CaXn
CaXn is a notional designation used in inorganic and computational chemistry to describe a class of calcium-ligand complexes consisting of a single Ca2+ center bound to n ligands X. In this notation, X represents a monodentate ligand of unspecified identity, which can be a halide, pseudohalide, or other neutral or anionic ligand, and n indicates the coordination number. The concept serves as a flexible framework for exploring how ligand identity and coordination number influence calcium bonding and geometry in theoretical models.
In real chemistry, calcium commonly forms CaX2 with halides and often adopts higher coordination numbers in
Synthesis and occurrence of discrete CaXn species are not established as routine laboratory products in the
Applications of the CaXn concept are primarily as a tool for understanding calcium coordination chemistry and