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9,9-Dimethyl-9-silafluorene.

ABSTRACT: The title compound, C(14)H(14)Si, crystallizes with two almost identical mol-ecules (r.m.s. deviation = 0.080?Å for all non-H atoms) in the asymmetric unit. All atoms of the silafluorene moiety lie in a common plane (r.m.s. deviations = 0.049 and 0.035?Å for the two mol-ecules in the asymmetric unit). The Si-C(meth-yl) bonds are significantly shorter [1.865?(4)-1.868?(4)?Å] than the Si-C(aromatic) bonds [1.882?(3)-1.892?(3)?Å]. Owing to strain in the five-membered ring, the endocyclic C-Si-C angles are reduced to 91.05?(14) and 91.21?(14)°.

SUBMITTER: Mewes J

PROVIDER: S-EPMC2968660 | biostudies-literature | 2009 Feb

REPOSITORIES: biostudies-literature

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9,9-Dimethyl-9-silafluorene.

Mewes Jan J Lerner Hans-Wolfram HW Bolte Michael M

Acta crystallographica. Section E, Structure reports online 20090204 Pt 3

The title compound, C(14)H(14)Si, crystallizes with two almost identical mol-ecules (r.m.s. deviation = 0.080 Å for all non-H atoms) in the asymmetric unit. All atoms of the silafluorene moiety lie in a common plane (r.m.s. deviations = 0.049 and 0.035 Å for the two mol-ecules in the asymmetric unit). The Si-C(meth-yl) bonds are significantly shorter [1.865 (4)-1.868 (4) Å] than the Si-C(aromatic) bonds [1.882 (3)-1.892 (3) Å]. Owing to strain in the five-membered ring, the endocyclic C-Si-C ang ...[more]

PMID: 21582124

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