Reversible solid-state thermochromism of a 2D organic–inorganic hybrid perovskite structure based on iodoplumbate and 2-aminomethyl-pyridine?

New Journal of Chemistry Pub Date: 2017-07-26 DOI: 10.1039/C7NJ02229H

Abstract

An organic–inorganic hybrid molecule [(PyCH2NH3)6][Pb5I22]·3H2O (1) with a 2D inorganic layer was produced by reaction of 2-aminomethyl-pyridine with PbI2 in a concentrated HI aqueous solution. Compound 1 exhibited solid thermochromism showing a reversible color change from orange at room temperature to red at 80 °C, which was caused by the structural changes.

Graphical abstract: Reversible solid-state thermochromism of a 2D organic–inorganic hybrid perovskite structure based on iodoplumbate and 2-aminomethyl-pyridine
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