1. Instrumental Methods

3. Mass Spectrometry

5. Mass Spectrometry (elements) Mass spectrum for Boron

6. Mass Spectrometry (fragments)

9. Infra-Red Spectroscopy http://www.cem.msu.edu/~parrill/AIRS/name_list.html This band at around 3300cm -1 is due to O-H stretching This band at around 1150cm -1 is due to C-O stretching

11. NMR There are 5 hydrogen atoms in a similar environment i.e. attached to the ring There are 3 hydrogen atoms in the CH 3 group A chemical shift of 7.3 is typical for aromatic compounds A chemical shift of 2.3 corresponds to a CH 3 group attached to a benzene ring

13. X-Ray Diffraction X-Ray diffraction photograph Computer simulated electron density map