卤化物
碘化物
钙钛矿(结构)
金属
化学
单独一对
晶体结构
无机化学
碘化铵
结晶学
材料科学
分子
有机化学
作者
Zhongjia Tang,Jun Guan,Arnold M. Guloy
摘要
The reaction of 2,2′-biimidazole with metal diiodides, PbI2 and SnI2, in hydriodic acid affords new organic-based layered perovskites, (C6H8N4)PbI4 and (C6H8N4)SnI4, in which non-primary ammonium organic cations were incorporated with the inorganic layered perovskites. Single crystal X-ray investigations show the aromatic heterocyclic biimidazolium cations form organic layers sandwiched between the metal iodide sheets. The metal iodide perovskite layers exhibit unusual structural features associated with one-dimensional metal halide structures. These structural features are rationalized in terms of stereoactive lone pairs that arise from the weakening of secondary bonds.
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