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Liu L, Mendoza-Espinosa D, Quiroz-Guzmán M, Rheingold AL, Hanna TA, Saha G, Tang L, Chen Y, Gilbert M, Dutta A, Asandei AD. Radical and Ring-Opening Polymerizations with Aryl-Substituted Methylene-Bridged Titanium Bisphenolates. Organometallics 2023. [DOI: 10.1021/acs.organomet.3c00053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Affiliation(s)
- Lihua Liu
- Department of Chemistry, Texas Christian University, Box 298860, Fort Worth, Texas 76129, United States
| | - Daniel Mendoza-Espinosa
- Department of Chemistry, Texas Christian University, Box 298860, Fort Worth, Texas 76129, United States
| | - Mauricio Quiroz-Guzmán
- Department of Chemistry, Texas Christian University, Box 298860, Fort Worth, Texas 76129, United States
| | - Arnold L. Rheingold
- Department of Chemistry, UC San Diego, 9500 Gilman Drive, La Jolla, California 92093-0021, United States
| | - Tracy A. Hanna
- Department of Chemistry, Texas Christian University, Box 298860, Fort Worth, Texas 76129, United States
| | - Gobinda Saha
- Institute of Materials Science, Polymer Program and Department of Chemistry, University of Connecticut, Storrs, Connecticut 06062-3136, United States
| | - Liming Tang
- Institute of Materials Science, Polymer Program and Department of Chemistry, University of Connecticut, Storrs, Connecticut 06062-3136, United States
| | - Yanhui Chen
- Institute of Materials Science, Polymer Program and Department of Chemistry, University of Connecticut, Storrs, Connecticut 06062-3136, United States
| | - Megan Gilbert
- Institute of Materials Science, Polymer Program and Department of Chemistry, University of Connecticut, Storrs, Connecticut 06062-3136, United States
| | - Abhirup Dutta
- Institute of Materials Science, Polymer Program and Department of Chemistry, University of Connecticut, Storrs, Connecticut 06062-3136, United States
| | - Alexandru D. Asandei
- Institute of Materials Science, Polymer Program and Department of Chemistry, University of Connecticut, Storrs, Connecticut 06062-3136, United States
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Haslinger C, Leutgeb LP, Haas M, Baudis S, Liska R. Synthesis and Photochemical Investigation of Novel Tetraacylgermanes. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Carola Haslinger
- Technische Universität Wien Fakultät für Technische Chemie: Technische Universitat Wien Fakultat fur Technische Chemie Department of Macromolecular Chemistry Getreidemarkt 9/BC03 E163 1060 Wien AUSTRIA
| | - Lukas Philipp Leutgeb
- Technische Universität Wien Fakultät für Technische Chemie: Technische Universitat Wien Fakultat fur Technische Chemie Department of Macromolecular Chemistry AUSTRIA
| | - Michael Haas
- Technische Universität Graz: Technische Universitat Graz Institute of Inorganic Chemistry AUSTRIA
| | - Stefan Baudis
- Technische Universität Wien Fakultät für Technische Chemie: Technische Universitat Wien Fakultat fur Technische Chemie Department of Macromolecular Chemistry AUSTRIA
| | - Robert Liska
- Technische Universität Wien Department of Macromolecular Chemistry Getreidemarkt 9/163-MC 1060 Vienna AUSTRIA
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Juliá F, Constantin T, Leonori D. Applications of Halogen-Atom Transfer (XAT) for the Generation of Carbon Radicals in Synthetic Photochemistry and Photocatalysis. Chem Rev 2021; 122:2292-2352. [PMID: 34882396 DOI: 10.1021/acs.chemrev.1c00558] [Citation(s) in RCA: 162] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The halogen-atom transfer (XAT) is one of the most important and applied processes for the generation of carbon radicals in synthetic chemistry. In this review, we summarize and highlight the most important aspects associated with XAT and the impact it has had on photochemistry and photocatalysis. The organization of the material starts with the analysis of the most important mechanistic aspects and then follows a subdivision based on the nature of the reagents used in the halogen abstraction. This review aims to provide a general overview of the fundamental concepts and main agents involved in XAT processes with the objective of offering a tool to understand and facilitate the development of new synthetic radical strategies.
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Affiliation(s)
- Fabio Juliá
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Timothée Constantin
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Daniele Leonori
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
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Eid N, Améduri B, Gimello O, Bonnet A, Devisme S. Vinylidene fluoride polymerization by metal-free selective activation of hydrogen peroxide: microstructure determination and mechanistic study. Polym Chem 2021. [DOI: 10.1039/d0py01625j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Hydrogen peroxide-initiated radical polymerization of vinylidene fluoride (VDF) at 130 °C in dimethyl carbonate is presented.
