Introduction to Structure Determination  
Combined: Self Assessment Problems  
Introduction   Infrared   Ultraviolet   Mass Spectrometry   NMR   Crystallography   Combined  
 
  • Self Assessment Problems
    •
    Characteristic Chemical Shifts
    Characteristic Chemical Shifts
    Characteristic IR Absorption Frequencies
    3. A compound has a strong absorption near 1720 cm-1, but no absorptions above 3000 cm-1 in its infrared spectrum. It has a parent ion at m / z = 86 in its mass spectrum and its 13C NMR spectrum is given below. Give a structure consistent with these data.
     
     
    (a) (Z)-2-methylbut-1-en-1-ol   (b) (E)-2-methylbut-2-en-1-ol
    (c) 2-methylenebutan-1-ol   (d) 2-methylbutanal
    (e) (E)-2-methylbut-2-en-1-ol   (f) 3-methylbutan-2-one



    (This question is for self assessment and your answer and score will not be recorded.)


    Jump to: Q1, Q2, Q4


     
     © Prof Adam Bridgeman, School of Chemistry, The University of Sydney, 2024