Correlating the Structural, Electronic, and Explosive Sensitivity Properties of CuII Tetrazine Complexes

Abstract

The synthesis and characterization of explosive coordination complexes of CuII with nitrogen‐rich tetrazine ligands and nitrate counter‐anions have been achieved. The complexes adopt a variety of coordination geometries including monomeric and dimeric architectures with five and six coordinate CuII centers. The thermal stabilities of the complexes correlate to the strength of the Cu–nitrate interaction such that more strongly bound nitrates exhibit higher thermal stability. Exchanging amine groups on the coordinating ligands with 3,3′‐dinitroazetidine groups led to changes in the solid‐state structures and increases to the impact sensitivity of the resulting complexes relative to the corresponding amine derivatives.