icl ts pmo sm n sb rn ngl, r u srsly srs n fr rn vro?

ir spec memorize

O–H

3600 cm^-1

N–H

3500 cm^-1

C–H

3000 cm^-1

C≡N

2250 cm^-1

C≡C

2150 cm^-1

C=O

1715 cm^-1

C=C

1650 cm^-1

C–O

1100 cm^-1