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Chemistry Forums for Students => Organic Chemistry Forum => Organic Spectroscopy => Topic started by: bus12 on April 10, 2015, 07:53:29 PM

Title: Organic Unknown
Post by: bus12 on April 10, 2015, 07:53:29 PM

Hi all!

I need help finding my organic unknown.
Here is what I know: there were two chemicals in one.

We separated them, ran solubilities, the IR and the NMR's.

The original mixture was red with no strong oders.

Product 1:
Clear
Temperature of pure product: 78C
Only soluble in water, neutral on litmus.
Ethyl Alcohol?

CNMR
(https://www.chemicalforums.com/proxy.php?request=http%3A%2F%2Fi857.photobucket.com%2Falbums%2Fab135%2Fmrazj150%2Fc_zpskzcwuzem.png&hash=19eedeedf0b9b75ca23f8c290550a1e3d7ab49e5)


The IR
(https://www.chemicalforums.com/proxy.php?request=http%3A%2F%2Fi857.photobucket.com%2Falbums%2Fab135%2Fmrazj150%2FIR_zpsdzkt2oaa.png&hash=9ddd13d80844591b9520d5baa48f42bf7480e62a)


The HNMR
 (https://www.chemicalforums.com/proxy.php?request=http%3A%2F%2Fi857.photobucket.com%2Falbums%2Fab135%2Fmrazj150%2Fh_zpsi8aby1hx.png&hash=a1137a977f84e65c2dd343614b8fb127783e8c16)

Product 2:
Pure seperation temp of around 178C
Only soluble in HCl, so amine?
Was red, but instructor was surprised at that.

IR
(https://www.chemicalforums.com/proxy.php?request=http%3A%2F%2Fi857.photobucket.com%2Falbums%2Fab135%2Fmrazj150%2FScreen%2520Shot%25202015-04-10%2520at%25206.48.44%2520PM_zpsn3tle57j.png&hash=86f882b0167905bf03a31d76efc97e9e9544613a)

CNMR
(https://www.chemicalforums.com/proxy.php?request=http%3A%2F%2Fi857.photobucket.com%2Falbums%2Fab135%2Fmrazj150%2Fc_zpsix1fdy7u.png&hash=2dabda37818ef7fee4354c0ae853de2c1805eb86)

HNMR
(https://www.chemicalforums.com/proxy.php?request=http%3A%2F%2Fi857.photobucket.com%2Falbums%2Fab135%2Fmrazj150%2FScreen%2520Shot%25202015-04-10%2520at%25206.48.33%2520PM_zpshjag0koj.png&hash=7f0eb70a8df105125762a6de49b8ce8f09c6774f)

Title: Re: Organic Unknown
Post by: bus12 on April 10, 2015, 07:56:11 PM

Honestly, I think there is error in the IR and NMR. More specifically, I do not think the two were separated well enough. We used a condenser to do it, and it for some reason the condensed liquid would not go to the collection flask at the end.

Title: Re: Organic Unknown
Post by: bus12 on April 10, 2015, 07:57:32 PM

Also, we are permitted to use SDBS, but I just cant seem to get it to work.