The influence of stoichiometry on the structure and fluorescence of two organic–inorganic hybrid complexes incorporating of 2-(2-aminoethyl)-1-methylpyrrolidine and lead iodide

Add time:07/14/2019    Source:sciencedirect.com

Two inorganic–organic hybrid compounds [(C7H18N2)6Pb7I26] (1) and [(C7H18N2)Pb2I6] (2) have been synthesized by reactions of 2-(2-aminoethyl)-1-methylpyrrolidine and lead iodide with 1: 1 and 1: 2 M ratios in concentrated HI aqueous. The single-crystal X-ray diffraction revealed that the inorganic component in compound 1 can be viewed as a wave-like 2D sheet built up from alternatively perovskite and non-perovskite structure types connected with corner-, edge- sharing octahedral [PbI6]; and that in complex 2 is a zigzag chain constructed with edge- sharing octahedral [PbI6]. In addition, both complexes showed fluorescent properties with complex 1 emitted green light at 545 nm and complex 2 emitted blue light at 467 nm.

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