Tellurophenes

Optimizing the Performance of Conjugated Polymers in Organic Photovoltaic Cells by Traversing Group 16

“…Furan and several derivatives can also be prepared from biomass, making them green building blocks . The use of selenophene, tellurophene, and their derivatives in CPs has risen over the past two decades, primarily due to an increased number of methods for their preparation . All of these chalcogenophenes are π-excessive heterocycles and will undergo electrophilic substitution reactions faster than benzene.…”

“…However, ring-opening side reactions can occur in furans in the presence of aqueous Brønsted acids and during certain oxidations . Thiophenes can also experience oxidation of sulfur to form S,S-dioxides and desulfurization reactions, while tellurophenes can be halogenated to form dihalotellerides. ,, …”

Versatile telluracycle synthesis via the sequential electrophilic telluration of C(sp2)–Zn and C(sp2)–H bonds

“… 1 , 2 Studies of tellurophene-containing small molecules focused on their redox and photochemical reactivity, 3 photoluminescence properties, 4 and anion recognition ability through chalcogen bonds 5 have also emerged ( Chart 1 ). In these studies, the synthesis and functionalization of substituted tellurophenes have been achieved using a variety of methods, such as the cyclization of 1,3-diyne with sodium telluride 6 and zirconacyclopentadiene transfer to TeCl 2 ·bpy. 2c , 7 …”

First example of a high-level correlated calculation of the indirect spin–spin coupling constants involving tellurium: tellurophene and divinyl telluride

“…Apart from being of purely theoretical interest, tellurophene and divinyl telluride are important starting materials for organic synthesis and the preparation of new organotellurium compounds. [9][10][11][12][13][14][15] As an example of the first type (i.e., dealing with organic synthesis), diaryl tellurophenes are involved in the tellurium-lithium exchange reaction giving 1,4-dilithio-1,3butadienes, which can be further applied for the preparation of siloles. 15 As an example of the second type (i.e., preparing organotellurium compounds), a number of important substituted divinyl tellurides, prospective monomers in polymer synthesis, were obtained recently from tellurium tetrahalides and acetylene.…”