Software packages used to collect and analyse data from this technique include MestReNova, (15[1])which can also be used to perform CASE. In the presence of aluminium bromide, a compound utilised in this technique undergoes PARNES transfer, to transfer a methyl group to a carbenium ion. In this technique, asymmetries can occur due to the ‘roof effect’. In this technique, analysis of a free induction decay gives information about the (*) Larmor precession. When analyzing results from this technique, “tickling” can be used to separate coupled peaks. In this technique, signals (10[1])are given relative to tetramethylsilane and are called the chemical shift. For 10 points, what technique, whose types include hydrogen-1 and carbon-13, (10[1])probes spin using a magnetic field to identify distinct chemical environments? ■END■