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Benzene-1,2,4,5-tetra­carboxyl­ic acid di­methyl sulfoxide disolvate: a redetermination at 150 K

✍ Scribed by Dale, Sophie H. ;Elsegood, Mark R. J.

Publisher
International Union of Crystallography
Year
2003
Tongue
English
Weight
165 KB
Volume
59
Category
Article
ISSN
1600-5368

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✦ Synopsis

The title compound, C 10 H 6 O 8 .2C 2 H 6 OS, one of the few known examples of the cocrystallization of pyromellitic acid with common organic solvents, has been previously analysed by single-crystal X-ray diffraction at 296 K [Jin, Pan, Shen, Li & Hu (2003). Acta Cryst. C59, o205±o206]. We present here a redetermination at low temperature (150 K). The centrosymmetric compound crystallizes in space group P1 and exhibits co-operative strong (acid)OÐHÁ Á ÁO(solvent) and weaker (solvent)CÐHÁ Á ÁO(acid) hydrogen-bonding interactions, giving rise to a one-dimensional ribbon structure along the bc diagonal of the unit cell.

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