Ar2GaX
Ar2GaX is a neutral molecular cluster comprising a gallium halide fragment GaX coordinated by two argon atoms. In this designation X stands for a halogen or pseudo-halide ligand such as F, Cl, Br, I, CN, or OR in theoretical models; the exact identity of X influences bond lengths and binding energies. The two argon atoms interact with the GaX core through weak, dispersion-driven contacts, giving an overall Ar2GaX geometry that is typically arranged with the GaX fragment at the center and the Ar atoms occupying apical positions.
Synthesis and occurrence of Ar2GaX are primarily discussed in gas-phase or matrix-isolation contexts. They are not
Computational studies on Ar2GaX use quantum chemical methods (DFT or ab initio) to predict weak Ar–Ga interactions
Stability and significance: Ar2GaX is regarded as a transient, low-temperature species useful for understanding rare-gas interactions