1D sodium ditetrazole coordination polymer obtained through in situ hydrothermal ligand synthesis

Hydrothermal treatment of ZnCl2, 1,4-dicyanoethylene, NaN3, and water in the presence of NaOH at ca. 130 °C unexpectedly but welcomingly offers colorless crystals of the compound 1. To the best of our knowledge, 1 is the first ditetrazole coordination polymer containing sodium synthesized through in situ hydrothermal 2 + 3 cycloaddition reaction between cyano and azide groups.