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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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Söderholm V, Esteban J, Vogt D. Synthesis of a H-Sulfo-POSS catalyst and application in the acetalization of glycerol with 2-butanone to yield a biofuel additive. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00344e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This work shows the synthesis of a catalyst based on the functionalization of octaphenyl polyhedral oligomeric silsesquioxanes with sulfonic groups (H-Sulfo-POSS) and its performance in the acetalization of glycerol to yield a biobased fuel additive.
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Affiliation(s)
- Viktor Söderholm
- Laboratory of Industrial Chemistry
- Department of Biochemical and Chemical Engineering
- Technical University of Dortmund
- D-44227 Dortmund
- Germany
| | - Jesús Esteban
- Department of Chemical Engineering and Analytical Science
- The University of Manchester
- Manchester M13 9PL
- UK
| | - Dieter Vogt
- Laboratory of Industrial Chemistry
- Department of Biochemical and Chemical Engineering
- Technical University of Dortmund
- D-44227 Dortmund
- Germany
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5
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Chaiprasert T, Liu Y, Intaraprecha PK, Kunthom R, Takeda N, Unno M. Synthesis of Tricyclic Laddersiloxane with Various Ring Sizes (Bat Siloxane). Macromol Rapid Commun 2020; 42:e2000608. [PMID: 33326166 DOI: 10.1002/marc.202000608] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/17/2020] [Indexed: 11/10/2022]
Abstract
A new synthetic method for tricyclic laddersiloxanes, ladder-type silsesquioxanes with defined structures, is developed based on intramolecular cyclization of hydrosilyl-functionalized cyclic siloxanes. This method enables the construction of unprecedented laddersiloxanes with various ring sizes. Herein, the preparation of tricyclic laddersiloxanes containing 6-8-6-, 8-8-8-, or 12-8-12-membered-ring systems is reported. These products can be considered as bat-shape siloxanes, owing to their rigid inorganic siloxane body with flexible oligosiloxane "wings" as side rings. The synthesized compounds are potential building blocks for well-defined nanomaterials, porous materials, and host molecules.
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Affiliation(s)
- Thanawat Chaiprasert
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu, 376-8515, Japan
| | - Yujia Liu
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu, 376-8515, Japan
| | - Pa-Kwan Intaraprecha
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu, 376-8515, Japan
| | - Rungthip Kunthom
- 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
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu, 376-8515, Japan
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6
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Liu Y, Kigure M, Koizumi K, Takeda N, Unno M, Ouali A. Synthesis of Tetrachloro, Tetraiodo, and Tetraazido Double-Decker Siloxanes. Inorg Chem 2020; 59:15478-15486. [PMID: 33026805 DOI: 10.1021/acs.inorgchem.0c02515] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A convenient and scalable (gram-scale) route to unprecedented T8D2-double-decker siloxanes (DDSQs) bearing four chloro (3b) or four azido (5b) groups is reported. Both compounds were characterized and proved to undergo successful nucleophilic substitution for 3b (with iodide or azide) and copper-catalyzed azide-alkyne [3 + 2] cycloaddition for 5b. All of these transformations occurred under mild conditions, and the corresponding DDSQs were prepared in very high yields. Beyond the enhanced multivalency as compared to the previously described disubstituted D2T8 structures, the reported tetrafunctional DDSQs are formed as a single isomer and readily isolated in very high yields. Moreover, the tetra-azido DDSQ 5b constitutes a multipurpose nanobuilding block for the further preparation of new inorganic-organic hybrid materials where the covalent incorporation of a DDSQ moiety brings valuable properties.
