(Methoxyphenacyl)Tellurium(IV) Halides: Synthesis and Characterization

摘要

The preparation and properties of some organotellurium(IV) halides, RnTeX4-n, (where R = H3COC6COCH2-, X = Cl, Br, I and n = 1, 2), are reported. Cryoscopic measurements, in general, are consistent with the conductivity measurements and reflect the molecular nature of RTeCl3and R2TeX2, and the 1:1 electrolytic nature of RTeBr3and RTeI3in solution. The1H n.m.r. spectra suggest the linkage of tellurium to the -CH2-group of the phenacyl moiety. The far i.r. spectra reflect the polymeric nature of RTeX3and the monomeric nature for the R2TeX2type compounds.