9,9-Dimethyl-9-silafluorene

  • The title compound, C14H14Si, crystallizes with two almost identical molecules (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 molecules in the asymmetric unit). The Si-Cmethyl bonds are significantly shorter [1.865 (4)-1.868 (4) Å] than the Si-Caromatic 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)°. Key indicators: single-crystal X-ray study; T = 173 K; mean σ(C–C) = 0.005 A°; R factor = 0.061; wR factor = 0.157; data-to-parameter ratio = 16.3.

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Metadaten
Author:Jan Mewes, Hans-Wolfram LernerGND, Michael BolteORCiD
URN:urn:nbn:de:hebis:30-68906
DOI:https://doi.org/10.1107/S1600536809003614
Parent Title (English):Acta crystallographica / Section E, Structure reports online
Document Type:Article
Language:English
Year of Completion:2009
Year of first Publication:2009
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2009/09/02
Volume:65
Issue:o451
Note:
ISSN 1600-5368 ; Copyright © International Union of Crystallography ; This licence is identical to the Creative Commons Attribution Licence. http://journals.iucr.org/services/oa/openaccess_e.html
Source:Acta Crystallographica Section E, Structure Reports Online, 2009. E65, o451 [ doi:10.1107/S1600536809003614 ]
HeBIS-PPN:217318541
Institutes:Biochemie, Chemie und Pharmazie / Biochemie und Chemie
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften
Licence (German):License LogoDeutsches Urheberrecht