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Affiliation(s)
- Yujia Liu
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with Institute Charles Gerhardt, Gunma University, Kiryu 376-8515, Japan.,Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
| | - Mana Kigure
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan
| | - Kyoka Koizumi
- 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 Institute Charles Gerhardt, Gunma University, Kiryu 376-8515, Japan.,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 Institute Charles Gerhardt, Gunma University, Kiryu 376-8515, Japan.,Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM-ENSCM, 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 05, France
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7
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Xia S, Yang Y, Zhu W, Lü C. Quaternized polyhedral oligomeric silsesquioxanes stabilized Pd nanoparticles as efficient nanocatalysts for reduction reaction. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124110] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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8
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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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9
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Synthesis and Characterization of Unsymmetrical Double-Decker Siloxane (Basket Cage). Molecules 2019; 24:molecules24234252. [PMID: 31766625 PMCID: PMC6930635 DOI: 10.3390/molecules24234252] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 11/19/2019] [Accepted: 11/20/2019] [Indexed: 01/27/2023] Open
Abstract
The one-pot synthesis of an unsymmetrical double-decker siloxane with a novel structure via the reaction of double-decker tetrasodiumsilanolate with 1 equiv. of dichlorotetraphenyldisiloxane in the presence of an acid is reported herein for the first time. The target compound bearing all phenyl substituents on the unsymmetrical siloxane structure was successfully obtained, as confirmed by 1H-NMR, 13C-NMR, 29Si-NMR, IR, MALDI-TOF, and X-ray crystallography analyses. Additionally, the thermal properties of the product were evaluated by TG/DTA and compared with those of other siloxane cage compounds.
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Calabrese C, Fusaro L, Liotta LF, Giacalone F, Comès A, Campisciano V, Aprile C, Gruttadauria M. Efficient Conversion of Carbon Dioxide by Imidazolium‐Based Cross‐Linked Nanostructures Containing Polyhedral Oligomeric Silsesquioxane (POSS) Building Blocks. Chempluschem 2019; 84:1536-1543. [DOI: 10.1002/cplu.201900408] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 08/23/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Carla Calabrese
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
- Laboratory of Applied Materials Chemistry (CMA)University of Namur 61 rue de Bruxelles Namur 5000 Belgium
| | - Luca Fusaro
- Laboratory of Applied Materials Chemistry (CMA)University of Namur 61 rue de Bruxelles Namur 5000 Belgium
| | - Leonarda Francesca Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR via Ugo La Malfa 153 90146 Palermo Italy
| | - Francesco Giacalone
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Adrien Comès
- Laboratory of Applied Materials Chemistry (CMA)University of Namur 61 rue de Bruxelles Namur 5000 Belgium
| | - Vincenzo Campisciano
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Carmela Aprile
- Laboratory of Applied Materials Chemistry (CMA)University of Namur 61 rue de Bruxelles Namur 5000 Belgium
| | - Michelangelo Gruttadauria
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
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11
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Ampawa S, Krittametaporn N, Ungpittagul T, Phomphrai K, Sangtrirutnugul P. Triazole‐based ligands functionalized silica: Effects of ligand denticity and donors on catalytic oxidation activity of Pd nanoparticles. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5238] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Supanan Ampawa
- Center of Excellence for Innovation in Chemistry (PERCH‐CIC), Center for Catalysis, Department of Chemistry, Faculty of ScienceMahidol University 272 Rama VI Rd Bangkok 10400 Thailand
| | - Nuttaporn Krittametaporn
- Center of Excellence for Innovation in Chemistry (PERCH‐CIC), Center for Catalysis, Department of Chemistry, Faculty of ScienceMahidol University 272 Rama VI Rd Bangkok 10400 Thailand
| | - Thasanaporn Ungpittagul
- Department of Materials Science and Engineering, School of Molecular Science and EngineeringVidyasirimedhi Institute of Science and Technology Rayong 21210 Thailand
| | - Khamphee Phomphrai
- Department of Materials Science and Engineering, School of Molecular Science and EngineeringVidyasirimedhi Institute of Science and Technology Rayong 21210 Thailand
| | - Preeyanuch Sangtrirutnugul
