Two different IR spectroscopy for the same molecule:

Note: The cyano stretching band should disappear upon cyclization of the molecule.

-The first IR spectroscopy (A) represents the cyano absorption observed in the 2190 cm-1 region.

-The second IR spectroscopy (B) represents two different stretching bands observed in the 2194 cm-1 and 2207 cm-1 regions.

Concerning the second spectroscopy (B), if the stretching band 2194 cm-1 represents the cyano group, then what functional group does the stretching band 2194 cm-1 present, or do these two stretching bands illustrate the same functional group.

Thank you for your help.