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Full Paper
Cocrystallising Rotamers of a Pentacoordinate Silicon Complex with a Chiral Aminodiol Ligand
Article first published online: 25 JAN 2013
DOI: 10.1002/ejic.201201173
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Schlecht, S., Finze, M., Bertermann, R., Frank, W., Domann, A. and Braun, M. (2013), Cocrystallising Rotamers of a Pentacoordinate Silicon Complex with a Chiral Aminodiol Ligand. Eur. J. Inorg. Chem., 2013: 1488–1492. doi: 10.1002/ejic.201201173
Publication History
- Issue published online: 12 MAR 2013
- Article first published online: 25 JAN 2013
- Manuscript Received: 27 SEP 2012
Keywords:
- Chirality;
- Crystal structure;
- Density functional calculations;
- Solid-state NMR spectroscopy;
- Silicon;
- Stereomutation
Abstract
Crystal structure analysis reveals the cocrystallysation of two turnstyle rotamers of a pentacoordinate silicon complex with a chiral backbone derived from 2-amino-1,1,2-triphenylethanol. The structures of the two epimers are well reproduced by DFT calculations. In addition, the coexistence of two rotamers, which readily interconvert in solution, is confirmed by their solid-state NMR spectroscopic data. Possible mechanisms of their interconversion are discussed, and preference is given to a turnstile-like rotation of three ligands at the silicon atom about 120°.