%0 Journal Article %A Annaka, Tatsuro %A Nakata, Norio %A Ishii, Akihiko %D 2015 %T Synthesis, Structures, and Temperature-Dependent Photoluminescence of 1,4-Diphenyl-1-telluro-1,3-butadiene Incorporated in a Dibenzobarrelene Skeleton and Derivatives %U https://acs.figshare.com/articles/journal_contribution/Synthesis_Structures_and_Temperature_Dependent_Photoluminescence_of_1_4_Diphenyl_1_telluro_1_3_butadiene_Incorporated_in_a_Dibenzobarrelene_Skeleton_and_Derivatives/2177917 %R 10.1021/acs.organomet.5b00016.s002 %2 https://acs.figshare.com/ndownloader/files/3811840 %K dibenzobarrelene skeleton %K PL %K selenium congeners %K Dibenzobarrelene Skeleton %K 77 K %K telluride %K room temperature %X 1,4-Diphenyl-1-telluro-1,3-butadiene incorporated in a dibenzobarrelene skeleton was synthesized with a good yield by an intramolecular Diels–Alder reaction of the corresponding 1-(9-anthyltelluro)­enyne. Oxidation and bromination of the telluride yielded telluroxide and hypervalent Te,Te-dibromide, respectively. Their structures were determined by X-ray crystallography. Unlike its highly fluorescent sulfur and selenium congeners, the telluride is barely fluorescent in solution at room temperature due to the heavy-atom effect of tellurium. The telluride displayed temperature-dependent fluorescence; it is fluorescent with a moderate quantum yield (ΦPL = 0.42) in the glass of 2-methyltetrahydrofuran at 77 K. %I ACS Publications