Synthesis, Crystal Structure, and Spectrothermal Characterization of a Novel Dimeric Cadmium(II) Azobispyridine Complex, [(μ–abpy){CdCl2(abpy)}2]·0.86H2O

Abstract

AbstractThe novel complex μ–2,2′–azobispyridine–bis[2,2′‐azobispyridinedichlorocadmium(II)]·0.86 hydrate (1) was synthesized and characterized by elemental analysis, IR and UV–Vis spectroscopy, thermal analysis and X–ray diffraction techniques. The crystal structure analysis indicates that the Cd2+ ions have a distorted octahedral coordination with CdII–CdII distance of 5.929(7) Å. One of the azobispyridine (abpy) ligands acts as a 's–frame' bridging ligand which adopts an s–cis/E/s–cis conformation, while the others adopt an s‐cis/E/s‐trans conformation, coordinated to Cd2+ ions in a trans position. π–π and π–ring interactions are responsible for crystal packing. The decomposition reaction takes place in the temperature range of 20–1000 °C in the static air atmosphere. Thermal decomposition of the title complex proceeds in five stages.