![infrared spectrum of butanal prominent wavenumbers cm-1 detecting functional groups present finger print for identification of butyraldehyde image diagram doc brown's advanced organic chemistry revision notes infrared spectrum of butanal prominent wavenumbers cm-1 detecting functional groups present finger print for identification of butyraldehyde image diagram doc brown's advanced organic chemistry revision notes](https://docbrown.info/page06/spectra/butanal-ir.gif)
infrared spectrum of butanal prominent wavenumbers cm-1 detecting functional groups present finger print for identification of butyraldehyde image diagram doc brown's advanced organic chemistry revision notes
![organic chemistry - Distinction between whole molecules and functional groups in IR spectra - Chemistry Stack Exchange organic chemistry - Distinction between whole molecules and functional groups in IR spectra - Chemistry Stack Exchange](https://i.stack.imgur.com/WsFwI.png)
organic chemistry - Distinction between whole molecules and functional groups in IR spectra - Chemistry Stack Exchange
![DFT-Calculated IR Spectrum Amide I, II, and III Band Contributions of N-Methylacetamide Fine Components | ACS Omega DFT-Calculated IR Spectrum Amide I, II, and III Band Contributions of N-Methylacetamide Fine Components | ACS Omega](https://pubs.acs.org/cms/10.1021/acsomega.9b04421/asset/images/medium/ao9b04421_0005.gif)