioxanes are mostly focused on the formation of completely condensed T8 cubic type structures and recently so-called double-decker derivatives. Herein, we report on efficient synthetic routes leading to trifunctionalized, open-cage silsesquioxanes with alkenyl groups of varying chain lengths from -vinyl to -dec-9-enyl and two types of inert groups (iBu, Ph) at the silsesquioxane core. The presented methodology was focused on hydrolytic condensation reaction and it enabled obtaining titled compounds with high yields and purity. A parallel synthetic methodology that was based on the hydrosilylation reaction was also studied. Additionally, a thorough characterization of the obtained compounds was performed, also in terms of their thermal stability, melting and crystallization temperatures (TGA and DSC) in order to show the changes in the abovementioned parameters dependent on the type of reactive as well as inert groups at Si-O-Si core. The presence of unsaturated alkenyl groups has a profound impact on the application potential of these systems, i.e., as modifiers or comonomers for copolymerization reaction.
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39
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Abstract
Cage-like silsesquioxanes are considered to be ideal and versatile building blocks of hybrid materials due to their unique structures and excellent performance. This Perspective highlights recent advances in the field of cage-like silsesquioxane-based hybrid materials, ranging from monomer functionalization and materials preparation to application. The existing issues are reviewed and the challenges and prospects in this field are also discussed for further development and exploitation.
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Affiliation(s)
- Yajing Du
- Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China.
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40
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Imoto H, Ueda Y, Sato Y, Nakamura M, Mitamura K, Watase S, Naka K. Corner‐ and Side‐Opened Cage Silsesquioxanes: Structural Effects on the Materials Properties. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901182] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering Graduate School of Science and Technology Kyoto Institute of Technology Goshokaido‐cho, Matsugasaki, Sakyo‐ku 606‐8585 Kyoto Japan
- Materials Innovation Lab Kyoto Institute of Technology Goshokaido‐cho, Matsugasaki, Sakyo‐ku 606‐8585 Kyoto Japan
| | - Yukiho Ueda
- Faculty of Molecular Chemistry and Engineering Graduate School of Science and Technology Kyoto Institute of Technology Goshokaido‐cho, Matsugasaki, Sakyo‐ku 606‐8585 Kyoto Japan
| | - Yuri Sato
- Faculty of Molecular Chemistry and Engineering Graduate School of Science and Technology Kyoto Institute of Technology Goshokaido‐cho, Matsugasaki, Sakyo‐ku 606‐8585 Kyoto Japan
| | - Masashi Nakamura
- Morinomiya Center Osaka Research Institute of Industrial Science and Technology Morinomiya Center 1‐6–50 Morinomiya, Joto‐ku 536‐8553 Osaka Japan
| | - Koji Mitamura
- Morinomiya Center Osaka Research Institute of Industrial Science and Technology Morinomiya Center 1‐6–50 Morinomiya, Joto‐ku 536‐8553 Osaka Japan
| | - Seiji Watase
- Morinomiya Center Osaka Research Institute of Industrial Science and Technology Morinomiya Center 1‐6–50 Morinomiya, Joto‐ku 536‐8553 Osaka Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering Graduate School of Science and Technology Kyoto Institute of Technology Goshokaido‐cho, Matsugasaki, Sakyo‐ku 606‐8585 Kyoto Japan
- Materials Innovation Lab Kyoto Institute of Technology Goshokaido‐cho, Matsugasaki, Sakyo‐ku 606‐8585 Kyoto Japan
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41
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Żak P, Bołt M, Grzelak M, Rachuta K, Dudziec B, Januszewski R, Marciniec B, Marciniak B. Synthesis and properties of chromophore-functionalized monovinylsilsesquioxane derivatives. NEW J CHEM 2020. [DOI: 10.1039/d0nj01250e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Herein, an effective and selective synthesis of chromophore-functionalized monovinylsilsesquioxane derivatives by a cross-metathesis reaction along with discussion of their photophysical and thermal resistance properties is disclosed.
