A novel photochromic hybrid containing trinuclear [Cd3Cl12]6− clusters and protonated tripyridyl-triazines

Abstract

Incorporation of electron-deficient N-protonated 2,4,6-tri(4-pyridyl)-1,3,5-triazine (H₃TPT) into electron-rich chlorocadmate leads to a novel organic–inorganic hybrid [H₃TPT]₂[Cd₃Cl₁₂] (1), which features as a trinuclear anionic cluster [Cd₃Cl₁₂]⁶⁻ with one CdCl₆ octahedron and two CdCl₄ tetrahedra via edge-sharing mode and exhibits excellent photochromic performance with fast photoresponsive rate, obvious coloration contrast and high thermal stability.