- Center of Excellence for Innovation in Chemistry (PERCH‐CIC), Center for Catalysis, Department of Chemistry, Faculty of ScienceMahidol University 272 Rama VI Rd Bangkok 10400 Thailand
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12
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Calabrese C, Campisciano V, Siragusa F, Liotta LF, Aprile C, Gruttadauria M, Giacalone F. SBA‐15/POSS‐Imidazolium Hybrid as Catalytic Nanoreactor: the role of the Support in the Stabilization of Palladium Species for C−C Cross Coupling Reactions. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900350] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Carla Calabrese
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
- Laboratory of Applied Materials Chemistry (CMA)University of Namur 61 rue de Bruxelles 5000 Namur Belgium
| | - Vincenzo Campisciano
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Fabiana Siragusa
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Leonarda F. Liotta
- Istituto per lo Studio dei Materiali Nanostrutturati ISMN-CNR Via Ugo La Malfa 153 90146 Palermo Italy
| | - Carmela Aprile
- Laboratory of Applied Materials Chemistry (CMA)University of Namur 61 rue de Bruxelles 5000 Namur Belgium
| | - Michelangelo Gruttadauria
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
| | - Francesco Giacalone
- Department of Biological, Chemical and Pharmaceutical Sciences and TechnologiesUniversity of Palermo Viale delle Scienze, Ed. 17 90128 Palermo Italy
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Dong F, Lu L, Ha C. Silsesquioxane‐Containing Hybrid Nanomaterials: Fascinating Platforms for Advanced Applications. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201800324] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Fuping Dong
- Department of Polymer Materials and EngineeringCollege of Materials and MetallurgyGuizhou University Guiyang 550025 China
| | - Liangyu Lu
- Department of Polymer Materials and EngineeringCollege of Materials and MetallurgyGuizhou University Guiyang 550025 China
| | - Chang‐Sik Ha
- Department of Polymer Science and EngineeringPusan National University Busan 46241 Republic of Korea
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14
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An Y, Yu J, Han Y. Recent Advances in the Chemistry of
N
‐Heterocyclic‐Carbene‐Functionalized Metal‐Nanoparticles and Their Applications. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800450] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yuan‐Yuan An
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University Xi'an Shaanxi 710127 China
| | - Jian‐Gang Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University Xi'an Shaanxi 710127 China
- College of Chemical and Material Engineering, Quzhou University Quzhou, Zhejiang 324000 China
| | - Ying‐Feng Han
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Materials Science, Northwest University Xi'an Shaanxi 710127 China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 China
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15
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Chanmungkalakul S, Ervithayasuporn V, Boonkitti P, Phuekphong A, Prigyai N, Kladsomboon S, Kiatkamjornwong S. Anion identification using silsesquioxane cages. Chem Sci 2018; 9:7753-7765. [PMID: 30429984 PMCID: PMC6194494 DOI: 10.1039/c8sc02959h] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 09/13/2018] [Indexed: 11/29/2022] Open
Abstract
Anthracene-conjugated octameric silsesquioxane cages thermodynamically display intramolecular excimer formation, which can be used to identify anions through the change of fluorescence.
Anthracene-conjugated octameric silsesquioxane (AnSQ) cages, prepared via Heck coupling between octavinylsilsesquioxane (OVS) and 9-bromoanthracene, thermodynamically display intramolecular excimer emissions. More importantly, these hosts are sensitive to each anionic guest, thereby resulting in change of anthracene excimer formation, displaying the solvent-dependent fluorescence and allowing us to distinguish up to four ions such as F–, OH–, CN– and PO43– by fluorescence spectroscopy. Depending on the solvent polarity, for example, both F– and CN– quenched the fluorescence emission intensity in THF, but only F– could enhance the fluorescence in all other solvents. The presence of PO43– results in fluorescence enhancements in high polarity solvents such as DMSO, DMF, and acetone, while OH– induces enhancements only in low polarity solvents (e.g. DCM and toluene). A picture of the anion recognizing ability of AnSQ was obtained through principal component analysis (PCA) with NMR and FTIR confirming the presence of host–guest interactions. Computational modeling studies demonstrate the conformation of host–guest complexation and also the change of excimer formation. Detection of F–, CN– and OH– by AnSQ hosts in THF is noticeable with the naked eye, as indicated by strong color changes arising from charge transfer complex formation upon anion addition.
