Bidentate Triazolate-Based Ligand System: Synthesis, Coordination Modes, and Cooperative Bond Activation

The 1,2,3-triazole ring represents a highly attractive and useful platform for ligand synthesis. In this work, we reveal the design, preparation, and properties of a novel bidentate triazolate-based ligand and its potential in cooperative metal–ligand bond activation. Our triazolate system exhibits a multiphase mode of coordination to transition metals, supporting both dimeric and monomeric complexes. The complexes were carefully characterized both in solution and in the solid state. The metal–ligand cooperative potential of the basic triazolate pattern was demonstrated in HCl and H–H bond activation.