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Figure 4 π–π stacking inter­action in the crystal structure of (I). The angle α is the angle between the ring normal and centroid-centroid vector and d is the displacement between two rings (or centroids).

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 70| Part 7| July 2014| Pages m267-m268
https://doi.org/10.1107/S1600536814013695
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