Abstract
AbstractA series of transition metal coordination complexes, {[Cu(3‐Sptta)2]·1/2H2O}n (1), {[Cd(3‐Sptta)2]·1/2H2O}n (2), [Zn(3‐Sptta)2(H2O)4] (3), and [Co(3‐Sptta)2(H2O)4] (4) were synthesized under solvothermal and solvent evaporation conditions using the newly designed heterocyclic N/NS carboxylate ligand [2‐(3‐pyridyl)‐1,3,4‐thiadiazole‐5‐]‐thio‐acetate (3‐Sptta) as a main building block. Their structures were determined by single‐crystal X‐ray diffraction analyses and further characterized by elemental analyses and IR spectroscopy. The four complexes exhibit structural diversity: complexes 1 and 2 exhibit similar 2D “wave‐like” double‐layer framework with two shares of mutually parallel left‐handed and right‐handed helical chains, whereas 3 and 4 present mononuclear structures. Moreover, the thermal stabilities of complexes 1–4 were investigated. The luminescent properties of complexes 2, 3 and the free ligand were also studied.
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