A chiral interdigitated supramolecular network assembled from single‐stranded helical tubes
The amino‐functionalized helical chiral one‐dimensional coordination polymer catena‐poly[[bis(pyridine‐κN)zinc(II)]‐μ‐2‐aminobenzene‐1,4‐dicarboxylato‐κ4 O 1,O 1′:O 4,O 4′], [Zn(C8H5NO4)(C5H5N)2] n , has an extended structure that is assembled from 2‐aminobenzene‐1,4‐dicarboxylate anions and Zn2+ cations and which presents a left‐handed 43 helix with a pitch of 25.6975 (9) Å. All the pyridine rings and all the amino groups point away from the helix to generate a hollow tube with a cross‐section of approximately 8 × 8 Å running parallel to the crystallographic c direction. Each single‐stranded helix is interdigitated with four neighbouring helices via N—H...O hydrogen bonds, which gives rise to a dense homochiral three‐dimensional supramolecular network.
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Document Type: Research Article
Publication date: July 15, 2011