One-dimensional mercury(II) coordination polymers with a flexible bidentate Schiff base ligand (Me2N-Ba)2Bn: Synthesis, characterization, and crystal structures

Exploring “Triazole-Thiourea” Based Ligands for the Self-Assembly of Photoluminescent Hg(II) Coordination Compounds

“…This type of 1D coordination chain of {-Hg−I−Hg−I−Hg-} ∝ is commonly found in Hg(II) CPs. 65,66 The ligand showed nearly identical conformation as in the free ligand L2 (syn-anti conformation, RMSD 0.37 Å between the free and complexed L2 ligand) and a similar R 2 S1). The asymmetric unit contains two crystallographically independent Hg(II) ions and four crystallographically independent ligand molecules.…”

“…Two positions of the iodine atoms around every Hg­(II) center are symmetry related, resulting in extended coordination polymerization, which leads to the formation of a 1D coordination polymer. This type of 1D coordination chain of {-Hg–I–Hg–I–Hg-} ∝ is commonly found in Hg­(II) CPs. , The ligand showed nearly identical conformation as in the free ligand L2 ( syn-anti conformation, RMSD 0.37 Å between the free and complexed L2 ligand) and a similar R 2 2 (8) ring homosynthon as in the free L2 ligand interactions [N–H···N = 2.977(6) Å, ∠N–H–N = 151.29°], resulting in the formation of 2D hydrogen bonded corrugated sheet-like architecture. The π···π stacking interactions involving the 1,2,4-triazole rings further strengthen this 2D corrugated sheet [centroid···centroid = 3.448 Å].…”