suu conjugation ➢ how to tell apart a c=o bond and a c=c bond? ➢ why do primary amines have two signals and secondary amines have one?
suu conjugation
chem 2320: dr. werner organic chemistry ii exam 1 chapter 15: infrared spectroscopy and mass spectroscopy key vocabulary to know key numerical data to know key concept 15.1 introduction to spectroscopy ➢ frequency is directly proportional to energy; wavelength is inversely proportional ➢ ir spectroscopy uses infrared light and causes molecular vibration and stretching ➢ ir spectroscopy is used to tell the functional groups and bonds in a compound ➢ neat means a pure sample is used ➢ only organic molecules can absorb ir radiation not ionic molecules; this is why salt plates can be used 15.2 ir spectroscopy ➢ wavenumber is the x-axis measured in inverse cm; higher wavenum