Abstract
The effects of adding binuclear lanthanide(III)-silver(I) shift reagents to aromatic compounds and phosphines are discussed. With aromatic compounds, the silver bonds at sites away from alkyl substituents so that selective shifts, leading to significant spectral clarification, are observed. Because of different shifts, the analysis of complex mixtures such as the methylbenzenes in gasoline can be performed in the presence of these shift reagents. A study of the relative shifting ability of the binuclear complexes formed with the ligand 6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedione (fod), vs. 2,2,6,6-tetramethyl-3,5-heptanedione (thd), revealed that the fluorinated ligands are much more effective shift reagents.
Sign-in/Register to access full text options 
Free) 
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 call
