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化学 > 《国外有机化学》 英文版 Chapter 12 Infrared Spectroscopy and Mass spectrometry
《国外有机化学》 英文版 Chapter 12 Infrared Spectroscopy and Mass spectrometry
Spectroscopy is an analytical technique which helps determine structure. It destroys little or no sample. The amount of light absorbed by the sample is measured as wavelength is varied.
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An alkane IR Spectrum wavelength (um) 2.5 3.5 4 4.5 55.56 8910 l11213141516 100 C-H bending 20 C-H stretch CH3(CH,),CH (a) n-hexar 4000 3500 000 2500 200018001600140012001000 600 wavenumber(cm Chapter 12 16
Chapter 12 16 An Alkane IR Spectrum =>
An Alkene IR Spectrum length (um) 55.56 7 1213141516 CHa(CH2)CH=CH2 30 (b)l-hexene EEC-H stretch alkane C-H 20 1642 C-C stretch C-H bending 3500 3000 2500 200018001600140012001000 600 wavenumber(cm) Chapter 12 17
Chapter 12 17 An Alkene IR Spectrum =>
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