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
1. A compound has a strong absorption near 1720 cm
-1
in its infrared spectrum, no strong absorption in its UV spectrum and a parent ion at
m
/
z
86 in its mass spectrum. Its
1
H NMR spectrum is given below. Which of the structures below is consistent with these data.
(a)
(b)
(c)
(d)
(e)
(f)
(This question is for self assessment and your answer and score will not be recorded.)
Jump to:
Q2
,
Q3
,
Q4
©
Prof Adam Bridgeman
, School of Chemistry, The University of Sydney, 2024