1
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Watanabe N, Imoto H, Naka K. Synthesis of a series of octaalkoxy-substituted cage silsesquioxanes catalyzed by zinc acetate. Dalton Trans 2024; 53:14986-14994. [PMID: 38817162 DOI: 10.1039/d4dt01008f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Octaalkoxy-substituted polyhedral oligomeric silsesquioxane (8RO-POSS) is an attractive starting material for producing silicone resins. However, polymers derived from 8RO-POSS via the sol-gel process have seldom been reported owing to their synthetic difficulty. In this study, we attempted to use zinc acetate (Zn(OAc)2) as the catalyst for the synthesis of a series of 8RO-POSS from octahydrido-POSS (8H-POSS). The reaction conditions were optimized using heptaisobutyl monohydride-POSS (7iBu1H-POSS) as a model reaction. The desired product was obtained in 96% yield under optimized conditions. The alkoxylation of 8H-POSS was performed using methanol (MeOH), ethanol (EtOH), isopropyl alcohol (i-PrOH), and tert-butyl alcohol (t-BuOH) in the presence of Zn(OAc)2 as the catalyst. Although octamethoxy-POSS (8MeO-POSS) was isolated in the presence of a byproduct, octaethoxy-POSS (8EtO-POSS) and octaisopropoxy-POSS (8iPrO-POSS) were obtained in high yields. The degree of alkoxylation was 55% in the case of using t-BuOH. The structures of 8MeO-POSS, 8EtO-POSS, and 8iPrO-POSS were confirmed by FT-IR, 1H-, and 29Si-NMR and MALDI-TOF-MS analyses. Compared to the random silicate obtained by base-treated tetramethoxysilane (TMOS), base-treated 8EtO-POSS and 8iPrO-POSS showed that the cage structures were maintained even after the formation of condensed silicate structures via a condensation reaction.
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Affiliation(s)
- Naoki Watanabe
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto 606-8585, Japan.
- Materials Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
- JNC Petrochemical Corporation, 5-1, Goikaigan, Ichihara, Chiba 290-8551, Japan
| | - Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto 606-8585, Japan.
- Materials Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto 606-8585, Japan.
- Materials Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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2
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Egawa Y, Kobuna C, Takeda N, Unno M. Synthesis of Janus cube containing Si–H moieties. MENDELEEV COMMUNICATIONS 2022. [DOI: 10.1016/j.mencom.2022.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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3
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Shimojima A, Kuroda K. Alkoxy- and Silanol-Functionalized Cage-Type Oligosiloxanes as Molecular Building Blocks to Construct Nanoporous Materials. Molecules 2020; 25:molecules25030524. [PMID: 31991787 PMCID: PMC7038179 DOI: 10.3390/molecules25030524] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 01/22/2020] [Accepted: 01/23/2020] [Indexed: 01/21/2023] Open
Abstract
Siloxane-based materials have a wide range of applications. Cage-type oligosiloxanes have attracted significant attention as molecular building blocks to construct novel siloxane-based nanoporous materials with promising applications such as in catalysis and adsorption. This paper reviews recent progress in the preparation of siloxane-based nanoporous materials using alkoxy- and silanol-functionalized cage siloxanes. The arrangement of cage siloxanes units is controlled by various methods, including amphiphilic self-assembly, hydrogen bonding of silanol groups, and regioselective functionalization, toward the preparation of ordered nanoporous siloxane-based materials.
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Affiliation(s)
- Atsushi Shimojima
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
- Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo 169-0051, Japan
- Correspondence: (A.S.); (K.K.)
| | - Kazuyuki Kuroda
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
- Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo 169-0051, Japan
- Correspondence: (A.S.); (K.K.)
