Hello, and welcome to this short online course on molecular spectroscopy. My name is Patrick O'Malley. I'm a Professor of Chemistry at the University of Manchester in the United Kingdom. The aim of this course is to introduce you to the three main spectroscopic techniques that chemists use. Namely ultraviolet physical spectroscopy, infrared spectroscopy and nuclear magnetic resonance spectroscopy. Now molecular spectroscopy involves the measurement of the interaction of electromagnetic radiation with molecules. And by monitoring this, you can gain very important information about molecules. You can get information about the shape of the molecule. You can get information about the geometry, the bond lens, the bond angles. And you can also get information about the dynamics of the molecule, the movement of the atoms and the electrons within the molecule. And indeed, if you look at the kind of information we know currently about molecules, you find that most of it was obtained using these techniques. Now the content of the course is going to be delivered using short video screen casts or lectures. And these are identical to the lectures we use for our students here at Manchester. In addition, we're going to have a formative quiz every week so that you can assess your progress with the course. And we've also set up a simulated spectroscopic laboratory for you to actually run your own spectra. So, good luck, I hope you enjoy the course and find it helpful for whatever needs you are doing the course for. And I hope it inspires you to look further into the area of spectroscopy and perhaps chemistry in general.