United States Marine Forces Central Command. (Redirected from MARCENT) The Commander, U.S. Marine Corps Forces, Central Command (COMUSMARCENT), is designated as the Marine Corps service component commander for Commander, U.S. Central Command (COMUSCENTCOM).
As a consequence of its structure where there are no significant lattice forces, gallium trichloride has the lowest melting point of all of the aluminium, gallium and indium trihalides. The formula of Ga 2 Cl 6 is often written as Ga 2 (Î¼-Cl) 2 Cl 4.
The general equation for the reaction is: In each case, the net effect is that you replace the-Cl by-Nu, and hydrogen chloride is formed as well. Since the initial attack is by a nucleophile, and the overall result is substitution, it would seem reasonable to describe the reaction as nucleophilic substitution.