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Poly[(μ 5 ‐3‐carboxybenzene‐1,2‐dicarboxylato)lead(II)]: a helical lead(II) coordination polymer
Author(s) -
Cheng ShaoMin,
Wang XianFei,
Yang Fang,
Chen Hang,
Liu WenLong
Publication year - 2014
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229614013667
Subject(s) - pentagonal bipyramidal molecular geometry , supramolecular chemistry , crystallography , carboxylate , deprotonation , monomer , chemistry , thermogravimetric analysis , polymer , stereochemistry , materials science , crystal structure , ion , organic chemistry
In the title polymer, [Pb(C 9 H 4 O 6 )] n , the asymmetric unit contains a monomer of a Pb II cation with a doubly deprotonated 3‐carboxybenzene‐1,2‐dicarboxylate dianion (1,2,3‐Hbtc 2− ). Each Pb II centre is seven‐coordinated by seven O atoms of bridging carboxy/carboxylate groups from five 1,2,3‐Hbtc 2− ligands, forming a distorted pentagonal bipyramid. The Pb II cations are bridged by 1,2,3‐Hbtc 2− anions, yielding two‐dimensional chiral layers. The layers are stacked above each other to generate a three‐dimensional supramolecular architecture via a combination of C—H...O interactions. The thermogravimetric and optical properties are also reported.