4′-Methyl-14′,19′-dioxa-4′-aza­spiro­[acenaphthyl­ene-1,5′-tetra­cyclo­[18.4.0.02,6.08,13]tetra­cosa­ne]-1′(24′),8′,10′,12′,20′,22′-hexa­ene-2,7′(1H)-dione

Narayanan, S.; Srinivasan, T.; Purushothaman, S.; Raghunathan, R.; Velmurugan, D.

doi:10.1107/S1600536812046144

Figure 2 The crystal structure showing C-H

N and C-H

O hydrogen bonds (dashed lines); H atoms not involved in hydrogen bonding have been omitted for clarity. Symmetry codes: ⁱ - x, - $[{1\over 2}]$ + y, $[{1\over 2}]$ - z; ⁱⁱ 1 - x, $[{1\over 2}]$ + y, $[{1\over 2}]$ - z.