Crystal structures of 4-methyl-2-oxo-2H-chromene-7,8-diyl di­acetate and 4-methyl-2-oxo-2H-chromene-7,8-diyl bis­(pent-4-ynoate)

Akinyemi, A.; Thomas, C.; Marsh, W.; Butcher, R.J.; Jasinski, J.P.; Maynard-Smith, L.A.

doi:10.1107/S2056989016005892

Acta Crystallographica Section E
Acta Crystallographica
Section E CRYSTALLOGRAPHIC COMMUNICATIONS

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Figure 4
Packing diagram for (2), viewed along the a axis. R₂²(24) hydrogen bonds involving the acidic sp H and O2 atoms link the molecules into centrosymmetric dimers. C—H⋯O secondary interactions are drawn with dashed lines.

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

Volume 72| Part 5| May 2016| Pages 704-708

doi:10.1107/S2056989016005892

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