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How do you calculate nmr j value for quartet and for multiple?
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How do you calculate nmr j value for triplet and for multiple?
for a triplet. You have to take the (difference between the middle and one of the outer frequencies)* the frequency in MHZ
How do you calculate the number of protons from NMR spectrum?
Answering "http://wiki.answers.com/Q/How_do_you_calculated_the_percentage_of_an_isomer_using_proton_nmr"
In NMR the value of alkynyl proton is less than the value os alkenyl proton?
When alkynyl molecules are placed in NMR instrument the induced magnetic field of molecules are in Diamagnetic region of external magnetic field. There fore the resultant energy will be low
What is the difference between NMR and FT- NMR instrumentation?
NMR Spectroscopy Use molecule Structure FT NMR Use Different No. of mass Structure
Why J value for mutually coupled hydrogen atoms calculated from the NMR print out often do not match?
NMR print outs are usually rounded to three decimal places, A rounding 'error' of 0.001 will equate to a J value 'error' of 0.3 (on a 300 MHz machine.)
How do you interpretation a cosy nmr?
cosy is a one of 2D-NMR technique
When was Journal of Biomolecular NMR created?
Journal of Biomolecular NMR was created in 1991.
Returned Mail came back with stamps crossed out and NMR written on the envelope What is NMR?
no mail recepticle
How do you get proton decoupled spectra of 13C NMR?
There should be a button that lets you do this very easily. There is on a Brukker 400MHz NMR.
What range of electromagnetic radiation is used in NMR?
Molecules emit electromagnetic radiation in NMR spectroscopy.
What is the difference between 500 MHz and 400 MHz NMR?
basically, the higher the MHz value, the stronger the magnet, meaning less distortion and cleaner spectra.
Is NMR a solvent extraction technique?
NMR stands for Nuclear Magnetic Resonance. It's an analytical/spectrographic technique based on the Zeeman effect.
