A 2:1 sulfamethazine–theophylline cocrystal exhibiting two tautomers of sulfamethazine

Lu, J.; Cruz-Cabeza, A.J.; Rohani, S.; Jennings, M.C.

doi:10.1107/S0108270111024280

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 3
A molecular packing diagram, viewed approximately down the b axis, showing the hydrogen-bonding network linking the two ribbons of sulfamethazine together. Atoms involved in hydrogen bonding are labelled and hydrogen bonds are indicated by thin or dotted lines. Disordered H atoms of methyl groups (C38, C44 and C48) have been omitted for clarity. [Symmetry codes: (iii) −x + 1, y + $[1 \over 2]$ , −z + $[1 \over 2]$ ; (vii) −x + 1, y − $[1 \over 2]$ , −z + $[1 \over 2]$ ; (viii) −x, y − $[1 \over 2]$ , −z + $[1 \over 2]$ .]

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 67| Part 8| July 2011| Pages o306-o309

doi:10.1107/S0108270111024280

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