c112Å

The notation "c112Å" refers to a specific chemical compound or molecular structure commonly encountered in crystallography and materials science, particularly in the context of perovskite-type oxides. The notation follows a shorthand system where "c" denotes the chemical element carbon, and the numerical subscript (112) indicates the stoichiometric ratio of other elements in the compound. The "Å" symbol represents an angstrom, a unit of length equal to 10⁻¹⁰ meters, often used to describe lattice parameters or distances in crystal structures.

In this case, "c112Å" is not a standalone compound but rather a way to describe a unit cell dimension in a crystal lattice. For example, it might represent a perovskite structure with a specific lattice parameter of 11.2 angstroms along the cubic axis. Perovskites are a class of compounds with the general formula ABX₃, where "A" and "B" are cations, and "X" is an anion, often oxygen. The notation helps researchers describe the spatial arrangement of atoms within the crystal.

The term is frequently used in discussions of layered or hybrid perovskites, where variations in lattice parameters influence the material's electronic, optical, or magnetic properties. Accurate determination of such parameters is critical for understanding and optimizing the performance of materials in applications like solar cells, catalysts, or superconductors.

While "c112Å" itself is not a widely recognized chemical formula, similar notations are standard in crystallographic literature to convey precise structural information. Researchers often derive these values through techniques such as X-ray diffraction (XRD) or neutron diffraction, which measure the spacing between atomic planes in a crystal.