It's a pretty good store. http://www.sigmaaldrich.com/catalog/...g=en®ion=US
Their amino acid selection is unrivaled.
My company is in the market to have a good amount of this ionic fluid produced. Depending on how well it works and how much it will cost, there is also a good chance we will need it produced in commercial quantities on a long-term basis.
If anyone is capable of producing a few samples of this fluid, reply or pm me with contact info and an estimate on costs/fees insofar as it is possible.
1-butyl-2,3-dimethylimidazolium tetrafluoroborate, [bmmim][BF4].
The molecule that you linked looks like the same one I have but there is a difference in the diagram. I haven't had a chemistry class in a very long time, but this seems like an important difference, no? (the one I have in the OP is on the left, the one you linked is on the right.)
EDIT: After a little research, every imidazolium molecule I can find is a cation (negative charge). Maybe this is the same molecule but with just a slight variance in notation?
Last edited by Tortfeasor; 08-20-2013 at 01:36 AM.
This looks like organic notation, where the unnamed atom at each joint is a Carbon atom (I believe, I haven't taken organic yet taking it starting here in a week and a day....but I have the textbook and the first thing they tell you is in organic when drawing lewis structures you don't place Carbons because they are assumed). So the left atom has a positive Carbon cation where the + sign is at the bond location between the two Nitrogens and the CH3, while the other molecule has a double bond on that Carbon atom and a positive Nitrogen cation.
I would say that that is enough to make them different molecules, but they could be resonance structures, or it could be a difference in notation conventions for whatever reason.
Disclaimer: I don't have my bachelors in chemistry yet and haven't finished organic, nor do I have any physical/thermochemistry/inorganic background, so I could be wrong.
They are resonance structures of the same compound. The structure on the right is probably the most significant contributor which is why you are seeing it drawn that way.
That is fucking amazing.
I will run it by my guys to see if we would be interested in making any.
It's been a looong time since I've exercised any chemical knowledge, so shoot me if I'm wrong, but they look like isomers to me but not the same compound. A carbon atom wants a total of 8 electrons (octet rule), with each bond containing two electrons. In the absence of four total bonds, ions can take their place. In the case above, the one on the left has a carbocation. The one on the right has a simple double bond with an aziridinium ion. It is actually unlikely that the compound on the left is inert, as carbocations are usually highly reactive. Out of curiosity, are you using this "fluid" as part of a reaction?
Initially I thought it was just notation error with an unclear placement of the positive ion, but that double bond on the right hand molecule paints it as a different compound to me, although it is an isomer.
It' just resonance of the same molecule, as said earlier. They aren't isomers.
I love this forum. Thanks for the help guys.
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