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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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2
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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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3
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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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Raghuvanshi A, Strohmann C, Tissot JB, Clément S, Mehdi A, Richeter S, Viau L, Knorr M. Assembly of Coordination Polymers Using Thioether-Functionalized Octasilsesquioxanes: Occurrence of (CuX)
n
Clusters (X=Br and I) within 3D-POSS Networks. Chemistry 2017; 23:16479-16483. [DOI: 10.1002/chem.201704911] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Abhinav Raghuvanshi
- Institut UTINAM UMR-CNRS 6213; Université Bourgogne Franche-Comté; 16 Route de Gray 25030 Besançon Cedex France
| | - Carsten Strohmann
- Anorganische Chemie; Technische Universität Dortmund; Otto-Hahn-Strasse 6 44227 Dortmund Germany
| | - Jean-Baptiste Tissot
- Institut Charles Gerhardt UMR 5253; Université Montpellier; Place Eugène Bataillon 34095 Montpellier Cedex 5 France
| | - Sébastien Clément
- Institut Charles Gerhardt UMR 5253; Université Montpellier; Place Eugène Bataillon 34095 Montpellier Cedex 5 France
| | - Ahmad Mehdi
- Institut Charles Gerhardt UMR 5253; Université Montpellier; Place Eugène Bataillon 34095 Montpellier Cedex 5 France
| | - Sébastien Richeter
- Institut Charles Gerhardt UMR 5253; Université Montpellier; Place Eugène Bataillon 34095 Montpellier Cedex 5 France
| | - Lydie Viau
- Institut UTINAM UMR-CNRS 6213; Université Bourgogne Franche-Comté; 16 Route de Gray 25030 Besançon Cedex France
| | - Michael Knorr
- Institut UTINAM UMR-CNRS 6213; Université Bourgogne Franche-Comté; 16 Route de Gray 25030 Besançon Cedex France
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Kunthom R, Jaroentomeechai T, Ervithayasuporn V. Polyhedral oligomeric silsesquioxane (POSS) containing sulfonic acid groups as a metal-free catalyst to prepare polycaprolactone. POLYMER 2017. [DOI: 10.1016/j.polymer.2016.11.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Kowalewska A, Nowacka M, Maniukiewicz W. Octa(3-mercaptopropyl)octasilsesquioxane – A reactive nanocube of unique self-assembled packing morphology. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.02.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Murakami S, Egawa Y, Kuramochi C, Takeda N, Unno M. Cyclic Silanols with Long Alkyl Chains. CHEM LETT 2016. [DOI: 10.1246/cl.151143] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shinji Murakami
- Department of Chemistry and Chemical Biology, Faculty of Science and Technology, Gunma University
| | - Yasunobu Egawa
- Department of Chemistry and Chemical Biology, Faculty of Science and Technology, Gunma University
| | - Chika Kuramochi
- Department of Chemistry and Chemical Biology, Faculty of Science and Technology, Gunma University
| | - Nobuhiro Takeda
- Department of Chemistry and Chemical Biology, Faculty of Science and Technology, Gunma University
| | - Masafumi Unno
- Department of Chemistry and Chemical Biology, Faculty of Science and Technology, Gunma University
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8
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Sodkhomkhum R, Ervithayasuporn V. Synthesis of poly(siloxane/double-decker silsesquioxane) via dehydrocarbonative condensation reaction and its functionalization. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.01.044] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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9
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Hanprasit S, Tungkijanansin N, Prompawilai A, Eangpayung S, Ervithayasuporn V. Synthesis and isolation of non-chromophore cage-rearranged silsesquioxanes from base-catalyzed reactions. Dalton Trans 2016; 45:16117-16120. [DOI: 10.1039/c6dt02585d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbonate (CO32−) anion as a stronger base but poorer in nucleophilicity gives rise exclusively to a cage expansion of unsubstituted products.
