Novel cage polycarbosilanes. Preparation and characterization of dodecamethyl-2,3,5,6,7,8-hexasilabicyclo[2.2.2]octane and its derivatives

Chemistry Letters

Volumn , Issue 11, 1998, Pages 1145-1146

  Shimizu, Masaki ^a   Inamasu, Naoko ^b   Nishihara, Yasushi ^b   Hiyama, Tamejiro ^a  

^a KYOTO UNIVERSITY   (Japan)

^b TOKYO INSTITUTE OF TECHNOLOGY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0032262075     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.1998.1145     Document Type: Article

References (26)

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19. 6 374.1589; Found 374.1611.
20. -1, T = 296 K; Of the 2894 reflections which were collected, 2795 were unique (Rint = 0.021). The final cycle of full-matrix least-squares refinement was based on 1796 observed reflections (I > 3.00σ(I)) and 92 variable parameters and converged with unweighted and weighted agreement factors of R = 0.044 and Rw = 0.049.
21. 2O turned out futile.
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25. A possible reasoning for the fact that a bridgehead dianion is prevented may be attributed to an electrostatic repulsion via through-space or through-bond interaction.
26. Further studies about the interpretation of UV absorbtion spectra are required. The details will be reported in due course.