Abstract
AbstractFour indium‐based, 2D coordination polymers (CP) were synthesized utilizing InCl3 and InI3 and the bidentate ligands 4,4’‐bipyridine (bipy), 1,2‐di(4‐pyridyl)ethylene (bpe) and 1,2‐di(4‐pyridyl)ethane (bpa). The isoreticular networks [In2Cl6(bipy)] (1) and [In2Cl6(bpe)] (2) are constituted by chloride‐ and ligand‐bridged octahedra with a honeycomb like (6,3)‐net topology (hcb topology). In contrast, [(In4Cl12)(bpa)3] (3) consists of {In4Cl12N6} units, with each indium atom being coordinated by chloride anions and bpa ligands in an octahedral fashion. Bpa ligands connect indium atoms in two dimensions, forming a semi‐regular uninodal 3‐c net with the point symbol (4,82), as present in the fes topology. In [(InI3)2(bpa)3] (4), indium is coordinated by three iodide and three bpa ligands in a meridional fashion. In contrast to [In2Cl6(bipy)] (1) and [In2Cl6(bpe)] (2), the indium‐centered octahedra are linked by the bidentate linker only, but also a honeycomb‐like, zigzag‐shaped (6,3)‐net with a hcb topology is formed. The CPs were investigated by SCXRD, PXRD, IR‐spectroscopy, and with DTA/TG regarding their thermal properties.
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