Abstract
In the title compound, C30H22BrNO2, the cyclopentane ring of the dihydroacenaphthylene group and the pyrrolidine ring are both in envelope conformations with the spiro C atom and N atom, respectively, as the flap atom. The cyclopentane ring of the indane group adopts a half-chair conformation. A weak intramolecular C—H⋯O hydrogen bond forms an S(8) ring motif. The naphthalene ring system of the dihydroacenaphthylene group forms dihedral angles of 41.76 (6) and 42.17 (6)° with the benzene ring of the bromophenyl group and the benzene ring of the indane group, respectively. The dihedral angle between the two benzene rings is 83.92 (7)°. In the crystal, molecules are linked by weak C—H⋯O and C—H⋯N hydrogen bonds into a two-dimensional network parallel to the ac plane. Weak C—H⋯π interactions are also observed.
Highlights
C30H22BrNO2, the cyclopentane ring of the dihydroacenaphthylene group and the pyrrolidine ring are both in envelope conformations with the spiro C atom and N
Molecules are linked by weak C—H O and C—
For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986)
Summary
40 -(4-Bromophenyl)-10 -methyldispiro[acenaphthylene-1,20 -pyrrolidine-30 ,20 0 indane]-2,10 0 (1H)-dione. C30H22BrNO2, the cyclopentane ring of the dihydroacenaphthylene group and the pyrrolidine ring are both in envelope conformations with the spiro C atom and N atom, respectively, as the flap atom. The cyclopentane ring of the indane group adopts a half-chair conformation. A weak intramolecular C—H O hydrogen bond forms an S(8) ring motif. The naphthalene ring system of the dihydroacenaphthylene group forms dihedral angles of 41.76 (6) and. 42.17 (6) with the benzene ring of the bromophenyl group and the benzene ring of the indane group, respectively. The dihedral angle between the two benzene rings is 83.92 (7). Molecules are linked by weak C—H O and C—.
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