Organic Chem- O-H and O-D stretching frequency
Why is there a big difference between O-H bond stretching frequency (3600 cm-1) and O-D stretching frequency (2600cm-1) ?
Original post by Suzi.Letham
Why is there a big difference between O-H bond stretching frequency (3600 cm-1) and O-D stretching frequency (2600cm-1) ?
Isotope effects the stretching frequencies as the different masses change the energy levels of the harmonic oscillator. Happens for all isotopes but is pronounced in H/D because the %mass difference is so high compared to say O16/18 or C12/13
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