Premium
Structures of five salt forms of disulfonated monoazo dyes
Author(s) -
Gardner Heather C.,
Kennedy Alan R.,
McCarney Karen M.,
Staunton Edward,
Stewart Heather,
Teat Simon J.
Publication year - 2020
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/s2053229620012735
Subject(s) - chemistry , sulfonate , salt (chemistry) , metal , medicinal chemistry , solvent , polymer , benzene , stereochemistry , crystallography , polymer chemistry , sodium , organic chemistry
The structures of five s ‐block metal salt forms of three disulfonated monoazo dyes are presented. These are poly[di‐μ‐aqua‐diaqua[μ 4 ‐3,3′‐(diazane‐1,2‐diyl)bis(benzenesulfonato)]disodium(I)], [Na 2 (C 12 H 8 N 2 O 6 S 2 )(H 2 O) 4 ] n , (I), catena ‐poly[[tetraaquacalcium(II)]‐μ‐3,3′‐(diazane‐1,2‐diyl)bis(benzenesulfonato)], [Ca(C 12 H 8 N 2 O 6 S 2 )(H 2 O) 4 ] n , (II), catena ‐poly[[[diaquacalcium(II)]‐μ‐2‐(4‐amino‐3‐sulfonatophenyl)‐1‐(4‐sulfonatophenyl)diazenium] dihydrate], {[Na(C 12 H 10 N 3 O 6 S 2 )(H 2 O) 2 ]·2H 2 O} n , (III), hexaaquamagnesium bis[2‐(4‐amino‐3‐sulfonatophenyl)‐1‐(4‐sulfonatophenyl)diazenium] octahydrate, [Mg(H 2 O) 6 ](C 12 H 10 N 3 O 6 S 2 ) 2 ·8H 2 O, (IV), and poly[[{μ 2 ‐4‐[2‐(4‐amino‐2‐methyl‐5‐methoxyphenyl)diazen‐1‐yl]benzene‐1,3‐disulfonato}di‐μ‐aqua‐diaquabarium(II)] dihydrate], {[Ba(C 14 H 13 N 3 O 7 S 2 )(H 2 O) 4 ]·2H 2 O} n , (V). Compound (III) is that obtained on crystallizing the commercial dyestuff Acid Yellow 9 [74543‐21‐8]. The Mg species is a solvent‐separated ion‐pair structure and the others are all coordination polymers with bonds from the metal atoms to sulfonate groups. Compound (I) is a three‐dimensional coordination polymer, (V) is a two‐dimensional coordination polymer and both (II) and (III) are one‐dimensional coordination polymers. The coordination behaviour of the azo ligands and the water ligands, the dimensionality of the coordination polymers and the overall packing motifs of these five structures are contrasted to those of monosulfonate monoazo congers. It is found that (I) and (II) adopt similar structural types to those of monosulfonate species but that the other three structures do not.