[Methylhydrazinium]<sub>2</sub>PbCl<sub>4</sub>, a Two-Dimensional Perovskite with Polar and Modulated Phases
Katarzyna Fedoruk, Dawid Drozdowski, Mirosław Mączka, Jan K. Zaręba, Dagmara Stefańska, Anna Gągor, Adam Sieradzki
Abstract
also exhibits thermochromism, with the photoluminescence (PL) color changing from purplish-blue at 80 K to bluish-green at 230 K. The demonstration of polar characteristics for one more member of the methylhydrazinium perovskites settles a debate about whether this approach can present value for the crystal engineering of acentric solids similar to that which was recently adopted by a so-called fluorine substitution effect.
Topics & Concepts
ChemistryPerovskite (structure)Orthorhombic crystal systemIsostructuralCrystallographyMonoclinic crystal systemPhase transitionPhase (matter)Crystal structureSpace groupFerroelectricityDielectricCondensed matter physicsX-ray crystallographyMaterials scienceOpticsPhysicsDiffractionOptoelectronicsOrganic chemistryPerovskite Materials and ApplicationsSolid-state spectroscopy and crystallographyCrystal Structures and Properties