Abstract
The Lewis acid-base interactions of organotin mono-, di-, and tri-halides with triethylphosphine oxide (TEPO) were investigated by determining the 31P chemical shift of equimolar mixtures of the acid and base in benzene. The concentration dependence of this shift was used to determine the equilibrium constant for formation the 1 1 adduct. The acceptor number of the acid was obtained from the 31P chemical shift of the adduct and by extrapolation of the 31P shift to infinite dilution. Equilibrium constants for the complexes of the same acids with both TEPO and triphenylphosphine oxide (TPPO) were correlated by multiple regression analysis with these acceptor numbers (AN) and the molar refractivities (MR) of the acids. Enthalpy changes for the formation of adducts with TPPO were also found to correlate with AN aNd MR.
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.
