H NMR splitting!

[Pulltoothad]

Hi guys,
Can anyone help me figure out why the H on the OH of ethanol (OH-CH2-CH3) does not split under H NMR. Aren't the Hydrogens on the CH2 group with in three bonds.
Also, H's on CH2 split into a quartet. I thought there is 3 Hs on CH3 and 1 H from OH which would be 4+1=5 and not 4!


thanks in advance,

Here is a image for H NMR of ehtanol:
http://www.york.ac.uk/res/sbd/nmr/etOH.jpg

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[Nontrad37]

Here is the answer.

http://www.chemistry.ccsu.edu/glagovich/teaching/316/nmr/couplingoxygen.html