Introduction.-During recent years an active interest has been taken in the characterization of N-substituted amido acids by means of their infrared spectra. 2 In general when these compounds are examined in solution or in the liquid state the strong carbon-oxygen stretching bands corresponding to the carboxyl and amide carbonyl are found at or near the expected values for simple acids and arnides, respectively. In the solid state, however, in ...
![Undecanoic acid,11-[(1-oxo-2-propen-1-yl)amino]- Structure](https://image.chemsrc.com/caspic/150/6268-48-0.png)
