Synthesis and structure of novel heterocyclic aminotelluranes

Iris Elyashiv, Zeev Goldschmidt, Ilana Ben-Arie, Pinchas Aped, Miriam Cojocaru, Hugo E. Gottlieb, Michael Albeck

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


A series of novel 6-alkoxy-12H,14H-[1,2,3]benzoxatellurazino[2,3-b]-[1,2,3]benzoxatellurazines 3 was synthesized from tetraalkoxytelluranes and bis(2-hydroxybenzyl)amines. 1H, 13C and 125Te NMR studies suggest that these aminotelluranes, unlike their orthoamidoester analogs, have a rigid trans-fused conformation. A preferential trans-fused conformation was also deduced from ab initio MO calculations of a model oxatellurazinooxatellurazine 7, using the STO-3G and SBK basis sets, and the Gaussian-92 program, which imply that the trans-fused aminotellurane is more stable than the corresponding cis isomer by 10.3 kcal/mol.

Original languageEnglish
Pages (from-to)4209-4215
Number of pages7
Issue number24
StatePublished - 15 Oct 1997


  • Ab initio calculations
  • Mannich bases
  • Oxatellurazines
  • TeNMR
  • Tetravalent tellurium
  • Tridentate ligands


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