Abstract
The coordination of R 3SiH compounds with a nucleophile, Nu, to give the adduct R 3SiH·Nu produces changes in the 29Si NMR chemical shift and 1 J(SiH) that follow similar trends. Coordination of highly electronegative, ‘soft’, ligands is accompanied by the strongest low frequency shifts and the greatest increase in 1 J(SiH). Formal coordination of ‘hard’ electropositive ligands such as methyl can result in high frequency shifts and a decrease in 1 J(SiH). The 29Si NMR chemical shift range for the pentacoordinate neutral, anionic and cationic adducts is about σ − 110 to − 47 ppm, whereas the range for the related four-coordinate silanes is greater at σ + 24 to − 76 ppm.
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.
