Preparation of tellurium-nitrogen containing moieties in ionic chainmolecules, heterocycles, as well as (CF3Se)(2)Te, (CF3S)(2)Se, and (CH3)(2)Te(X)Y (X=Y=NCO,NSO; X=Cl, Y=NSO)

The reaction between Cl2Te(NSO)(2), Cl6Te2N2S and Cl2Te(N=S=N)(2)TeCl2 with MCl3 provided the compounds [(Cl2Te)(2)N+] [MCl4-] (M = Ga, Al, Fe). Treating Cl6Te2N2S with M'Cl-3 yielded besides [(Cl2Te)2N+] [M'Cl-4] (M' = Al, Fe) the sulfur containing compound [ClTeNSNS+][M'Cl-4(-)]. The structure for [ClTeNSNS+][FeCl4-] was established by an X-ray structure analysis. With Te(NSO)(2) and CF3SCl, via Cl2Te(NSO)(2), the known compound Te2NCl5 was formed. Tetrafluoroditelluradiazetidine was obtained from TeF4 and [(CH3)(3)Si](2)NH which on treating with (CH3)(3)SiCl provided the corresponding chloro-derivative. In addition metathetical reaction between Cl2TeNSNS and CF3C(O)OAg yielded [CF3C(O)O](2) TeSNSN. Similarly (CH3)(2)Te(NSO)(2-x)Cl-x (x = 0,1) and (CH3)(2)Te(NCO)(2) were made from (CH3)(2)TeCl2 and AgNSO or A-NCO, respectively. Halogination of Cl2Te(N=S=N)(2-)TeCl2 with Cl-2 or Br-2 yielded Cl6Te2N2S and Cl4Br2Te2N2S. The bromoderivate was also prepared from Cl2Te(NSO)(2) and Br-2. AgNSO was synthesized by treating CF3C(O)OAg with (CH3)(3)SiNSO. Two other synthons (CF3Se)(2)Te and (CF3S)(2)Se were obtained from CF3SeCl and Na2Te and from Hg(SCF3)(2) plus SeCl4, respectively.