SCHEDULED MAINTENANCE
Weak hydrogen bonding. Part 3. A benzyl group accepting equally strong hydrogen bonds from O–H and C–H donors: 5-ethynyl-5H-dibenzo[a,d]cyclohepten-5-ol
Abstract
In the crystal structure of the title compound, one of the benzyl groups accepts hydrogen bonds from a hydroxy and an ethynyl group, one to each face of the ring. For both hydrogen bonds, energies around –1.3 kcal mol–1 have been calculated. The bond donated by the hydroxy group has unusual geometry and is directed almost linearly at a C atom with H ⋯ C = 2.36 Å.
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