Easy access to chiral penta- and hexacoordinate silicon compounds

Inorganic Chemistry Communications

Volumn 9, Issue 8, 2006, Pages 806-809

  Böhme, Uwe ^a   Wiesner, Sebastian ^a   Günther, Betty ^a  

^a TU BERGAKADEMIE FREIBERG   (Germany)

Author keywords

Chiral silicon; Complexes; Hypercoordinate

Indexed keywords

EID: 33746059085     PISSN: 13877003     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.inoche.2006.05.002     Document Type: Article

References (35)

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32. Electronic supplementary information available: characterising data for all new complexes.
33. 4, respectively). A white precipitate is formed immediately. The reaction mixture was stirred at room temperature for 2 h and at reflux temperature for 40 h. During that time the mixture became yellow to orange. The solvent was completely removed in vacuo and the residue was treated with n-hexane. The insoluble triethylammonium chloride was filtered off, washed with n-hexane and the volume of the filtrate was reduced in vacuo. Storage overnight in the refrigerator yielded the product, which was separated by filtration and dried in vacuo.
34. 1 = 0.081, absolute structure parameter -0.2(3). The absolute configuration of this structure was assigned according to the configuration of the chiral ligand, since the measured data do not allow unambiguous determination of the absolute structure. Data collected with a Bruker X8 APEX2 diffractometer. Intensities were collected with graphite monochromatised Mo Kα radiation at room temperature. The structure was solved by Direct methods, using the SHELXS program and refined by full-matrix least-squares method using SHELX97. CCDC No. 271 516.
35. 1 = 0.033, Absolute structure parameter 0.00(9). Data collected with a Bruker X8 APEX2 diffractometer. Intensities were collected with graphite monochromatised Mo Kα radiation at -180°C. The structure was solved by Direct methods, using the SHELXS program and refined by full-matrix least-squares method using SHELX97. CCDC No. 288 067.