I. A nuclear magnetic resonance study of amidinium ions in solution. II. The kinetics of the thermal decomposition of azobisisobutyramidines and their salts in solution
<p>Part I</p> <p>N. m. r. spectra of unsubstituted and symmetrically substituted aliphatic amidinium salts in dimethyl sulioxide or water demonstrate the presence of hindered internal rotation about the C_(CN)-N bonds in the amidinium groups. The kinetics of nitrogen-proton exc...