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4
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Chen C, Chao P, Chung Y, Wu Y, Lin J. Spectroscopically tracing the reactions of octahydridosilsesquioxane (H
8
Si
8
O
12
) with organic molecules. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201900196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ching‐Wen Chen
- Department of ChemistryNational Cheng Kung University Tainan Taiwan ROC
| | - Pei‐Yu Chao
- Department of ChemistryNational Cheng Kung University Tainan Taiwan ROC
| | - Yu‐Yin Chung
- Department of ChemistryNational Cheng Kung University Tainan Taiwan ROC
| | - You‐Zhen Wu
- Department of ChemistryNational Cheng Kung University Tainan Taiwan ROC
| | - Jong‐Liang Lin
- Department of ChemistryNational Cheng Kung University Tainan Taiwan ROC
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5
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Saito S, Wada H, Shimojima A, Kuroda K. Synthesis of Zeolitic Macrocycles Using Site-Selective Condensation of Regioselectively Difunctionalized Cubic Siloxanes. Inorg Chem 2018; 57:14686-14691. [DOI: 10.1021/acs.inorgchem.8b02402] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Shohei Saito
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Hiroaki Wada
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Atsushi Shimojima
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
| | - Kazuyuki Kuroda
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
- Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo 169-0051, Japan
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6
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Shang X, Cao X, Ma Y, Kumaravel JJ, Zheng K, Zhang J, Zhang R. Diphenylsiloxane-bridged ladder-like hydrido-polysiloxane and the derivatisation by triphenylsiloxy substitution. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.07.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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8
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Saito S, Yamasue N, Wada H, Shimojima A, Kuroda K. Cubic Siloxanes with Both Si-H and Si-OtBu Groups for Site-Selective Siloxane Bond Formation. Chemistry 2016; 22:13857-13864. [PMID: 27535611 DOI: 10.1002/chem.201601906] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Indexed: 11/11/2022]
Abstract
Cage-type siloxanes have attracted increasing attention as building blocks for silica-based nanomaterials as their corners can be modified with various functional groups. Cubic octasiloxanes incorporating both Si-H and Si-OtBu groups [(tBuO)n H8-n Si8 O12 ; n=1, 2 or 7] have been synthesized by the reaction of octa(hydridosilsesquioxane) (H8 Si8 O12 ) and tert-butyl alcohol in the presence of a Et2 NOH catalyst. The Si-H and Si-OtBu groups are useful for site-selective formation of Si-O-Si linkages without cage structure deterioration. The Si-H group can be selectively hydrolyzed to form a Si-OH group in the presence of Et2 NOH, enabling the formation of the monosilanol compound (tBuO)7 (HO)Si8 O12 . The Si-OH group can be used for either intermolecular condensation to form a dimeric cage compound or silylation to introduce new reaction sites. Additionally, the alkoxy groups of (tBuO)7 HSi8 O12 can be treated with organochlorosilanes in the presence of a BiCl3 catalyst to form Si-O-Si linkages, while the Si-H group remains intact. These results indicate that such bifunctional cage siloxanes allow for stepwise Si-O-Si bond formation to design new siloxane-based nanomaterials.
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Affiliation(s)
- Shohei Saito
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, Okubo-3, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Nao Yamasue
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, Okubo-3, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Hiroaki Wada
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, Okubo-3, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Atsushi Shimojima
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, Okubo-3, Shinjuku-ku, Tokyo, 169-8555, Japan.
| | - Kazuyuki Kuroda
- Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, Okubo-3, Shinjuku-ku, Tokyo, 169-8555, Japan. .,Kagami Memorial Research Institute for Materials Science and Technology, Nishiwaseda-2, Shinjuku-ku, Tokyo, 169-0051, Japan.
