Lead-free organic–inorganic hybrid materials have attracted wide interest due to their excellent optoelectronic and photovoltaic properties. Herein, we synthesized a Bi-based hybrid material with one-dimensional (1D) Bi-I anionic chains, namely, (C₅H₉N₂)[BiI₄] (1) by solvothermal method. Single-crystal X-ray diffraction analysis reveals that it crystallizes in monoclinic space group of C2/c with the cell parameters a = 15.539(13) Å, b = 13.860(12) Å, c = 7.789(6) Å, β = 117.02(2)^o, V = 1494(2) ų, and Z = 4, which is composed of protonated 1,3-dimethylimidazolium cations and one-dimensional (1D) [BiI₄]_∞⁻ chains interconnected via edge-sharing μ₂-I. This compound exhibits fast degradation of rhodamine B (RhB) at room temperature under dark condition.

无铅有机-无机杂化材料因其出色的光电和光伏特性而引起了广泛的关注。在这里，我们通过溶剂热法合成了具有一维（1D）Bi-I阴离子链的Bi基杂化材料，即（C ₅ H ₉ N ₂）[BiI ₄ ]（1）。单晶X射线衍射分析表明，它在C2 / c的单斜晶空间群中结晶，晶格参数为a  = 15.539（13）Å，b  = 13.860（12）Å，c  = 7.789（6）Å，β  = 117.02（2）^Ô，V  = 1494（2）埃³，与ž  = 4，它是由质子化的1,3-二甲基咪唑的阳离子和一维（1D）[BII的₄ ] _∞ ^-通过了共享边缘的互连μ链₂ -I。该化合物在黑暗条件下在室温下显示出罗丹明B（RhB）的快速降解。