Copper polytellurite-chlorides with A2 + cations (ACd, Pb) obtained by CVT reactions

• Single crystals of new copper polytellurite chlorides with Cd and Pb were prepared by chemical vapor transport reactions
• Both of compounds demonstrate novel structure types
• Pb5Cu2(Te4O11)]8+ one-dimensional units with Cl- anions in between are formed in 1
• 2 consists of neutral [CdCu2(Te3O8)Cl2]0 layers interconnected via weak A-Cl (A = metal) bonds only.

Two novel polytellurite-chlorides Pb5Cu2(Te4O11)Cl8 (1) and CdCu2(Te3O8)Cl2 (2) were obtained by a chemical vapor transport (CVT-reactions) reactions. The structure of 1 is based on [Pb5Cu2(Te4O11)]8 + one-dimensional blocks with full and partially occupied Cl sites around. The structure of 2 can be described as being formed by two types of one-dimensional units formed by Cd,Cu-centered polyhedra and TeO3, TeO4 pyramids sharing via common O atoms into electroneutral [CdCu2(Te3O8)Cl2]0 sheets. Obtaining of novel polytellurite-chlorides demonstrates effectiveness of CVT techniques for preparation of different tellurite-based complex layered materials.

Two novel polytellurite-chlorides were obtained by a chemical vapor transport (CVT reactions) reactions.Figure optionsDownload as PowerPoint slide