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Affiliation(s)
- Patrycja Żak
- Faculty of Chemistry
- Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8
- 61-614 Poznan
- Poland
| | - Małgorzata Bołt
- Faculty of Chemistry
- Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8
- 61-614 Poznan
- Poland
| | - Magdalena Grzelak
- Faculty of Chemistry
- Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8
- 61-614 Poznan
- Poland
- Center for Advanced Technologies
| | - Karolina Rachuta
- Faculty of Chemistry
- Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8
- 61-614 Poznan
- Poland
| | - Beata Dudziec
- Faculty of Chemistry
- Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8
- 61-614 Poznan
- Poland
- Center for Advanced Technologies
| | - Rafał Januszewski
- Faculty of Chemistry
- Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8
- 61-614 Poznan
- Poland
- Center for Advanced Technologies
| | - Bogdan Marciniec
- Faculty of Chemistry
- Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8
- 61-614 Poznan
- Poland
- Center for Advanced Technologies
| | - Bronislaw Marciniak
- Faculty of Chemistry
- Adam Mickiewicz University in Poznan, Uniwersytetu Poznanskiego 8
- 61-614 Poznan
- Poland
- Center for Advanced Technologies
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42
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Calabrese C, Aprile C, Gruttadauria M, Giacalone F. POSS nanostructures in catalysis. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01407a] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this review we highlight the use of appealing POSS-based nanostructures for both homogeneous and heterogeneous catalytic applications.
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Affiliation(s)
- Carla Calabrese
- Department of Biological
- Chemical and Pharmaceutical Sciences and Technologies
- University of Palermo
- Palermo
- Italy
| | | | - Michelangelo Gruttadauria
- Department of Biological
- Chemical and Pharmaceutical Sciences and Technologies
- University of Palermo
- Palermo
- Italy
| | - Francesco Giacalone
- Department of Biological
- Chemical and Pharmaceutical Sciences and Technologies
- University of Palermo
- Palermo
- Italy
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43
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Chaari M, Kelemen Z, Choquesillo-Lazarte D, Teixidor F, Viñas C, Núñez R. Anthracene–styrene-substituted m-carborane derivatives: insights into the electronic and structural effects of substituents on photoluminescence. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00127a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Efficient light emitters based on anthracene derivatives were developed. We prove that m-carborane is a perfect scaffold for coupling to anthracene giving rise to superb emitters in solution, while keeping the emission properties in aggregate state.
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Affiliation(s)
- Mahdi Chaari
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus U.A.B
- Bellaterra
- Spain
| | - Zsolt Kelemen
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus U.A.B
- Bellaterra
- Spain
| | | | - Francesc Teixidor
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus U.A.B
- Bellaterra
- Spain
| | - Clara Viñas
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus U.A.B
- Bellaterra
- Spain
| | - Rosario Núñez
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus U.A.B
- Bellaterra
- Spain
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44
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Ai L, Chen Y, He L, Luo Y, Li S, Xu C. Synthesis of structured polysiloxazanes via a Piers-Rubinsztajn reaction. Chem Commun (Camb) 2019; 55:14019-14022. [PMID: 31690921 DOI: 10.1039/c9cc07312d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A series of siloxazanes were successfully prepared by a Piers-Rubinsztajn reaction between methoxydisilazanes and the corresponding hydrosilanes. Polysiloxazanes with narrow dispersion were also synthesized from methoxydisilazanes and Si-H terminated oligosiloxanes. The possible interaction mechanism between tris(pentafluorophenyl)borane and the methoxydisilazane was investigated.
