An Alkane IR Spectrum wavelength (um) 2.5 3.5 45 5 5.5 6 910 111213141516 100 80 60 40 C-H bending 20 C-H stretch CH(CH).CH (a)n-hexane 4000 3500 3000 2500 2000180016001400 12001000 800 600 wavenumber(cm-) Chapter 12 16
Chapter 12 16 An Alkane IR Spectrum =>
An Alkene IR Spectrum wavelength (um) 3.5 5.56 910111213141516 100 80 CH(CH)CH=CH2 3080 (b)1-hexene =C一H 40 ! stretch alkane C-H stretch 20 1642 C=C stretch C-H bending 计出 4000 3500 3000 2500 2000180016001400 12001000 800 600 wavenumber(cm-) 二> Chapter 12 17
Chapter 12 17 An Alkene IR Spectrum =>