Unanswered questions

Distorted/antiphase signals when doing Dosy

3 0 167
answers votes views
Hello, I am running Dosy experiment using ledbpgp2s sequence. I am getting sort of signal distortions. I tried the solu...
Posted: Umayal Rakesh 1 / Updated: gravatar 73 Apr 23 at 12:02

31P-31P COSY

1 0 315
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

0 0 108
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?

1 0 180
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 238 Mar 17 at 02:10

Why NMR can deliver angstrom reolution structures.

1 0 176
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 238 Mar 17 at 01:10

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

3 0 805
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 238 / Updated: zablociak 21 Mar 23 at 12:11

reading Bruker phase data

1 0 154
answers votes views
Hi all, I'm having trouble reading the 2dseq file for a scan I ran. It should contain 2 slices of 66x50 voxels, repeate...
Updated: Nicholas E 11 Mar 13 at 10:53

Mechanism of chemical exchange between labile protons (OH, NH, SH)

1 0 191
answers votes views
Hello All Does anyone know of any good articles dealing with the mechanisms of labile proton exchange in non-aqueous so...
Posted: Craig Grimmer 41 / Updated: gravatar 73 Mar 09 at 02:28

Topshim error

2 0 268
answers votes views
HELLO all nmr wikier,I am facing problem in runing topshim on bruker 500Mhz using topspin 2.1 it finishes with error (fi...
Posted: feroon 21 / Updated: Jim Lin 1 Mar 31 at 06:19

noisy hmqc and hmbc spectra

2 0 274
answers votes views
Hey all! We've got a serious problem because with our new probe (5mm bbo bruker) the t1 noise in the heteronuclear corr...
Posted: apophis 1 / Updated: Pete Gierth 401 Feb 25 at 14:06
550

questions without an accepted answer

Newest questions are shown first.

Tags

× 68
× 22
× 15
× 14
× 11
× 10
× 9
× 9
× 8
× 7
× 6
× 5
× 4
× 4
× 3
× 2
× 2
× 1
× 1
× 1
× 1
× 1
× 1
× 1
posts per page103050

powered by CNPROG