Three <i>in situ</i>-synthesized novel inorganic–organic hybrid materials based on metal (M = Bi, Pb) iodide and organoamine using one-pot reactions: structures, band gaps and optoelectronic properties
作者:Zhi Shuo Yan、Ji Ying Long、Yun Gong、Jian Hua Lin
DOI:10.1039/c7nj02815f
日期:——
three-dimensional (3D) supramolecular architecture. While the in situ-formed (N-ethyl-pyridine)+ cations in compound 2 and (Hpyridine)+ cations in compound 3 are linked with infinite one-dimensional (1D) Pb-(μ2-I)3-Pb-(μ2-I)3-Pb chains via strong H bonds. Density functional theory (DFT) calculations demonstrate that the three compounds have different band structures. And among them, compound 1 possesses the
基于金属碘化物,三种新型的无机-有机杂化材料被配制成(N-乙基吡啶)2(N-乙基-1,3,4-三唑)(Bi 2 I 9)(1),[(N-乙基原位–溶剂热合成了-吡啶)(PbI 3)] n(2)和[(吡啶)(PbI 3)] n(3),并通过单晶X射线衍射对其进行了表征。在化合物1中,原位形成的(N-乙基吡啶)+和(N-乙基-1,3,4-三唑)+阳离子通过强H键与零维(0D)(Bi 2 I 9)3-簇连接,形成三维(3D)超分子结构。虽然原位-formed(ñ -乙基-吡啶)+中的阳离子化合物2和(Hpyridine)+中的阳离子化合物3与无限一维(1D)PB-(μ连接2 -I)3 -Pb-( μ 2 -I)3 -Pb链经由强H键。密度泛函理论(DFT)计算表明,这三种化合物具有不同的能带结构。其中,化合物1具有最窄的带隙,并且在可见光照射下(350 nm < λ <650 nm)产生最大的光