Thiophene, Selenophene, and Tellurophene‐based Three‐Dimensional Organic Frameworks

Abstract

3D frameworks are important because of their potential to combine the advantageous properties of porous materials with those associated with polymers.Aseries of novel 3D aromatic frameworks are presented that incorporate the heterocycles thiophene,s elenophene,a nd tellurophene.T he specific surface area and pore width of frameworks depends on the element that is used to build the framework. Optoelectronic properties are element-dependent, with heavy atoms redshifting the optical properties and decreasing the energy gap of the solid. The metalloid nature of tellurophene allows the properties of this material to be tuned based on its oxidation state,e ven as an insoluble solid. The incorporation of the optoelectronic active thiophene,selenophene,and tellurophene units and the effect that they have on properties was studied. A supercapcitor device was fabricated using these frameworks, showing that these 3D frameworks are promising for optoelectronic uses.