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2,2',7,7'-Tetra-bromo-9,9'-spiro-bifluorene toluene hemisolvate.

ABSTRACT: There are two independent mol-ecules and one toluene solvent mol-ecule in the asymmetric unit of the title compound, C(25)H(12)Br(4)·0.5C(7)H(8). The dihedral angles between the fluorene ring systems are 85.30?(6) and 84.95?(6)° in the two mol-ecules. The disortions in angles from the ideal sp(3)-hybridization geometry around the tetra-hedral C atoms are due to the strain imposed by the central five-membered ring and steric effects.

SUBMITTER: Guo A

PROVIDER: S-EPMC2969217 | biostudies-other | 2009

REPOSITORIES: biostudies-other

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2,2',7,7'-Tetra-bromo-9,9'-spiro-bifluorene toluene hemisolvate.

Guo Ailing A Zhu Ruitao R

Acta crystallographica. Section E, Structure reports online 20090610 Pt 7

There are two independent mol-ecules and one toluene solvent mol-ecule in the asymmetric unit of the title compound, C(25)H(12)Br(4)·0.5C(7)H(8). The dihedral angles between the fluorene ring systems are 85.30 (6) and 84.95 (6)° in the two mol-ecules. The disortions in angles from the ideal sp(3)-hybridization geometry around the tetra-hedral C atoms are due to the strain imposed by the central five-membered ring and steric effects. ...[more]

PMID: 21582818

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