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9
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Akbari A, Arsalani N, Amini M, Jabbari E. Cube-octameric silsesquioxane-mediated cargo copper Schiff base for efficient click reaction in aqueous media. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2015.12.022] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Vasconcellos Dias M, Saraiva MS, Ferreira P, Calhorda MJ. Catalytic Activity of Molybdenum(II) Complexes in Homogeneous and Heterogeneous Conditions. Organometallics 2015. [DOI: 10.1021/om501068q] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maria Vasconcellos Dias
- Departamento
de Química e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Marta S. Saraiva
- Departamento
de Química e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Paula Ferreira
- CICECO - Aveiro
Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Maria José Calhorda
- Departamento
de Química e Bioquímica, CQB, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
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11
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Wada Y, Iyoki K, Sugawara-Narutaki A, Okubo T, Shimojima A. Diol-Linked Microporous Networks of Cubic Siloxane Cages. Chemistry 2012. [DOI: 10.1002/chem.201202883] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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12
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Dias Filho NL, Portugal FCM, Nogueira JMF, Brandão P, Félix V, Vaz PD, Nunes CD, Veiros LF, Brito MJVD, Calhorda MJ. An Oligosilsesquioxane Cage Functionalized with Molybdenum(II) Organometallic Fragments. Organometallics 2012. [DOI: 10.1021/om3003043] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Newton L. Dias Filho
- Faculdade de Engenharia de Ilha
Solteira, UNESP-Univ Estadual Paulista, Departamento de Fı́sica e Quı́mica, Av. Brasil Centro, 56 CEP 15385-000, Ilha Solteira SP, Brasil
| | - Fátima C. M. Portugal
- Universidade de Lisboa, Faculdade de Ciências, Departamento de Quı́mica e Bioquı́mica, Campo Grande, 1749-016 Lisboa, Portugal
- Universidade de Lisboa,
Faculdade de Ciências, Centro
de Química e Bioquı́mica,
Campo Grande, 1749-016 Lisboa, Portugal
| | - J. M. F. Nogueira
- Universidade de Lisboa, Faculdade de Ciências, Departamento de Quı́mica e Bioquı́mica, Campo Grande, 1749-016 Lisboa, Portugal
- Universidade de Lisboa,
Faculdade de Ciências, Centro
de Química e Bioquı́mica,
Campo Grande, 1749-016 Lisboa, Portugal
| | - Paula Brandão
- Departamento de
Quı́mica, Universidade de Aveiro, CICECO, 3810-193 Aveiro, Portugal
| | - Vitor Félix
- Departamento de
Quı́mica, Universidade de Aveiro, CICECO, 3810-193 Aveiro, Portugal
- Secção Autónoma de Ciências da Saúde, Universidade de Aveiro, 3810-193 Aveiro,
Portugal
| | - Pedro D. Vaz
- Universidade de Lisboa, Faculdade de Ciências, Departamento de Quı́mica e Bioquı́mica, Campo Grande, 1749-016 Lisboa, Portugal
- Universidade de Lisboa,
Faculdade de Ciências, Centro
de Química e Bioquı́mica,
Campo Grande, 1749-016 Lisboa, Portugal
| | - Carla D. Nunes
- Universidade de Lisboa, Faculdade de Ciências, Departamento de Quı́mica e Bioquı́mica, Campo Grande, 1749-016 Lisboa, Portugal
- Universidade de Lisboa,
Faculdade de Ciências, Centro
de Química e Bioquı́mica,
Campo Grande, 1749-016 Lisboa, Portugal
| | - Luis F. Veiros
- Centro de Quı́mica Estrutural,
Instituto
Superior Técnico, Universidade Técnica de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
| | - Maria J. Villa de Brito
- Universidade de Lisboa, Faculdade de Ciências, Departamento de Quı́mica e Bioquı́mica, Campo Grande, 1749-016 Lisboa, Portugal
- Centro de Quı́mica Estrutural,
Instituto
Superior Técnico, Universidade Técnica de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
| | - Maria José Calhorda
- Universidade de Lisboa, Faculdade de Ciências, Departamento de Quı́mica e Bioquı́mica, Campo Grande, 1749-016 Lisboa, Portugal
- Universidade de Lisboa,
Faculdade de Ciências, Centro
de Química e Bioquı́mica,
Campo Grande, 1749-016 Lisboa, Portugal
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13
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Cordes DB, Lickiss PD. Preparation and Characterization of Polyhedral Oligosilsesquioxanes. ADVANCES IN SILICON SCIENCE 2011. [DOI: 10.1007/978-90-481-3787-9_2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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14
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Polyhedral Oligomeric Silsesquioxanes: From Early and Strategic Development through to Materials Application. ACTA ACUST UNITED AC 2010. [DOI: 10.1007/978-90-481-3787-9_1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
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15
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Trastoy B, Pérez-Ojeda ME, Sastre R, Chiara JL. Octakis(3-azidopropyl)octasilsesquioxane: a versatile nanobuilding block for the efficient preparation of highly functionalized cube-octameric polyhedral oligosilsesquioxane frameworks through click assembly. Chemistry 2010; 16:3833-41. [PMID: 20162645 DOI: 10.1002/chem.200902422] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A one-step synthesis of octakis(3-azidopropyl)octasilsesquioxane from commercially available octakis(3-aminopropyl)octasilsesquioxane has been developed through a highly efficient diazo-transfer reaction under very mild conditions. Nonaflyl azide is shown to be a safer, cheaper, and more efficient reagent for this transformation than the better known and generally used diazo-transfer reagent triflyl azide. Octakis(3-azidopropyl)octasilsesquioxane is an excellent nanobuilding block that can be readily octafunctionalized with a range of terminal alkynes by copper(I)-catalyzed 1,3-dipolar azide-alkyne cycloaddition to provide new functional nanocages, maintaining a perfect 3D cubic symmetry. The mildness, simplicity, and efficiency of this approach have been demonstrated in the preparation of a glyco-polyhedral oligosilsesquioxane (POSS) conjugate and a BODIPY-POSS cluster (BODIPY = boron dipyrromethene).
