Hello, and organic synthesis peeps. I'm going to go through appendix 1, how to set up a reaction under nitrogen. This is the most simple way to do this process. There are much more complicated ways if your reagents are more air-sensitive. This is suitable for reagents that are slightly oxygen-sensitive but not particularly moisture-sensitive. The basic premise of this is we're going to have nitrogen going into a reaction. We slowly take apart the different joints and nitrogen will flow through, flushing the whole system with nitrogen to flush all of the air and water vapor out. At the end, we'll have a closed system ready to do our chemical reaction. appendix 7 talks about the solvent purification system, the SPS. This is where we get our dry solvents that we would use for setting up an air-sensitive reaction. I'm not going to demonstrate that right now because I'm not actually going to be using chemicals in this demo. Here is a glassware that you need to do this reaction, a tunic flask, a stopper that fits your tunic flask, a nitrogen inlet adapter that fits your flask. An addition funnel is optional, a stir bar, and finally a nitrogen outlet adapter. We're going to do our reaction in a tunic flask which already has a stir bar inside. So I'll plant it. And the next step is to turn on the nitrogen. So if you go to the nitrogen valve here, you just need to turn it a little bit. You want to keep your eye on the bubbler. Which is over here. So that's probably a little bit too much, but that's fine. This, the nitrogen comes in from the valve through this top manifold to the bubbler. If there's a half of least resistance, if I open this valve, the bubbler stops, and that much nitrogen flow is now coming out of this hose. So I can attach the hose to my nitrogen inlet adapter and put it on into my flask. Now the nitrogen is flowing through the flask. I can take a stopper. If I put the stopper in, the bubbler is now bubbling because I have a closed system. So I'm not currently purging the flask. So I use my nitrogen outlet adapter to create a small opening. So nitrogen is now flowing through my system. And I want to leave it like this for about 30 seconds to a minute. Okay, it's been about a minute. Let's check on our reaction. So I purged this flask with nitrogen. I removed it with the outlet adapter, replaced the stopper. The bubbler is now bubbling. I have a positive pressure of nitrogen. So any small leaks in my system, nitrogen will go out instead of air going in. If I wanted to add a reagent or a solvent, I could turn up the nitrogen. So turn the valve slightly. Bubbler is now bubbling a lot. I can remove the stopper, add my reagent, put the stopper back in, and I'm keeping a positive flow of nitrogen the whole time. In some cases you'll need to use an addition funnel to add your reagent slowly. This is a pressure equalizing addition funnel, so it has an open channel here. It's a little bit tricky to flush that this with nitrogen. So I'll show that. Replace this onto our flask. The bubbler is bubbling. And I'll put the stopper up on the top. Now I have a closed system, but I want to purge both this side channel and the main channel. So I'll start by purging the side channel. So this valve is off. The nitrogen is going to go through this side channel. Wait about 30 seconds to a minute. Then open the valve. Now I'm purging up the main chamber and going out where the stopper is. After 30 seconds to a minute, I remove the outlet adapter, place the stopper back in, and I'm back under positive pressure. Hello, inorganic synthesis. Hmm. Thank you. Hello, inorganic synthesis. Hmm.