Unanswered questions

Bruker phase image recon

0 0 13
answers votes views
Hi all- I'm acquiring 1-2s/dynamic, single-slice gradient echo image series over a period of 10 minutes or so. By defau...
Posted: Nicholas E 11 2 days ago

dept nuclear magnetic resonance

0 0 238
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what it the difference between c13 and dept nmr? ...
Posted: dereje sharew 1 Apr 11 at 15:53

Bruker AV500 TOPSHIM error

1 0 48
answers votes views
Hi, I'm having a problem with topshim on Bruker AV 500 using topspin 2.1. it finishes with error (topshim: FieldMap - no...
Posted: jrlopez 1 / Updated: Jim Lin 1 Apr 14 at 06:23

nmr phenylethylamine

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answers votes views
hello...i know only the basics on nmr and need some help :i need H-NMR help with phenylethylamine Phe-CH2-CH2-NH-R - how...
Posted: ann choroshun 1 / Updated: Jim Lin 1 Apr 09 at 07:59

Distorted/antiphase signals when doing Dosy

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answers votes views
Hello, I am running Dosy experiment using ledbpgp2s sequence. I am getting sort of signal distortions. I tried the solu...
Updated: Umayal Rakesh 1 Apr 16 at 02:08

31P-31P COSY

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answers votes views
I like to run a 31P-31P COSY experiment to determine whether there is coupling between 1R-31P-CH2-31P-X in my molecule. ...
Updated: Jim Lin 1 Apr 09 at 07:54

splitting QCPMG echo train

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answers votes views
Hi all, I'm running qcpmg (qcpmgaq), using bruker topspin3. Does anyone have a suggestion how to split the echos train? ...
Posted: shon roni 1 Mar 23 at 04:07

How to calcualte eoors in ppm from Hz of Hsqc data?

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answers votes views
Hi all, I want to calculate error in ppm from my Hsqc data. My spectrometer yields X1axis, Y1Axis, DX1, DY1, X1ppm, and ...
Posted: ick lad 1 / Updated: Arkadiusz Leniak 213 Mar 17 at 02:10

Why NMR can deliver angstrom reolution structures.

1 0 98
answers votes views
How can NMR operating at radiofrequency wavelengths deliver angstrom resolution? For example X-ray crystallography opera...
Posted: Anon 1 / Updated: Arkadiusz Leniak 213 Mar 17 at 01:10

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

3 0 560
answers votes views
Hi, I have encountered a strange behaviour of some signals (they are absent) in a series of polycyclic aromatic carboxi...
Posted: Arkadiusz Leniak 213 / Updated: zablociak 21 Mar 23 at 12:11
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