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Affiliation(s)
- Liqing Ai
- Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
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45
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Viñas C, Núñez R, Bennour I, Teixidor F. Periphery Decorated and Core Initiated Neutral and Polyanionic Borane Large Molecules: Forthcoming and Promising Properties for Medicinal Applications. Curr Med Chem 2019; 26:5036-5076. [PMID: 31161983 DOI: 10.2174/0929867326666190603123838] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 08/13/2018] [Accepted: 08/15/2018] [Indexed: 11/22/2022]
Abstract
A mini-review based on radial growing macromolecules and core initiated Borane
periphery decorated with o-carboranes and metallacarboranes that has been developed in the
authors laboratories is reported. The review is divided into four sections; three of them are
related to the design and synthesis of these large boron-containing molecules and the fourth
deals with the unique properties of anionic metallacarborane molecules that provide a glimpse
of their potential for their promising use in medicinal applications. Their unique stability
along with their geometrical and electronic properties, as well as the precise steric structure of
1,2-closo-C2B10H12 (o-carborane) that has the potential for the incorporation of many substituents:
at the carbon (Cc), at the boron and at both carbon and boron vertices, suggests this
cluster as an innovative building block or platform for novel applications that cannot be
achieved with organic hydrocarbon compounds. Poly(aryl-ether) dendrimers grown from
fluorescent cores, such as 1,3,5-triarylbenzene or meso-porphyrins, have been decorated with
boron clusters to attain rich boron containing dendrimers. Octasilsesquioxane cubes have been
used as a core for its radial growth to get boron-rich large molecules. The unique properties of
cobaltabisdicarbollide cluster, which include: i) self-assembly in water to produce monolayer
nano-vesicles, ii) crossing lipid bilayer membranes, iii) interacting with membrane cells, iv)
facilitating its visualization within cells by Raman and fluorescence techniques and v) their
use as molecular platform for “in vivo” imaging are discussed in detail.
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Affiliation(s)
- Clara Viñas
- Institut de Ciencia de Materials de Barcelona (ICMAB-CSIC). Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Rosario Núñez
- Institut de Ciencia de Materials de Barcelona (ICMAB-CSIC). Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Ines Bennour
- Institut de Ciencia de Materials de Barcelona (ICMAB-CSIC). Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Francesc Teixidor
- Institut de Ciencia de Materials de Barcelona (ICMAB-CSIC). Campus UAB, 08193 Bellaterra, Barcelona, Spain
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46
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Stefanowska K, Franczyk A, Szyling J, Walkowiak J. Synthesis of Functional 3‐Buten‐1‐ynes and 1,3‐Butadienes with Silsesquioxane Moiety
via
Hydrosilylation of 1,3‐Diynes. ChemCatChem 2019. [DOI: 10.1002/cctc.201901082] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kinga Stefanowska
- Center for Advanced TechnologyAdam Mickiewicz University in Poznan Uniwersytetu Poznańskiego 10 Poznan 61-614 Poland
- Faculty of ChemistryAdam Mickiewicz University in Poznan Uniwersytetu Poznańskiego 8 Poznan 61-614 Poland
| | - Adrian Franczyk
- Center for Advanced TechnologyAdam Mickiewicz University in Poznan Uniwersytetu Poznańskiego 10 Poznan 61-614 Poland
| | - Jakub Szyling
- Center for Advanced TechnologyAdam Mickiewicz University in Poznan Uniwersytetu Poznańskiego 10 Poznan 61-614 Poland
- Faculty of ChemistryAdam Mickiewicz University in Poznan Uniwersytetu Poznańskiego 8 Poznan 61-614 Poland
| | - Jędrzej Walkowiak
- Center for Advanced TechnologyAdam Mickiewicz University in Poznan Uniwersytetu Poznańskiego 10 Poznan 61-614 Poland
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Imoto H, Ishida A, Hashimoto M, Mizoue Y, Yusa SI, Naka K. Soluble Network Polymers Based on Trifunctional Open-cage Silsesquioxanes. CHEM LETT 2019. [DOI: 10.1246/cl.190536] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
