The term "fapbi3 cif file" is a database error. You are almost certainly looking for FAPbI$_3$ (Formamidinium Lead Iodide).
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By standardizing your search nomenclature, you will find the structural data required for your simulations or analysis without difficulty. fapbi3 cif file
Title: Structural Elucidation and Symmetry-Composition Relations in Formamidinium Lead Triiodide (FAPbI$_3$): A Deep Dive into the $Fm\bar3m$ to $Pm\bar3m$ Transition via Powder Diffraction Analysis
Abstract
Formamidinium lead triiodide (HC(NH$_2$)$_2$PbI$_3$ or FAPbI$_3$) represents the forefront of next-generation photovoltaic materials, offering a reduced bandgap closer to the Shockley-Queisser optimum compared to its methylammonium counterpart. However, the structural instability of the photoactive perovskite phase ($\alpha$-phase) remains a critical bottleneck. This paper provides a comprehensive crystallographic analysis of the FAPbI$_3$ Crystallographic Information File (CIF), focusing on the temperature-dependent phase transitions from the cubic $Fm\bar3m$ (or pseudo-cubic $Pm\bar3m$) structure to the non-perovskite hexagonal $P6_3mc$ phase. Through simulated Rietveld refinement and group-subgroup analysis, we deconvolute the orientational disorder of the formamidinium cation and its impact on the lattice parameters, offering a definitive guide for interpreting experimental diffraction data.
This is the highest symmetry cubic space group. It implies that the PbI₆ octahedra are perfectly aligned with no tilting. The CIF includes a loop_ of symmetry operations that generate the entire crystal from the asymmetric unit. The term "fapbi3 cif file" is a database error
If you have been searching for "fapbi3 cif file" without success, try the following refined strategies using open-access databases.
Only unique atoms are listed; symmetry generates the rest. By standardizing your search nomenclature, you will find