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Affiliation(s)
- Supphachok Chanmungkalakul
- Department of Chemistry , Center of Excellence for Innovation in Chemistry (PERCH-CIC) , Center for Inorganic and Materials Chemistry , Faculty of Science , Mahidol University , Rama VI Road, Ratchathewi , Bangkok 10400 , Thailand . ;
| | - 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 , Rama VI Road, Ratchathewi , Bangkok 10400 , Thailand . ;
| | - Patcharaporn Boonkitti
- Department of Chemistry , Center of Excellence for Innovation in Chemistry (PERCH-CIC) , Center for Inorganic and Materials Chemistry , Faculty of Science , Mahidol University , Rama VI Road, Ratchathewi , Bangkok 10400 , Thailand . ;
| | - Alisa Phuekphong
- Department of Chemistry , Center of Excellence for Innovation in Chemistry (PERCH-CIC) , Center for Inorganic and Materials Chemistry , Faculty of Science , Mahidol University , Rama VI Road, Ratchathewi , Bangkok 10400 , Thailand . ;
| | - Nicha Prigyai
- Department of Chemistry , Center of Excellence for Innovation in Chemistry (PERCH-CIC) , Center for Inorganic and Materials Chemistry , Faculty of Science , Mahidol University , Rama VI Road, Ratchathewi , Bangkok 10400 , Thailand . ;
| | - Sumana Kladsomboon
- Department of Radiological Technology , Faculty of Medical Technology , Mahidol University , Nakhon Pathom 73170 , Thailand
| | - Suda Kiatkamjornwong
- Faculty of Science , Chulalongkorn University , Phayathai Road , Bangkok 10330 , Thailand.,FRST , Division of Science , The Royal Society of Thailand , Sanam Suepa , Dusit , Bangkok 10300 , Thailand
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Kunthom R, Piyanuch P, Wanichacheva N, Ervithayasuporn V. Cage-like silsesequioxanes bearing rhodamines as fluorescence Hg2+ sensors. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.12.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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17
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Chanmungkalakul S, Ervithayasuporn V, Hanprasit S, Masik M, Prigyai N, Kiatkamjornwong S. Silsesquioxane cages as fluoride sensors. Chem Commun (Camb) 2018; 53:12108-12111. [PMID: 29072723 DOI: 10.1039/c7cc06647c] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pyrene functionalized silsesquioxane cages (PySQ) not only provide significant fluorescence from pyrene-pyrene excimers with a very large Stokes shift (Δλ = 143 nm, 69 930 cm-1) in DMSO but also exhibit fluoride capture results coincidentally with a π-π* fluorescence enhancement. On the other hand, PySQ-F- in THF significantly exhibits π-π* fluorescence quenching and a color change can be observed with the naked eye from light yellow to deep orange by forming a charge-transfer (CT) complex among the pyrenyl rings. Moreover, PySQ selectively captures F- with a response time of <2 min and with a very low detection limit (1.61 ppb), while 19F NMR is used to confirm encapsulation of F- with Δδ = 19 ppm.
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Affiliation(s)
- Supphachok Chanmungkalakul
- Department of Chemistry, Center of Excellence for Innovation in Chemistry (PERCH-CIC), and Center of Intelligent Materials and Systems, Nanotec Center of Excellence, Faculty of Science, Mahidol University, Rama VI road, Ratchathewi, Bangkok 10400, Thailand.
