Shibuya Kengo, Koshimizu Masanori, Nishikido Fumihiko, Saito Haruo, Kishimoto Shunji
Acta Crystallogr Sect E Struct Rep Online. 2009 Oct 7;65(Pt 11):m1323-4. doi: 10.1107/S160053680903712X.
Crystals of the title compound, {(C(6)H(5)C(2)H(4)NH(3))(2)[PbBr(4)]}(n), were grown at room temperature from a solution in N,N-dimethyl-formamide (DMF) using nitro-methane as the poor solvent. This perovskite-type organic-inorganic hybrid compound consists of well ordered sheets of corner-sharing disordered PbBr(6) octa-hedra separated by bilayers of phenethyl-ammonium cations. The octa-hedra are rotated and tilted due to N-H⋯Br hydrogen bonds with the ammonium groups, generating a superstructure in the unit cell similar to that of the tetra-chloridoplumbate (C(6)H(5)C(2)H(4)NH(3))(2)[PbCl(4)].
标题化合物{(C₆H₅C₂H₄NH₃)₂[PbBr₄]}ₙ的晶体在室温下从N,N - 二甲基甲酰胺（DMF）溶液中生长，以硝基甲烷作为不良溶剂。这种钙钛矿型有机 - 无机杂化化合物由有序排列的由角共享的无序PbBr₆八面体组成的片层构成，这些片层被苯乙铵阳离子双层隔开。由于八面体与铵基团形成N - H⋯Br氢键，八面体发生旋转和倾斜，在晶胞中产生了类似于四氯铅酸（C₆H₅C₂H₄NH₃)₂[PbCl₄]的超结构。
