Upon heating the average zinc coordination number drops to 3.6 as long range order is lost and the amorphous structure forms (Figure ). Since many of the oxalate linkers have become CO 2 , the quenched structure is unable to reform the initial five coordinate species and creates a new four coordinate zinc framework. The quenched structure has a tetragonal zinc environment with four triazolate linkers as well as mixed coordination between the oxalate and triazolate linkers in a 1:3 and 2:2 ratio.