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Novel Copper(II) Thiodibenzoic Acid Coordination Polymers by in situ Extrusion of Sulfur from 2,2′‐Dithiodibenzoic Acid and the Unique Oxidation of Disulfide to Sulfate
Author(s) -
Moosun Salma B.,
Blair Lisa H.,
Coles Simon J.,
Laulloo Sabina J.,
Bhowon Minu G.
Publication year - 2015
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201500049
Subject(s) - chemistry , sulfur , copper , carboxylate , ligand (biochemistry) , pyridine , coordination polymer , metal , sulfate , polymer chemistry , polymer , inorganic chemistry , crystallography , stereochemistry , medicinal chemistry , organic chemistry , biochemistry , receptor
Slow diffusion reaction of 2,2′‐dithiodibenzoic acid (dtdb) with CuCl 2 in the presence of N‐donor ligands results in the formation of different coordination polymers where both S–S and C–S scission and oxidation of S is observed. X‐ray diffraction analysis of [Cu(tdb)(phen)(H 2 O)] 2 · 2H 2 O.2DMF] ( 1 ), [Cu(tdb)(py) 2 (H 2 O)] 2 ( 3 ), and [Cu(tdb)(bipy)(H 2 O)] 2 · 0.5H 2 O ( 4 ) (tdb = thiodibenzoic acid, phen = phenanthroline, py = pyridine, bipy = 2,2′‐bipyridine) show that the metal ions are coordinated to the carboxylate oxygen atoms of the in situ generated tdb ligand in a monodenate fashion. In [Cu(phen)(SO 4 ) 2 (H 2 O) 2 ] n ( 2 ) and [Cu(bipy)(SO 4 ) 2 (H 2 O) 2 ] n ( 5 ), the sulfur is oxidized to sulfate ions prior to coordination with the metal. Complex 1 has a dimeric structure with π–π interactions between the phen ligands, whereas 3 and 4 form 1D polymeric chains.