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Somjit V, Wong Chi Man M, Ouali A, Sangtrirutnugul P, Ervithayasuporn V. Heterogeneous Pd/POSS Nanocatalysts for C-C Cross-Coupling Reactions. ChemistrySelect 2018. [DOI: 10.1002/slct.201702597] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vetiga Somjit
- Department of Chemistry; Center of Excellence for Innovation in Chemistry (PERCH-CIC); and Center for Inorganic and Materials Chemistry, Faculty of Science; Mahidol University; Rama VI road, Ratchathewi District Bangkok 10400 Thailand
| | - Michel Wong Chi Man
- Institut Charles Gerhardt Montpellier; UMR5253 CNRS-ENSCM-UM; 8, rue de l'école normale 34296 Montpellier France
| | - Armelle Ouali
- Institut Charles Gerhardt Montpellier; UMR5253 CNRS-ENSCM-UM; 8, rue de l'école normale 34296 Montpellier France
| | - Preeyanuch Sangtrirutnugul
- Department of Chemistry; Center of Excellence for Innovation in Chemistry (PERCH-CIC); and Center for Inorganic and Materials Chemistry, Faculty of Science; Mahidol University; Rama VI road, Ratchathewi District Bangkok 10400 Thailand
| | - Vuthichai Ervithayasuporn
- Department of Chemistry; Center of Excellence for Innovation in Chemistry (PERCH-CIC); and Center for Inorganic and Materials Chemistry, Faculty of Science; Mahidol University; Rama VI road, Ratchathewi District Bangkok 10400 Thailand
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Luanphaisarnnont T, Hanprasit S, Somjit V, Ervithayasuporn V. Chiral Pyrrolidine Bridged Polyhedral Oligomeric Silsesquioxanes as Heterogeneous Catalysts for Asymmetric Michael Additions. Catal Letters 2017. [DOI: 10.1007/s10562-017-2286-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Sangtrirutnugul P, Chaiprasert T, Hunsiri W, Jitjaroendee T, Songkhum P, Laohhasurayotin K, Osotchan T, Ervithayasuporn V. Tunable Porosity of Cross-Linked-Polyhedral Oligomeric Silsesquioxane Supports for Palladium-Catalyzed Aerobic Alcohol Oxidation in Water. ACS APPLIED MATERIALS & INTERFACES 2017; 9:12812-12822. [PMID: 28339183 DOI: 10.1021/acsami.7b03910] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Polyhedral oligomeric silsesquioxane (POSS)-based materials, poly-POSS-Tn [n = 8 (1), 10 (2), 12 (3), and mix (4)], were prepared in high yields via free radical polymerization of corresponding pure forms of methacrylate-functionalized POSS monomers, MMA-POSS-Tn (n = 8, 10, 12), and the mixture form, MMA-POSS-Tmix. Powder X-ray diffraction (XRD) spectra and BET analysis indicate that 1-4 are amorphous materials with high surface areas (683-839 m2 g-1). The surface areas and total pore volumes follow the trend: poly-POSS-T12 > poly-POSS-T10 > poly-POSS-Tmix > poly-POSS-T8. In addition, on the basis of Barrett-Joyner-Halenda (BJH) analysis, poly-POSS-T12 contains the highest amount of mesopores. The Pd nanoparticles immobilized on poly-POSS-Tn [n = 8 (5), 10 (6), 12 (7), and mix (8)] are well dispersed with 4-6 wt % Pd content and similar average particle sizes of 6.2-6.5 nm, according to transmission electron microscopy-energy dispersive X-ray analysis (TEM-EDX) and microwave plasma-atomic emission spectroscopy (MP-AES). At 90 °C, the stabilized Pd nanoparticles in 5-8 catalyzed aerobic oxidation of benzyl alcohol to benzaldehyde in 72-100% yields at 6 h using a mixture of a H2O/Pluronic (P123) solution. The PdNp@poly-POSS-T8 catalyst (5) exhibited the lowest catalytic activity, as a result of its lowest surface areas, total pore volumes, and amounts of mesopores. With the catalyst 8, various benzyl alcohol derivatives were converted to the corresponding aldehydes in good to excellent yields. However, with alcoholic substrates featuring electron-withdrawing substituents, high conversions were achieved with 1 equiv of K2CO3 additive and longer reaction times.
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Affiliation(s)
| | | | | | | | - Patsaya Songkhum
- National Nanotechnology Center, National Science and Technology Development Agency , Phaholyothin road, Patumthani 12120, Thailand
| | - Kritapas Laohhasurayotin
- National Nanotechnology Center, National Science and Technology Development Agency , Phaholyothin road, Patumthani 12120, Thailand
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