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Affiliation(s)
- Sasikarn Hanprasit
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Center for Catalysis
- Center for Inorganic and Materials Chemistry
- and Center of Intelligent Materials and Systems
| | - Nuttanee Tungkijanansin
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Center for Catalysis
- Center for Inorganic and Materials Chemistry
- and Center of Intelligent Materials and Systems
| | - Arisa Prompawilai
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Center for Catalysis
- Center for Inorganic and Materials Chemistry
- and Center of Intelligent Materials and Systems
| | - Supattra Eangpayung
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Center for Catalysis
- Center for Inorganic and Materials Chemistry
- and Center of Intelligent Materials and Systems
| | - Vuthichai Ervithayasuporn
- Department of Chemistry
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Center for Catalysis
- Center for Inorganic and Materials Chemistry
- and Center of Intelligent Materials and Systems
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Chimjarn S, Kunthom R, Chancharone P, Sodkhomkhum R, Sangtrirutnugul P, Ervithayasuporn V. Synthesis of aromatic functionalized cage-rearranged silsesquioxanes (T8, T10, and T12) via nucleophilic substitution reactions. Dalton Trans 2015; 44:916-9. [PMID: 25476722 DOI: 10.1039/c4dt02941k] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Organic-inorganic hybrid nano-building blocks of aromatic nitro-, aldehyde-, and bromo-functionalized polyhedral oligomeric silsesquioxanes were easily prepared through nucleophilic substitutions, starting from the reactions between octakis(3-chloropropyl)octasilsesquioxane and phenoxide derivatives. These phenoxide anions not only supply the substitution functions to a silsesquioxane cage, but can also induce a cage-rearrangement leading to the formation of octa-, deca-, and dodecahedral silsesquioxane cages.
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Affiliation(s)
- Supansa Chimjarn
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Ratchathewi, Bangkok 10400, Thailand.
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11
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Liu L, Lee SJ, Lee ME, Kang P, Choi MG. Syntheses of phosphorylcholine-substituted silsesquioxanes via thiol-ene ‘click’ reaction. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.02.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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12
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Ervithayasuporn V, Chimjarn S. Synthesis and isolation of methacrylate- and acrylate-functionalized polyhedral oligomeric silsesquioxanes (T8, T10, and T12) and characterization of the relationship between their chemical structures and physical properties. Inorg Chem 2013; 52:13108-12. [PMID: 24175859 DOI: 10.1021/ic401994m] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Novel organic-inorganic hybrid nanobuilding blocks of methacrylate- and acrylate-functionalized polyhedral oligomeric silsesquioxanes were easily prepared via nucleophilic substitution on octakis(3-chloropropyl)octasilsesquioxane, using sodium methacrylate and sodium acrylate, respectively. From a practical standpoint, these cage-rearranged silsesquioxanes (T8, T10, and T12) could be readily isolated in their pure form with conventional silica gel column chromatography. Octakis(3-propyl methacrylate)octasilsesquioxane (T8) is a colorless, crystalline solid with a melting point of 66.7-67.2 °C, while other cage products are colorless viscous liquids at room temperature. Moreover, we report that the chemical structure/physical property relationship of silsesquioxane cages not only is dependent on the symmetry of the inorganic silsesquioxane core at a given temperature but also is dictated by the organic substituent mobility. Structures of the products were confirmed by (1)H, (13)C, and (29)Si NMR spectroscopy and high resolution electrospray ionization mass spectrometry analysis.
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Affiliation(s)
- Vuthichai Ervithayasuporn
- Department of Chemistry, Center of Excellence for Innovation in Chemistry (PERCH-CIC), and ‡Capability Building Unit for Nanoscience and Nanotechnology, Faculty of Science, Mahidol University , Rama VI Road, Ratchathewi, Bangkok 10400, Thailand
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Ervithayasuporn V, Sodkhomkhum R, Teerawatananond T, Phurat C, Phinyocheep P, Somsook E, Osotchan T. Unprecedented Formation ofcis- andtrans-Di[(3-chloropropyl)isopropoxysilyl]-Bridged Double-Decker Octaphenylsilsesquioxanes. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300283] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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Ervithayasuporn V, Pornsamutsin N, Prangyoo P, Sammawutthichai K, Jaroentomeechai T, Phurat C, Teerawatananond T. One-pot synthesis of halogen exchanged silsesquioxanes: octakis(3-bromopropyl)octasilsesquioxane and octakis(3-iodopropyl)octasilsesquioxane. Dalton Trans 2013; 42:13747-53. [DOI: 10.1039/c3dt51373d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Fabritz S, Hörner S, Avrutina O, Kolmar H. Bioconjugation on cube-octameric silsesquioxanes. Org Biomol Chem 2013; 11:2224-36. [DOI: 10.1039/c2ob26807h] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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16
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Jaroentomeechai T, Yingsukkamol PK, Phurat C, Somsook E, Osotchan T, Ervithayasuporn V. Synthesis and reactivity of nitrogen nucleophiles-induced cage-rearrangement silsesquioxanes. Inorg Chem 2012; 51:12266-72. [PMID: 23134535 DOI: 10.1021/ic3015145] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Novel phthalimide and o-sulfobenzimide-functionalized silsesquioxanes were successfully synthesized via nucleophilic substitution reactions from octakis(3-chloropropyl)octasilsesquioxane. Surprisingly, the formation of deca- and dodecasilsesquioxanes cages was discovered during substitution with phthalimide, but only octasilsesquioxane maintained a cage in the o-sulfobenzimide substitution reaction. Moreover, we report the electronic effect of nitrogen nucleophiles to promote cage-rearrangement of inorganic silsesquioxane core for the first time. Structures of products were confirmed by (1)H, (13)C, and (29)Si NMR spectroscopy, ESI-MS analysis, and single-crystal X-ray diffraction.
