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5,6‐Dimethylbenzofurazan 1‐oxide (Me2BF), C8H8N2O2, occurs in four polymorphic forms that are polytypes of each other. Each polymorph of Me2BF contains molecules disordered about pseudo‐twofold axes and arranged head‐to‐tail in ribbons, with the ribbons forming approximately planar layers held together by weak C—H...N and C—H...O interactions. Adjacent layers interact in different ways in the different...
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