Open AccessA chiral interdigitated supramolecular network assembled from single‐stranded helical tubes
Author(s) -
Han Lei,
Xu LanPing,
Zhao WenNa
Publication year - 2011
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
eISSN - 1600-5759
pISSN - 0108-2701
DOI - 10.1107/s0108270111022566
Subject(s) - helix (gastropod) , pyridine , crystallography , supramolecular chemistry , hydrogen bond , benzene , chemistry , zinc , polymer , stereochemistry , molecule , crystal structure , organic chemistry , ecology , snail , biology
The amino‐functionalized helical chiral one‐dimensional coordination polymer catena ‐poly[[bis(pyridine‐κ N )zinc(II)]‐μ‐2‐aminobenzene‐1,4‐dicarboxylato‐κ 4 O 1 , O 1′ : O 4 , O 4′ ], [Zn(C 8 H 5 NO 4 )(C 5 H 5 N) 2 ] n , has an extended structure that is assembled from 2‐aminobenzene‐1,4‐dicarboxylate anions and Zn 2+ cations and which presents a left‐handed 4 3 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.