00:01
So in this problem, you have formaldehyde, formaldehyde, and you have methane thial.
00:13
And what i didn't draw here, which i'll try to roughly give an idea, is that each of these structures, you can calculate what's called an electropotential surface.
00:29
And this is going to map the 3d structure and show the positioning of the electrons.
00:37
So in formaldehyde, you can see you have a pretty high concentration of red coloring near the oxygen and a pretty good concentration of blue down near your carbon and your hydrogen atoms.
00:56
And you have a little bit of green in the middle and kind of gradations as you go from your red to your blue.
01:03
And so what these colors mean is that red is going to indicate a higher electron density.
01:15
And blue is going to indicate a lower electron density.
01:24
And so with the question wants to know from this, from these electrostatic potential maps, is the formaldehyde, the first one, is looking at this carbon atom.
01:36
So this carbon atom of formaldehyde, is it going to be more likely to be electrophilic or nucleophilic? and so if you look at the electrostatic potential map, this carbon is more, so your carbon is more in the blue to green area.
01:57
And so this tells you that you have lower electron density, density.
02:05
And because of this, it's going to more likely be electrophilic...