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Affiliation(s)
- Beatriz Trastoy
- Instituto de Química Orgánica General, CSIC, Juan de La Cierva, 3, 28006 Madrid, Spain
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16
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Synthesis and structure of ladder polymethylsilsesquioxanes from sila-functionalized cyclotetrasiloxanes. J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2010.02.008] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Shimojima A, Goto R, Atsumi N, Kuroda K. Self-Assembly of Alkyl-Substituted Cubic Siloxane Cages into Ordered Hybrid Materials. Chemistry 2008; 14:8500-6. [DOI: 10.1002/chem.200801106] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Fully Condensed Polyhedral Oligosilsesquioxanes (POSS): From Synthesis to Application. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2008. [DOI: 10.1016/s0065-3055(08)00001-4] [Citation(s) in RCA: 192] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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19
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Goto R, Shimojima A, Kuge H, Kuroda K. A hybrid mesoporous material with uniform distribution of carboxy groups assembled from a cubic siloxane-based precursor. Chem Commun (Camb) 2008:6152-4. [DOI: 10.1039/b813679c] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Kawahara K, Hagiwara Y, Shimojima A, Kuroda K. Stepwise silylation of double-four-ring (D4R) silicate into a novel spherical siloxane with a defined architecture. ACTA ACUST UNITED AC 2008. [DOI: 10.1039/b807533f] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Feher FJ, Schwab JJ, M.Tellers D, Burstein A. A General Strategy for Synthesizing Cubeoctameric Silsesquioxanes Containing Polymerizable Functional Groups. MAIN GROUP CHEMISTRY 2006. [DOI: 10.1080/10241229812331341329] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Pielichowski K, Njuguna J, Janowski B, Pielichowski J. Polyhedral Oligomeric Silsesquioxanes (POSS)-Containing Nanohybrid Polymers. SUPRAMOLECULAR POLYMERS POLYMERIC BETAINS OLIGOMERS 2006. [DOI: 10.1007/12_077] [Citation(s) in RCA: 293] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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23
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24
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Majoral JP, Caminade AM. Dendrimers containing heteroatoms (si, p, B, ge, or bi). Chem Rev 1999; 99:845-80. [PMID: 11749433 DOI: 10.1021/cr970414j] [Citation(s) in RCA: 488] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J P Majoral
- Laboratoire de Chimie de Coordination du CNRS, 205, route de Narbonne, 31077 Toulouse Cedex 4, France
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25
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Reactions of thiol-functionalized silsesquioxanes with metal carbonyl clusters: syntheses and characterization of [Si8O12(Prn)7{(μ2-SC3H6)M3(μ-H)(CO)10}] (M=Ru, Os; Prn=C3H7), [Si8O12(Prn)6{(μ2-SC3H6)Ru3(μ-H)(CO)10}2] and [Si8O12(C3H6SH)x{(μ2-SC3H6)Ru3(μ-H)(CO)10}8−x] (x=6, 0). J Organomet Chem 1998. [DOI: 10.1016/s0022-328x(97)00244-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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26
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Hong B, Thoms TPS, Murfee HJ, Lebrun MJ. Highly Branched Dendritic Macromolecules with Core Polyhedral Silsesquioxane Functionalities. Inorg Chem 1997. [DOI: 10.1021/ic971034j] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bo Hong
- Department of Chemistry, University of California, Irvine, California 92697-2025
| | - Travis P. S. Thoms
- Department of Chemistry, University of California, Irvine, California 92697-2025
| | - Hunter J. Murfee
- Department of Chemistry, University of California, Irvine, California 92697-2025
| | - Michael J. Lebrun
- Department of Chemistry, University of California, Irvine, California 92697-2025
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