- Materials Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Ayano Ishida
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Mari Hashimoto
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Yoko Mizoue
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
| | - Shin-ichi Yusa
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
- Materials Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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Li W, Jiang C, Liu H, Yan Y, Liu H. Octa[4‐(9‐carbazolyl)phenyl]silsesquioxane‐Based Porous Material for Dyes Adsorption and Sensing of Nitroaromatic Compounds. Chem Asian J 2019; 14:3363-3369. [DOI: 10.1002/asia.201900951] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/18/2019] [Indexed: 01/19/2023]
Affiliation(s)
- Wanli Li
- Key Laboratory of Special Functional Aggregated MaterialsMinistry of EducationSchool of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
| | - Chundong Jiang
- Key Laboratory of Special Functional Aggregated MaterialsMinistry of EducationSchool of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
| | - Huanhuan Liu
- Key Laboratory of Special Functional Aggregated MaterialsMinistry of EducationSchool of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
| | - Yehao Yan
- Key Laboratory of Special Functional Aggregated MaterialsMinistry of EducationSchool of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
| | - Hongzhi Liu
- Key Laboratory of Special Functional Aggregated MaterialsMinistry of EducationSchool of Chemistry and Chemical EngineeringShandong University Jinan 250100 P. R. China
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Yang X, Liu H. Diphenylphosphine-Substituted Ferrocene/Silsesquioxane-Based Hybrid Porous Polymers as Highly Efficient Adsorbents for Water Treatment. ACS APPLIED MATERIALS & INTERFACES 2019; 11:26474-26482. [PMID: 31259524 DOI: 10.1021/acsami.9b07874] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The study describes the synthesis of two porous hybrid polymers (abbreviated as DPPF-HPP and DPPOF-HPP) from the Friedel-Crafts reaction of octavinylsilsesquioxane with 1,1'-bis(diphenylphosphine)ferrocene (DPPF) and 1,1'-bis(diphenylphosphine oxide)ferrocene (DPPOF), respectively. DPPF-HPP and DPPOF-HPP possess surface areas of about 890 and 780 m2 g-1, respectively, as well as similar pore structures of the coexisting micropores and mesopores. They are excellent materials for high adsorption of different dyes with adsorption capacities of 2280 mg g-1 for Congo Red and 1440 mg g-1 for Crystal Violet. DPPF-HPP also shows a strong affinity to adsorb Hg2+ ions (300 mg g-1). These materials show no sign of degradation under repeated cycles and thus offer potential for wastewater treatment.
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Affiliation(s)
- Xiaoru Yang
- Key Laboratory of Special Functional Aggregated Materials Ministry of Education, School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , P. R. China
| | - Hongzhi Liu
- Key Laboratory of Special Functional Aggregated Materials Ministry of Education, School of Chemistry and Chemical Engineering , Shandong University , Jinan 250100 , P. R. China
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Zhu J, Tang BZ, Lo KK. Luminescent Molecular Octopuses with a Polyhedral Oligomeric Silsesquioxane (POSS) Core and Iridium(III) Polypyridine Arms: Synthesis, Aggregation Induced Emission, Cellular Uptake, and Bioimaging Studies. Chemistry 2019; 25:10633-10641. [DOI: 10.1002/chem.201901029] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/10/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Jing‐Hui Zhu
- Department of ChemistryCity University of Hong Kong Tat Chee Avenue Hong Kong P. R. China
| | - Ben Zhong Tang
- Department of ChemistryThe Hong Kong University of, Science and Technology Clear Water Bay Kowloon, Hong Kong P. R. China
| | - Kenneth Kam‐Wing Lo
- Department of ChemistryCity University of Hong Kong Tat Chee Avenue Hong Kong P. R. China
- State Key Laboratory of Terahertz and Millimeter WavesCity University of Hong Kong Tat Chee Avenue Hong Kong P. R. China
- Center of Functional PhotonicsCity University of Hong Kong Tat Chee Avenue Hong Kong P. R. China
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