Multinuclear NMR as a tool for studying local order and dynamics in CH₃NH₃PbX₃(X = Cl, Br, I) hybrid perovskites

. Finally, quadrupolar NMR lineshapes recorded in the orthorhombic phase were compared with simulated spectra, using DFT calculated electric field gradients (EFG). Computed data do not take into account any temperature effect. Thus, the discrepancy between the calculated and experimental EFG evidences the fact that MA cations are still subject to significant dynamics, even at 25 K.

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