Chemical Conversion of Linkages in Covalent Organic Frameworks
Kavli Energy NanoScience Institute · Lawrence Berkeley National Laboratory · +2 more institutions
Abstract
The imine linkages of two layered, porous covalent organic frameworks (COFs), TPB-TP-COF ([C6H3(C6H4N)3]2[C6H4(CH)2]3, 1) and 4PE-1P-COF ([C2(C6H4N)4][C6H4(CH)2]2, 2), have been transformed into amide linkages to make the respective isostructural amide COFs 1′ and 2′ by direct oxidation with retention of crystallinity and permanent porosity. Remarkably, the oxidation of both imine COFs is complete, as assessed by FT-IR and 13C CP-MAS NMR spectroscopy and demonstrates (a) the first chemical conversion of a COF linkage and (b) how the usual “crystallization problem” encountered in COF chemistry can be bypassed to access COFs, such as these amides, that are typically thought to be difficult to obtain by the usual…
Citation impact
- FWCI
- 17.34
- Percentile
- 100%
- References
- 15
Authors
6- PJPeter J. WallerCorresponding
Kavli Energy NanoScience Institute, Lawrence Berkeley National Laboratory, University of California, Berkeley
- SJSteven J. Lyle
Lawrence Berkeley National Laboratory, University of California, Berkeley, Kavli Energy NanoScience Institute
- TMThomas M. Osborn Popp
University of California, Berkeley, Kavli Energy NanoScience Institute, Lawrence Berkeley National Laboratory
- CSChristian S. Diercks
Kavli Energy NanoScience Institute, University of California, Berkeley, Lawrence Berkeley National Laboratory
- JAJeffrey A. Reimer
University of California, Berkeley, Lawrence Berkeley National Laboratory
Topics & keywords
- Chemistry
- Covalent bond
- Covalent organic framework
- Organic chemistry
- Environmental chemistry