羧酸、酯類、醯胺辨別之紅外線光譜吸收(infrared spectroscopy absorption of carboxlic, esters and amide)

化合物
C=O吸收頻率(cm-1)
額外吸收頻率(cm-1)
RCONH2
1630~1680
N-H(延展)32003400一級胺有2個峰值;二級胺只有1個;三級胺無N-H鍵,沒有此區

RCOOH
1700~1725
O-H(延展)2400~3400
C-O(
延展)1210~1320
RCOOR
1735~1800




C-O(延展)1000~11001200~1250
                  丁酸的紅外線光譜圖(butanoic acid IR)
               丁酸乙酯的紅外線光譜圖(ethyl butyrate IR)
參見:
 紅外線光譜(infrared spectroscopy)
  官能基與紅外線光譜的關係(relation between functional group and infrared spectroscopy)
  烷、烯、炔之碳-氧鍵結與紅外線光譜(infrared spectroscopy of alkanes, alkenes, alkynes and hydrocarbon)
   苯及其延伸物鍵結與紅外線光譜(infrared spectroscopy of benzene and its derivations)
   醇類鍵結與紅外線光譜(infrared spectroscopy of alcohol)
   酯類鍵結與紅外線光譜(infrared spectroscopy of ehters)
   胺類鍵結與紅外線光譜(infrared spectroscopy of amines)
   醛類、酮類鍵結與紅外線光譜(infrared spectroscopy of aldehydes and ketones)
   羧酸、酯類、醯胺辨別之紅外線光譜吸收(infrared spectroscopy absorption of carboxlic, esters and amide)
  分子振動(molecule vibration)

0 意見:

張貼留言

 
TOP