Area C

Area C

This Area is normally quite empty, with the exception of three very specific resonances:

  • The RS―H stretch of thiols between 2590 cm-1 and 2560 cm-1.

    spectrum and molecular structure of triphenylmethanethiol



  • The -C≡C- stretching frequency of alkynes (not visible for alkynes that are symmetric around the triple bond) between 2250 cm-1 and 2100 cm-1.

    spectrum and molecular structure of 1-hexyne


  • The -C≡N stretching frequency of nitriles between 2260 cm-1 and 2220 cm-1.

    spectrum and molecular structure of adiponitrile