Abstract
Two new vanadium tellurites, Cu(TATP)V 2TeO 8 (1) and Cu(DPPZ)V 2Te 2O 10 (2), (TATP=1,4,8,9-tetranitrogen-trisphene, DPPZ=dipyridophenazine) have been synthesized under hydrothermal conditions and structurally characterized by elemental analyses, IR, and single-crystal X-ray diffraction. Compound 1 features an interesting two-dimensional layer structure constructed by [V 2TeO 8] n double-chain-like ribbons linked by [Cu(TATP)] 2+ bridges. Compound 2 consists of two types of chiral layers: one left-handed and the other right-handed, which lead to racemic solid-state compound. In each layer, there exist two types of inorganic helical chains (V 4Te 4O 8) n and (Te 2O 2) n , with same handedness. Two types of helical chains are linked by μ 3(O6) atoms to generate a V/Te/O inorganic anionic layer. The [Cu(DPPZ)] 2+ cationic complex fragments are covalently bonded to the layer, projecting below and above the vanadium tellurites layer.
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