Design, Synthesis and Structural Characterization of a Novel Asymmetric Hydrazone-Thiosemicarbazone Ligand with the Aim of Obtaining Interesting Metallosupramolecular Architectures

Abstract

The asymmetric hydrazone-thiosemicarbazone ligand H2L was synthesized in two stages by means of a double-condensation reaction. The potentially dianionic and pentadentate [N3SO] organic ligand H2L possesses two flexible bidentate [NS/NO] domains separated by a pyridine spacer, which could stabilize a wide variety of metal ions, giving rise to different supramolecular architectures. This ligand was fully characterized by different techniques such as elemental analysis, infrared spectroscopy, mass spectrometry and 1H/13C NMR, confirming that it was obtained with high purity.

Keywords

• hydrazone
• thiosemicarbazone
• ligand
• metallosupramolecular architectures