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2,2',2''-(Benzene-1,3,5-triyl)triacetonitrile and 2,4,6-trimethyl-1,3,5-triazine as node building units for covalent organic frameworks
Rok: 2022
Druh publikace: ostatní - přednáška nebo poster
Strana od-do: nestránkováno
Tituly:
Jazyk Název Abstrakt Klíčová slova
eng 2,2',2''-(Benzene-1,3,5-triyl)triacetonitrile and 2,4,6-trimethyl-1,3,5-triazine as node building units for covalent organic frameworks In the last two decades, covalent organic frameworks (COFs) undeniably belong to the most studied materials in the field of material chemistry. Perspective of these macromolecules lies in their unique structure tunable towards specific properties. Thus, covalent organic frameworks possess a wide range of applications such as molecular storage and separation, sensing, heterogenous catalysis, electrochemical energy storage or (opto)electronics. Our general research interest is directed towards organic molecules, highly pi-conjugated systems in particular, with perspective optoelectronic properties. In this context, sp2 carbon-conjugated COFs combining extensive pi-electron delocalization due to olefinic connections with high chemical stability are attractive candidates to be investigated. Knoevenagel condensation has been utilized to form olefinic bonds between two monomers, namely 2,2',2''-(benzene-1,3,5-triyl)triacetonitrile or 2,4,6-trimethyl-1,3,5-triazine, and diverse aromatic carbaldehydes. Structural regularity has been achieved by a combination of optimized reaction conditions and solvothermal synthesis. Moreover, oligomers of the designed COFs were synthesized to verify the condensation of building blocks and to properly elucidate structure-property relationships. benzenetriacetonitrile; trimethyltriazine; covalent organic framework; carbaldehyde; Knoevenagel condensation