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Affiliation(s)
- Nadim Eid
- Institut Charles Gerhardt
- ICGM
- Univ. Montpellier
- CNRS
- ENSCM
| | - Bruno Améduri
- Institut Charles Gerhardt
- ICGM
- Univ. Montpellier
- CNRS
- ENSCM
| | | | - Anthony Bonnet
- Centre de Recherche Rhône-Alpes (CRRA)
- 69491 Pierre-Bénite Cedex
- France
| | - Samuel Devisme
- Centre de Recherche Rhône-Alpes (CRRA)
- 69491 Pierre-Bénite Cedex
- France
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Macromolecular engineering approach for the preparation of new architectures from fluorinated olefins and their applications. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2020.101255] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Affiliation(s)
- Hyun-Seok Yu
- Institute of Materials Science, Polymer Program and Department of Chemistry University of Connecticut, 97 North Eagleville Road, Storrs, Connecticut 06269-3136, United States
| | - Joon-Sung Kim
- Institute of Materials Science, Polymer Program and Department of Chemistry University of Connecticut, 97 North Eagleville Road, Storrs, Connecticut 06269-3136, United States
| | - Vignesh Vasu
- Institute of Materials Science, Polymer Program and Department of Chemistry University of Connecticut, 97 North Eagleville Road, Storrs, Connecticut 06269-3136, United States
| | - Christopher P. Simpson
- Institute of Materials Science, Polymer Program and Department of Chemistry University of Connecticut, 97 North Eagleville Road, Storrs, Connecticut 06269-3136, United States
| | - Alexandru D. Asandei
- Institute of Materials Science, Polymer Program and Department of Chemistry University of Connecticut, 97 North Eagleville Road, Storrs, Connecticut 06269-3136, United States
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Morales-Cerrada R, Ladmiral V, Gayet F, Fliedel C, Poli R, Améduri B. Fluoroalkyl Pentacarbonylmanganese(I) Complexes as Initiators for the Radical (co)Polymerization of Fluoromonomers. Polymers (Basel) 2020; 12:E384. [PMID: 32046342 PMCID: PMC7077403 DOI: 10.3390/polym12020384] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/16/2020] [Accepted: 02/04/2020] [Indexed: 11/25/2022] Open
Abstract
The use of [Mn(RF)(CO)5] (RF = CF3, CHF2, CH2CF3, COCF2CH3) to initiate the radical polymerization of vinylidene fluoride (F2C=CH2, VDF) and the radical alternating copolymerization of vinyl acetate (CH2=CHOOCCH3, VAc) with tert-butyl 2-(trifluoromethyl)acrylate (MAF-TBE) by generating primary RF• radicals is presented. Three different initiating methods with [Mn(CF3)(CO)5] (thermal at ca. 100 °C, visible light and UV irradiations) are described and compared. Fair (60%) to satisfactory (74%) polyvinylidene fluoride (PVDF) yields were obtained from the visible light and UV activations, respectively. Molar masses of PVDF reaching 53,000 g·mol-1 were produced from the visible light initiation after 4 h. However, the use of [Mn(CHF2)(CO)5] and [Mn(CH2CF3)(CO)5] as radical initiators produced PVDF in a very low yield (0 to 7%) by both thermal and photochemical initiations, while [Mn(COCF2CH3)(CO)5] led to the formation of PVDF in a moderate yield (7% to 23%). Nevertheless, complexes [Mn(CH2CF3)(CO)5] and [Mn(COCHF2)(CO)5] efficiently initiated the alternating VAc/MAF-TBE copolymerization. All synthesized polymers were characterized by 1H and 19F NMR spectroscopy, which proves the formation of the expected PVDF or poly(VAc-alt-MAF-TBE) and showing the chaining defects and the end-groups in the case of PVDF. The kinetics of VDF homopolymerization showed a linear ln[M]0/[M] versus time relationship, but a decrease of molar masses vs. VDF conversion was noted in all cases, which shows the absence of control. These PVDFs were rather thermally stable in air (up to 410 °C), especially for those having the highest molar masses. The melting points ranged from 164 to 175 °C while the degree of crystallinity varied from 44% to 53%.
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Affiliation(s)
- Roberto Morales-Cerrada
- Institut Charles Gerhardt Montpellier, University of Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095 Montpellier CEDEX 5, France; (R.M.-C.); (V.L.)
- Laboratoire de Chimie de Coordination (LCC), Université de Toulouse, CNRS, UPS, INPT, 205 route de Narbonne, BP 44099, 31077 Toulouse CEDEX 4, France; (F.G.); (C.F.)
| | - Vincent Ladmiral
- Institut Charles Gerhardt Montpellier, University of Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095 Montpellier CEDEX 5, France; (R.M.-C.); (V.L.)
| | - Florence Gayet
- Laboratoire de Chimie de Coordination (LCC), Université de Toulouse, CNRS, UPS, INPT, 205 route de Narbonne, BP 44099, 31077 Toulouse CEDEX 4, France; (F.G.); (C.F.)
| | - Christophe Fliedel
- Laboratoire de Chimie de Coordination (LCC), Université de Toulouse, CNRS, UPS, INPT, 205 route de Narbonne, BP 44099, 31077 Toulouse CEDEX 4, France; (F.G.); (C.F.)
| | - Rinaldo Poli
- Laboratoire de Chimie de Coordination (LCC), Université de Toulouse, CNRS, UPS, INPT, 205 route de Narbonne, BP 44099, 31077 Toulouse CEDEX 4, France; (F.G.); (C.F.)
| | - Bruno Améduri
- Institut Charles Gerhardt Montpellier, University of Montpellier, CNRS, ENSCM, Place Eugène Bataillon, 34095 Montpellier CEDEX 5, France; (R.M.-C.); (V.L.)
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