Tellurium-125 chemical shifts of symmetric and unsymmetric dialkyl ditellurides

Syntheses and Structures of Zinc(tmeda)bis(aryltellurolato) and its Facile Chalcogenospecific Ligand Exchange Reactivity

“…Previous results have shown that the alkyltelluride moieties of symmetric dialkylditellurides undergo a facile exchange reaction in solution to give a mixture of symmetric and unsymmetric dialkylditellurides , . The same is observed with the diarylditellurides used in this study as illustrated, for example, by the reaction of diphenylditelluride with bis(4‐methylphenyl)ditelluride, which affords a mixture [Figure (1)].…”

The reactions of tellurium tetrachloride with aliphatic monoketones

“…Methyl substitution at the tellurium-bearing carbon (COCH2Te to COCH [CHJTe) causes the tellurium resonance to move downfield by approximately +111 ppm. This change is similar in direction but smaller in magni- tude when compared to the changes of + 189 and +215 ppm for a-methyl substitution in dialkyl tellurides [ 6 ] and dialkyl ditellurides [5]. [S] and dialkyl tellurides [6].…”

Molecular Precursors for the Phase‐Change Material Germanium‐Antimony‐Telluride, Ge2Sb2Te5 (GST)

“…As outlined in Section 3, previously employed tellurium precursors comprise only two classes of organotellurium(II) compounds, namely dialkyltellurides, Te R 2 ( R = Me, i Pr, n Bu, t Bu), and the bis(trialkylsilyl)tellurides, Te(SiMe 3 ) 2 , Te(SiEt 3 ) 2 , and Te(Si t BuMe 2 ) 2 . Rather surprising is the fact that the widely known and easily accessible dialkylditellurides, Te 2 R 2 ( R = Me, Et, n Pr, i Pr, n Bu, i Bu t Bu, CH 2 t Bu, c‐C 3 H 5 , and many others) have not been used as precursors for GST thin films. This is the more surprising as dialkylditellurides are the oldest known organotellurium compounds.…”

“…of Te 2 n Bu 2 and Te 2 t Bu 2 is relatively innocuous. [77b] Di‐ n ‐butylditelluride, Te 2 n Bu 2 , is currently under investigation in our lab as a new Te precursor as it combines several advantages. It is readily available in ca.…”