Synthesis and structure of new aryltellurenyl halides derived from (dmpTe)2 (dmp = 2,6-dimethoxyphenyl)

Trip2C6H3SeF: The First Isolated Selenenyl Fluoride

“…This result corresponds to the structure of BbtTeF 2 TeBbt:13 Sterically protected tellurenyl fluorides are stable in the dimerized molecular form RTeF 2 TeR. This structure type was first described for tellurenyl chlorides and bromides,11, 30a but in the meantime has also been found for iodides 30b…”

Small Inorganic Rings in the 21st Century: From Fleeting Intermediates to Novel Isolable Entities

“…In a nice illustration of how an inorganic element can dictate molecular structure, bis­(pentafluorophenyl)tellurium oxide, [(F 5 C 6 ) 2 Te­(μ-O)] 2 ( 948 ), is a centrosymmetric dimer with a planar Te 2 O 2 ring, while its selenium congener is a weakly associated hexamer, [(F 5 C 6 ) 2 SeO] 6 ( 949 ), with long Se---O and Se---Se bonds; both species were formed via the oxidation of the Se­(II) and Te­(II) precursors, Ch­(C 6 F 5 ) 2 (Ch = Se and Te), with m -chloroperbenzoic acid in chloroform . Structurally related tellurium oxide heterocycles characterized in the literature include a polymorph of 948 , [(2,4,6-Ph 3 C 6 H 2 )­Te­(μ-O)­X] 2 (X = Br and I; 950 and 951 ), the siloxy-capped tellurium­(VI) oxide [(Me 3 SiO) 4 Te­(μ-O)] 2 ( 952 ), [(2,6-(MeO) 2 C 6 H 3 )­Te­(μ-O)­OMe] 2 ( 953 ), salts of the dianion [F 3 Te­(μ-O)­TeF 3 ] 2– ( 954 ), and the ureatotellurium oxide [( t BuNC­(O)­N t Bu)­Te­(μ-O)] 2 ( 955 ) …”

Anion⋯anion interaction within Ch(CH3)X4−(Ch = S, Se, Te; X = Cl, Br, I) dimers stabilized by chalcogen bonds

“…Only the tellurium atom meets these criteria, and in each of them, the Te atom is involved in unusual TeÁ Á ÁX (X = F, Cl, Br, and I) interactions. Among these thirteen systems, two contain fluorine, 19,20 five chlorine, [21][22][23][24][25] two bromine, 23,26 and four iodine 23,27,28 atoms as ligands (Fig. S1, ESI †).…”