Paramagnetic Kaplan mnemonic

[SaintJude]

So anyone who has Kaplan's review notes, knows that the side bars have the most important info. So Kaplan included this side note & I have no idea how it could be applied to a problem.

Remember that paramagnetic means that a magnetic field will cause parallel spins in unpaired electrons and therefore cause an attraction.

And so??

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[tttgo]

Paramagnetic means that there's unpaired electrons, so they have parallel spins ( if more than 1 unpaired). In diamagnetic atoms, all the electrons are spin paired, so the spins are opposite. They're telling you the para name thing so you don't confuse the two. For a problem, you would have to know that paramagnetic attract a magnetic field.

 

[SaintJude]

hmm--ok Time for SN2ed' hat trick. Who can relate the paramagnetic topic to another one?

I will start & hopefully I'm right.
Bridge 1: Paramagnetism & NMR

Nuclear magnetic resonance involves the use of only paramagnetic nuclei b/c paramagnetic nuclei have "magnetic moments" (caused by their attraction to a magnetic field). So although 13C or 1H NMR is common, any nuclei with an odd mass or/and atomic number can be used. So 19-F, 17-O, 5-N and 31-P are all fair game to use in NMR.

So, I'm not sure: Are magnetic moments related a.k.a moments caused my paramagnetic field?

 

[chiddler]

Jeez...

" So 19-F, 17-O, 5-N and 31-P are all fair game to use in NMR."

🙁

 

[SaintJude]

kaplan's words! don't kill the messenger...😉

 

[syoung]

http://www.ru.nl/hfml/research/levitation/diamagnetic/
this is on the MCAT! MEMORIZE IT!