IR question

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wendywellesley

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can anyone tell me what wavenumber is alpha helix on IR? is it around 2900?
where is the water peak?
thanks!!
 
wendywellesley said:
can anyone tell me what wavenumber is alpha helix on IR? is it around 2900?
where is the water peak?
thanks!!

I don't know about the alpha helix, but I believe a water peak is found around 3400 cm-1. That's where IR picks up -OH groups.