Packing similarities of three isosteric molecules: 4,5-dichlorophthalic anhydride, 4,5-dibromo­phthalic anhydride and 5,6-dichlorobenzfurazan 1-oxide, including three polymorphs of 5,6-dichlorobenzfurazan 1-oxide

Ojala, C.R.; Ojala, W.H.; Britton, D.; Gougoutas, J.Z.

doi:10.1107/S0108768199000348

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 2
Polymorphs A, B and C of CBF. Displacement ellipsoids are shown at the 50% probability level and H atoms are shown as spheres of arbitrary radii. The two orientations for each polymorph are shown in the correct juxtaposition. In A and C the molecules are located on a twofold axis and present in equal amounts. In B the shaded molecule is the predominant orientation (about 60%).

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 55| Part 4| August 1999| Pages 530-542

doi:10.1107/S0108768199000348

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