Publication detail

Towards Covalent Organic Frameworks Based on 2,2‘,2‘‘-(Benzene-1,3,5-triyl)triacetonitrile

Authors: Chrtková Marcela | Pařík Patrik | Havelková Kristýna | Bureš Filip

Year: 2021

Type of publication: ostatní - přednáška nebo poster

Page from-to: nestránkováno

Titles:

Language	Name	Abstract	Keywords
eng	Towards Covalent Organic Frameworks Based on 2,2‘,2‘‘-(Benzene-1,3,5-triyl)triacetonitrile	Since their discovery in 2005, covalent organic frameworks (COFs) represent a dynamically evolving class of organic porous materials based on the principles of reticular chemistry. The defined nanoscale channels and spaces inside their structure are ideal for molecular storage and separations, the large and defined interface for catalysis and sensing applications, and the interconnection of the building units and high structural regularity for (opto)electronic and energy storage devices. Especially the latest type of these materials, sp2c COFs with an olefinic linking motif, offers exceptional optoelectronic properties due to their extensive pi-electron delocalization. As building blocks for the synthesis of new sp2c COFs, 2,2',2'' (benzene 1,3,5 triyl)triacetonitrile and various (hetero)aromatic dicarbaldehydes were selected, forming olefinic bonds via Knoevenagel reaction. Pilot experiments varying base, solvent system, reaction temperature, and time were performed to verify possible synthetic pathways leading to crystalline products. Moreover, ten tripodal low molecular weight non polymeric analogs of the designed COFs were prepared; nine of them are new molecules. These so called model compounds were characterized and studied in terms of the structure property relationships.	Covalent Organic Frameworks; 2,2‘,2‘‘-Benzene-1,3,5-triyltriacetonitrile; Knoevenagel reaction

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