Abstract
The photoelectron (PE) spectra of silatranes (1), 2,8,9-trioxa-5-aza-1-silabicyclo [3.3.3] undecanes, have been analyzed and partially reinvestigated. In the PE spectra of 1 the bands in the 8.2–8.9 eV region, which were previously ascribed to the lone electron pair (LEP) orbital of the nitrogen atom or the SiN bond, are due to the presence of impurities, the products of incomplete hydrolysis. Interpretation of the bands in the PE spectra of pure compounds was carried out by analysis of orbital-correlation diagrams and results of MNDO and AM1 calculations. The first ionization potential of1 is associated with a MO localized to a great extent on the axial X-Si-N fragment. The increase with shortening of the Si-N distance is related to the corresponding increase in the degree of noncoplanarity of the nitrogen atom when its LEP is involved in the hypervalent X-Si-N bond.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
