Beryllium chloride

Beryllium chloride is the chemical compound with the formula BeCl2. It is 1-dimensional polymer consisting of edge-shared tetrahedra. In contrast BeF2 is a 3-dimensional polymer, with a structure akin to quartz.

BeCl2 can be prepared by treating Be metal with hydrogen chloride:
 * Be +  2 HCl  &rarr;  BeCl2  +  H2

It hydrolyses upon contact with water to give the aquo complex, [Be(H2O)4]Cl2.