A linear correlation was determined for oxygen- and nitrogen-containing solvents between the proton NMR shift of chloroform, dilute in a solvent, and the donor number (DN) of that solvent. Results are given for water and for 13 organic solvents. The best straight line is given by DN=7.4-16.6Δδ (CHCl3) where Δδ (CHCl3) is the shift of pure chloroform relative to that of chloroform in dilute solution. Donor numbers of several solvents were estimated from the correlation.
- Donor number estimation
- oxygen- and nitrogen-containing solvents
- proton NMR solvent shift
- solvent basicity scale
ASJC Scopus subject areas
- Molecular Biology
- Physical and Theoretical Chemistry