Hydrogen bonds and C—H⋯O interactions in the enol tautomer of 4‐(phenylsulfonyl)spiro[cyclopentane‐1,9′‐[9H]fluorene]‐2,3‐dione |
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Authors: | Roger E Gerkin |
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Abstract: | The title compound, 2‐hydroxy‐1‐(phenylsulfonyl)spirocyclopentene‐4,9′‐9H]fluoren]‐3‐one, C23H16O4S, crystallized in the centrosymmetric space group P21/n with one molecule as the asymmetric unit. The hydroxyl‐H atom is ordered and participates in a single intramolecular hydrogen bond and in a single intermolecular hydrogen bond, in which the OD—H distance is 0.90 (2), H?OA is 2.34 (3), OD?OA is 2.987 (2) Å and OD—H?OA is 129 (2)°. The intermolecular hydrogen bond forms an R (12) cyclic dimer about a center of symmetry. There are six leading C—H?O interactions. Taken together, these interactions form a three‐dimensional network. Structural comparisons are made with tetrabenzodispiro4.0.4.3]tridecatetraene. |
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