How does deuterium exchange with hydrogen in molecules?

[baqi]

Deuterium is heavier then Hydrogen so a metal bonded to H vs. C can be determined by isotopic exchange and then using Infrared Spectroscopy/mass spec. But how do you replace hydrogen with deuterium?

a.Dehydrogenation and then add deuterated solvents (heavy water or CDCl3 ..deuterated chloroform)?
b.Just dissolve cpd in deuterated solvent?

I have doubts about the above mentioned applications…so how what is the meachanism?

Thanks for your help

Wait …what is the difference between isotope exchange vs. isotope labeling?

Thanks

 

[baqi]

opos I think this should have been under the homework "other sciences" section...So sorry!

back to the question I think if you have some thing as simple as a M-H bond you can just dissolve it is deuterated solvents! ~ right?