Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, Lavrentieva St. 3, 630090 Novosibirsk, Russia.
Int J Mol Sci. 2023 Apr 13;24(8):7234. doi: 10.3390/ijms24087234.
Nine heterometallic iodobismuthates with the general formula Cat{[BiMI}] (M = Cu(I), Ag(I), Cat = organic cation) were synthesized. According to X-ray diffraction data, their crystal structures consisted of {BiI} units interconnected with Cu(I) or Ag(I) atoms through I-bridging ligands, forming one-dimensional polymers. The compounds are thermally stable up to 200 °C. Optical band gaps (E), estimated at room temperature via diffuse reflectance measurements, range from 1.81 to 2.03 eV. Thermally induced changes in optical behavior (thermochromism) for compounds - were recorded, and general correlations were established. The thermal dependence of E appears to be close to linear for all studied compounds.
合成了 9 种具有通式 Cat{[BiMI}]（M = Cu(I)，Ag(I)，Cat = 有机阳离子）的杂金属碘代铋酸盐。根据 X 射线衍射数据，它们的晶体结构由 {BiI} 单元通过 I 桥连配体与 Cu(I)或 Ag(I)原子相互连接，形成一维聚合物。这些化合物在 200°C 以下热稳定。通过漫反射测量在室温下估算的光学带隙（E）范围为 1.81 至 2.03 eV。记录了化合物的热诱导光学行为变化（热致变色），并建立了一般相关性。所有研究化合物的 E 的热依赖性似乎接近线性。
