Tagged questions

Does anyone know something about paramagnetic relaxation enhancement (PRE)?

5 1 26836
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Does anyone know something about paramagnetic relaxation enhancement (PRE)? i would like to try this method on my cellul...
Posted: Nico T 33 / Updated: Bharathwaj 112 Oct 19 '10 at 08:48

Chemical Potential By NMR

3 2 4k
answers votes views
New to NMR, but a coworker mentioned that it may be possible to obtain chemical potential for a solution (polymer in sol...
Posted: jclark419 21 / Updated: SankarampadiAravamudhan 91 Oct 13 '10 at 19:50

Absence of some signals on 1H and 13C spectra of polyaromatic carboximidate

3 0 4k
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Hi, I have encountered a strange behaviour of some signals (they are absent) in a series of polycyclic aromatic carboxi...
Posted: Arkadiusz Leniak 238 / Updated: zablociak 21 Mar 23 '15 at 12:11

About paragnetic impurities, inorganic salts, bad workups, etc. and their impact on small-molecule NMR spectra

2 1 16703
answers votes views
I sometimes face the challenge of explaining to my organic chemists that, even if no impurity signals are visible in the...
Posted: Sylvain Demanze 71 / Updated: djh 1 Aug 11 '11 at 03:19

Can correct TAUc be a sufficient evidence of the absence of aggregation?

2 0 4k
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Hello! I am studying the protein backbone dynamics using the standard set of NMR relaxation parameters (R1, R2, NOE). ...
Posted: Andrey 1 / Updated: Yoan Monneau 136 Jul 01 '11 at 03:52

13C quaternary centers in amino acids

2 0 3k
answers votes views
I've got a sample of about 5mg of an amino acid that is the final product of a a synthesis. Due to the long relaxation t...
Posted: Eneas 1 / Updated: Matthew Revington 41 Sep 06 '11 at 09:04

T1 Rho relaxation

2 0 6k
answers votes views
I am looking for some guidance on researching T1rho relaxation. Does anybody have updated information or references to e...
Posted: Robert Bussell 1 / Updated: Alexey Potapov 21 Oct 15 '11 at 04:56

Relaxation editing vr paramagnetic relaxation enhancement experiments - 13C CP-MAS NMR

1 1 5k
answers votes views
I am a beginner in NMR spectroscopy and I would like to learn more about relaxation editing experiments vs PRE. A collea...
Posted: Nico T 33 / Updated: bmoret42 11 Jan 25 '11 at 12:29

Best Relaxation delay 3D NMR

1 1 4k
answers votes views
Dear NMR WIKIers I prefer to measure best relaxation delay for 3D nmr experments by giving array ( like 0.5 , 0.6 , 0....
Updated: sri 71 May 24 '11 at 02:44

1H t2 measurement in solid state nmr

1 0 3k
answers votes views
How to measure t2 of 1H in solid state nmr? we use saturation burst followed by cp to measure T1 of 1H in solid state in...
Posted: vgk 1 / Updated: Ulrich Haunz 210 Mar 05 '12 at 03:34
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