Post-synthetic modification of covalent organic frameworks
Covalent organic frameworks (COFs) are organic porous materials with many potential applications, which very often depend on the presence of chemical functionality at the organic building blocks. Functionality that cannot be introduced into COFs directly via de novo syntheses can be accessed through...
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| Published in | Chemical Society reviews Vol. 48; no. 14; pp. 393 - 3945 |
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| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
England
Royal Society of Chemistry
15.07.2019
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| Subjects | |
| Online Access | Get full text |
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| Summary: | Covalent organic frameworks (COFs) are organic porous materials with many potential applications, which very often depend on the presence of chemical functionality at the organic building blocks. Functionality that cannot be introduced into COFs directly
via de novo
syntheses can be accessed through post-synthetic modification (PSM) strategies. Current strategies for the post-synthetic modification of COFs involve (i) incorporation of a variety of active metal species by using metal complexation through coordination chemistry, (ii) covalent bond formation between existing pendant groups and incoming constituents and (iii) chemical conversion of linkages. (iv) The post-synthetic modification is sometimes assisted by a monomer truncation strategy for the internal functionalization of COFs. (v) Even more intriguing methods that go beyond PSM are herein termed building block exchange (BBE) which encompasses framework-to-framework transformations taking advantage of the fact that reversible bond formation is a characteristic feature of COFs. This strategy allows the use of protoCOF structures (
i.e.
, the utilization of a parent COF as a template) for the evolution of new COF structures with completely new components.
This review is aimed at providing an in-depth understanding of the potential of post-synthetic strategies for the modification of covalent organic frameworks. |
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| Bibliography: | José L. Segura obtained his PhD in Organic Chemistry at the UCM in Madrid working in Organic materials. After a stay in W. Dailey's group (Univ. Pennsylvania) he performed postdoctoral stays in the groups of M. Hanack (Univ. Tübingen), F. Wudl (UCSB, USA), and P. Bäuerle (Univ. Ulm). In 1995 Prof. Segura joined the faculty at the Complutense University in Madrid where he is currently Full Professor and is leading the Group of Macromolecular and Heterocyclic Organic Materials. Current research interests involve synthesis, electrochemical and photophysical characterization of molecular and macromolecular electroactive systems for optoelectronics as well as the post-synthetic functionalization of Covalent Organic Frameworks. Results have been published in more than 150 scientific contributions. Sergio Royuela received his BS degree in Chemistry (2013) and his MS degree in Chemical Science and Technology (2014) from the Complutense University of Madrid (UCM). Currently he is finishing his PhD under the supervision of Professors J. L. Segura (UCM) and M. M. Ramos (URJC). His research is focused on the synthesis of covalent organic frameworks (COFs) and their post-synthetic modification. M. Mar Ramos obtained her PhD in Organic Chemistry from the Complutense University of Madrid, Spain. In 1998, she obtained a tenured Assistant Professorship at Rey Juan Carlos University in Madrid, where she currently is leading the Organic Chemistry Area. She joined the Group of Macromolecular and Heterocyclic Organic Materials of the Organic Chemistry Department of the Complutense University of Madrid in 2004. Her current research interest is focused on design and characterization of organic materials for optoelectronics and COFs as new organics materials. ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-3 content type line 23 ObjectType-Review-1 |
| ISSN: | 0306-0012 1460-4744 |
| DOI: | 10.1039/c8cs00978c |