Dispiro[indene-2,5 '-indeno[2,1-a]-fluorene-6 ',2 '-indene]-1,1 '',3,3 '',11 ',12 '-hexaone: a three-dimensional hydrogen-bonded framework

Fabian Orozco, Braulio Insuasty, John N. Low, Justo Cobo, Christopher Glidewell

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The title compound, C36H16O6, (I), was obtained as a new and unexpected oxidation product of 1,2'-biindene-1',3,3'(2H)-trione. The molecules of (I) exhibit approximate, but noncrystallographic, twofold rotation symmetry and the central ring of the fused pentacyclic portion is distinctly puckered, with a conformation intermediate between half-chair and screw-boat. Six independent C - H center dot center dot center dot O hydrogen bonds link the molecules into a three-dimensional framework structure of considerable complexity. Comparisons are drawn between the crystal structure of (I) and those of several simpler analogues, which show wide variation in their patterns of supramolecular aggregation.

Original languageEnglish
Number of pages4
JournalActa Crystallographica Section C-Crystal Structure Communications
Publication statusPublished - Mar 2008


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