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Affiliation(s)
- Thapakorn Jaroentomeechai
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), ‡Department of Physics, and §Capability Building Unit for Nanoscience and Nanotechnology, Faculty of Science, Mahidol University , Rama VI road, Ratchathewi, Bangkok 10400, Thailand
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17
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Fouquet T, Phan TNT, Charles L. Tandem mass spectrometry of electrosprayed polyhedral oligomeric silsesquioxane compounds with different substituents. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2012; 26:765-774. [PMID: 22368056 DOI: 10.1002/rcm.6159] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
RATIONALE Polyhedral oligomeric silsesquioxanes (POSSs), defined as [RSiO(3/2) ](n) with R designating an organic substituent, were considered here as models of highly cross-linked polysiloxanes, to be further used as references in tandem mass spectrometric characterization of plasma polymers of hexamethyldisiloxane, expected to be composed of organic polydimethylsiloxane (PDMS) and inorganic (SiO(x) ) silica-based parts. The collision-induced dissociation (CID) behavior of [RSiO(3/2) ](8) compounds was then studied as a function of the R substituent. METHODS POSS compounds were produced in the gas phase as ammonium adducts and the product ions generated upon CID, amongst which was the protonated precursor, were accurately mass measured in an orthogonal acceleration time-of-flight mass analyzer. RESULTS The presence of eight propylamine substituents was shown to induce sequential dehydration of the protonated precursor, ultimately leading to a complete unfolding of the POSS cage. Similar opening of the octahedron structure in the protonated molecule substituted with OSi(CH(3) )(3) , OSiH(CH(3) )(2) or OH (formed upon methanolysis of dimethylsiloxy substituents) was proposed to account for the product ions generated during their CID. Sequential charge-remote transfers of a methyl group (and of H in the case of dimethylsiloxy substituents) from one substituent group to a neighboring one was shown to lead to a linear co-oligomeric chain composed of randomly distributed siloxy-based monomers. CONCLUSIONS All the peaks observed in CID could be accounted for by applying dissociation reactions typically occurring in protonated polysiloxane-like oligomers. The large number of product ions observed in MS/MS was found to result from the variety of possible structural rearrangements, producing numerous linear isomeric forms of the dissociating species.
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Affiliation(s)
- Thierry Fouquet
- Aix-Marseille Université - CNRS, UMR 7273: Institut de Chimie Radicalaire, Spectrométries Appliquées à la Chimie Structurale, F-13397, Marseille Cedex 20, France
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18
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Bruña S, Nieto D, González-Vadillo AM, Perles J, Cuadrado I. Cubic Octasilsesquioxanes, Cyclotetrasiloxanes, and Disiloxanes Maximally Functionalized with Silicon-Bridged Interacting Triferrocenyl Units. Organometallics 2012. [DOI: 10.1021/om300101w] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Sonia Bruña
- Departamento de Química
Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid,
Spain
| | - Daniel Nieto
- Departamento de Química
Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid,
Spain
| | - Ana M González-Vadillo
- Departamento de Química
Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid,
Spain
| | - Josefina Perles
- Servicio Interdepartamental
de Investigación (SIDI), Universidad Autónoma de Madrid, Madrid, Spain
| | - Isabel Cuadrado
- Departamento de Química
Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid,
Spain
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19
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Tanaka K, Chujo Y. Advanced functional materials based on polyhedral oligomeric silsesquioxane (POSS). ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c1jm14231c] [Citation(s) in RCA: 403] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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