what is NUCLEAR MAGNETIC RESONANCE?

Answer 1

Nuclear magnetic resonance (NMR) is a physical phenomenon based upon the magnetic properties of an atom's nucleus. All nuclei that contain odd numbers of nucleons and some that contain even numbers of nucleons have an intrinsic magnetic moment. The most commonly used nuclei are hydrogen-1 and carbon-13, although certain isotopes of many other elements nuclei can also be observed. NMR studies a magnetic nucleus, like that of a hydrogen atom (protium being the most receptive isotope at natural abundance) by aligning it with a very powerful external magnetic field and perturbing this alignment using an electromagnetic field. The response to the field by perturbing is what is exploited in nuclear magnetic resonance spectroscopy and magnetic resonance imaging.

NMR spectroscopy is one of the principal techniques used to obtain physical, chemical, electronic and structural information about a molecule. It is a powerful technique that can provide detailed information on the three-dimensional structure of biological molecules in solution.

Source: WIKI

http://en.wikipedia.org/wiki/Nuclear_magnetic_resonance

Answer 2

I can give you a guess, I would say its the range of frequencies that oscillate nuclear material. Harmonic resonance frequencies. Like shattering glass with certain frequencies of sound, only using electro magnetism instead of sound.

Answer 3

Dr. Dave P is right. It is also the same technique used on us when we have MRI's done. An interesting note on NMR is it usually is useful on only fairly simple molecules. Trying to interpret the NMR of a protien, or of a transition metal catlyst, for instaance, can be a real nightmare.

Answer 4

NMR is the most powerful tool availlable for organic structure determination ,it is a form of spectroscopy that measures the absorbtion of radio-frequncy energy by nuclei in a magnetic field.the energy absorbed causes nuclear spin transition

Answer 5

There already appears to be a great answer below so I won't add anything except to say this:
If you still need help with NMR including graph determination, then watch this video series for a breakdown of the concepts http://leah4sci.com/ms-nmr-ir-spectroscopy/

Answer 6

the detectable differing frequencies of vibration of various elemental nuclei in the presence of a strong magnetic field.

Answer 7

the sound barrier and area where there is nuclear energy which is contained in a quantified area specifically related to the properties of nuclear energy.