Syntheses and crystal structures of the anhydride 4-oxa­tetra­cyclo­[5.3.2.02,6.08,10]dodec-11-ene-3,5-dione and the related imide 4-(4-bromo­phen­yl)-4-aza­tetra­cyclo­[5.3.2.02,6.08,10]dodec-11-ene-3,5-dione

Hulsman, A.; Lorenzana, I.; Schultz, T.; Squires, B.; Stenfors, B.A.; Tolonen, M.; Staples, R.J.; Biros, S.M.; Winchester, W.R.

doi:10.1107/S2056989020009512

Acta Crystallographica Section E
Acta Crystallographica
Section E CRYSTALLOGRAPHIC COMMUNICATIONS

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Figure 6
Non-covalent interactions present in the crystal of imide II, using a ball-and-stick model. Only those hydrogen atoms involved in an interaction are shown for clarity. C—H⋯O hydrogen bonds are shown with purple, dashed lines, while C—H⋯π and C—Br⋯π interactions are shown with green, dashed lines. Symmetry codes: (i) x, y − 1, z; (ii) −x + $[{1\over 2}]$ , y + $[{1\over 2}]$ , −z + $[{3\over 2}]$ .

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

Volume 76| Part 8| August 2020| Pages 1311-1315

https://doi.org/10.1107/S2056989020009512

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