A one-dimensional copper (II) coordination polymer [Cu3(ampym)2(μ1,1-N3)4(μ1,3-N3)2(dmf)2]n (ampym = 2-aminopyrimidine) containing both end-on and end-to-end azido bridges

Reaction of 2-aminopyrimidine of Cu(NO3)2 with NaN3 results in a trinuclear-based 1D polymer chains with formula [Cu3(ampym)2(μ1,1-N3)4(μ1,3-N3)2(dmf)2]n, with two end-on azido bridges connecting the trinuclear units.