Three new isostructural mixed anionic tellurites, namely, Pb₂Al₃F₃(Te₆F₂O₁₆) (1), Pb₂Ga₃F₃(Te₆F₂O₁₆) (2) and Ba₂Ga₃F₃(Te₆F₂O₁₆) (3), have been synthesized successfully by hydrothermal reactions. Their structures feature a novel 3D framework composed of 1D GaO₄F₂/AlO₄F₂ octahedral chains joined together with isolated (Te₆F₂O₁₆)¹⁰⁻ anionic rings. The charge-balance cations of Pb²⁺ or Ba²⁺ are located at the six-member polyhedral ring tunnels of the structures. The 0D (Te₆F₂O₁₆)¹⁰⁻ anionic ring is first reported in fluorotellurites, formed by two TeO₄ and four TeO₃F groups via corner-sharing. Thermogravimetric analyses revealed that their thermostabilities are in the following order: Pb₂Al₃F₃(Te₆F₂O₁₆) (1), Ba₂Ga₃F₃(Te₆F₂O₁₆) (3) and Pb₂Ga₃F₃(Te₆F₂O₁₆) (2). Optical diffuse reflectance spectra showed that these solids are wide band gap semiconductors with Eg of 4.1, 4.2 and 4.4 eV for compounds 1–3 respectively. The band gaps of compounds 1 and 2 are determined by O, Te and Pb atoms while the band gap of compound 3 is determined by O and Te atoms based on the theoretical calculations.

三种新的等结构混合阴离子碲酸盐，分别为Pb ₂ Al ₃ F ₃（Te ₆ F ₂ O ₁₆）（1），Pb ₂ Ga ₃ F ₃（Te ₆ F ₂ O ₁₆）（2）和Ba ₂ Ga ₃ F通过水热反应成功地合成了₃（Te ₆ F ₂ O ₁₆）（3）。它们的结构具有由1D GaO ₄ F ₂ / AlO ₄ F ₂组成的新型3D框架八面体链与孤立的（Te ₆ F ₂ O ₁₆）^10-阴离子环连接在一起。Pb ²⁺或Ba ²⁺的电荷平衡阳离子位于结构的六元多面体环形隧道中。0D（Te ₆ F ₂ O ₁₆）^10-阴离子环最早是在萤石中报道的，它由两个TeO ₄和四个TeO ₃ F基团通过边角共享形成。热重分析显示其热稳定性按以下顺序：Pb ₂ Al ₃ F ₃（Te ₆F ₂ O ₁₆）（1），Ba ₂ Ga ₃ F ₃（Te ₆ F ₂ O ₁₆）（3）和Pb ₂ Ga ₃ F ₃（Te ₆ F ₂ O ₁₆）（2）。光学漫反射光谱表明，这些固体是宽带隙半导体，化合物1-3的Eg分别为4.1、4.2和4.4 eV 。化合物1和2的带隙由O，Te和Pb原子确定，而化合物3的带隙 由O和Te原子根据理论计算确定。