Unanswered questions

Best way to make a 2D figure

2 0 6k
answers votes views
Hi all, I need to make a figure containing a 2D NMR spectrum for a paper. Has anyone figured out a good way to do this...
Posted: wilsonmv 1 / Updated: John Hollerton 96 Dec 09 '13 at 09:44

How to recover from quenched or dried magnet?

4 0 22963
answers votes views
We have got a donated AQR/p with Spectrospin 300 magnet and there is no helium inside. It was sitting in the warehouse f...
Posted: agoo 1 / Updated: Jerry Hirschinger 199 Oct 04 '13 at 09:58

Macro available that can determine the standard deviation of the spectral noise for a many similar 2D spectra

0 0 2k
answers votes views
Hi ! I need a macro that can determine the standard deviation of the spectral noise for a many similar 2D spectra. I h...
Posted: Troels E. Linnet 1 Sep 16 '13 at 05:13

1D NOESY with selective excitation and water suppression

2 0 11057
answers votes views
Hi, I am trying to collect 1D NOESY spectrum of a small protein in 90% H2O with selective excitation so I could follow ...
Posted: slawojek 1 / Updated: kyleabeauchamp 1 Mar 06 '14 at 15:37

topshim error: wait for event... timeout after 20 sec

2 0 6k
answers votes views
I use a Bruker Avance 400 III, when using topshim command the following error appear: 'wait for event-acquisition runnin...
Posted: smithnany 1 / Updated: ehaapani 1 Oct 07 '13 at 22:13

simulation software for small molecules, liquids

2 0 4k
answers votes views
Hi all, i'd like to hear some experiences you folks had on this theme. I wanna by a program for that. Just googling for...
Posted: fid 139 / Updated: ehaapani 1 Oct 07 '13 at 01:11

g03defaults in gaussian 09

0 0 3k
answers votes views
Hi, I am using gaussian 09 to simulate proton NMR and I am comparing my results with the ones published here: Atieh, Z...
Posted: LFF 1 Aug 16 '13 at 04:09

proton decoupled of 14N

2 0 5k
answers votes views
Hi everyone, Has someone tried to run proton decoupled of 14N? How long should be the 14N decoupling pulse? I had some ...
Posted: alina 1 / Updated: Tony Bielecki 131 Aug 09 '13 at 05:55

Gradient settings in an experiment

2 0 7k
answers votes views
how do we decide on power levels and lengths of purge gradients in a new experiment?...As for coherence selection, relat...
Updated: nmr2rmn 3 Aug 09 '13 at 14:58

2D 103Rh frequency wrong

1 0 4k
answers votes views
I have run a 1H-103Rh HMQC on [Rh(acac)(cod)] and found the chemical shift of the 103Rh to be -7023 ppm. The frequency ...
Updated: Linette Bennie 1 Aug 13 '13 at 05:29

Help solving a spectrum!

2 0 3k
answers votes views
Can someone please help me solve an nmr problem? I've tried a lot but can't get it. Please post ur email and i'll send y...
Posted: Lyra 1 / Updated: vaclavrimal 11 Aug 08 '13 at 04:44

The echo trajectory for spin 3/2

0 1 1k
answers votes views
For spin ½ The echo trajectory M(t ) fits well to the function : M (t) =M0 * EXP (-t/T) * COS (pi * j * t) (t: sp...
Updated: ghNMR 11 Jul 26 '13 at 08:36

S/N increases then decreases in 2D HMBC-type experiment

2 0 4k
answers votes views
Hello All Does anyone have any ideas on why the S/N would increase and then degrade during an HMBC-style experiment? I...
Posted: Craig 41 / Updated: Scott Robson 156 Aug 02 '13 at 08:42

Reset F1 axis (Bruker)

1 0 4k
answers votes views
Hi all, I have a 2D Bruker dataset that took a while to acquire, so I'd rather not simply repeat it. However, it seems...
Updated: wilsonmv 1 Aug 11 '13 at 22:12

spinner .... stuck

1 0 13347
answers votes views
Dear Colleagues: I've varian nmr 300, and i've a problem with the spinner that doesn't eject, it stucked like it is froz...
Posted: Eyad omari 1 / Updated: Jerry Hirschinger 199 Jul 22 '13 at 08:35

Processing varian 2D data done with a 3D pulse sequence

2 0 4k
answers votes views
Hello all, I am working with a varian spectrometer and did a 2D experiment with a 3D pulse sequence and I need help with...
Updated: PBjang 1 Jul 17 '13 at 01:39

NMR Vs X ray crystal data not matching each other

2 0 4k
answers votes views
I had a very weird situation where my compound shows double bond between carbons in NMR but shows it as single bond in x...
Posted: shanku 1 / Updated: John Hollerton 96 Dec 09 '13 at 09:57

Strange peak distortions but that of water

2 0 5k
answers votes views
Hy everyone, I'm having a strange problem when reading the NMR spectrum of a small aromatic molecule in deuterium oxide:...
Updated: Ruggero 3 Jul 15 '13 at 03:22

How to interprete TALOS predictions

0 1 1k
answers votes views
Dear all, Although my first question, remained unanswered, I still stay optimistic hoping this one will find its way t...
Posted: Yar 13 Jul 02 '13 at 08:49

35Cl NMR spectra

3 0 7k
answers votes views
Hi, I am new here! I am working on Bruker 600 MHz over 10 years, but now I have problem to get 35Cl NMR spectrum. I use...
Posted: gugica 1 / Updated: Tony Bielecki 131 Jul 10 '13 at 07:32

The FID in the F1 dimension is not fully sampled – it is cut off.

0 0 6k
answers votes views
HELLO all nmr wikier, I am facing problem in hsqc experiment on bruker machine using pulse prog hsqcetgpsi Normally the ...
Posted: feroon 21 Jun 27 '13 at 10:09

How to get off resonance ligand integral in STD experiment

0 0 2k
answers votes views
Hello I am using satxfer1D experiment on varian unity plus 500 MHz spectrometer and vnmr (not vnmrJ!) software. I would...
Posted: Kate 1 Jun 26 '13 at 04:59

counting unambiguous noe assignments

1 0 3k
answers votes views
Dear everyone, I was wondering how can I know the number of unambiguous noe assignments both after manual assignment an...
Posted: Yar 13 / Updated: eiso 31 Jul 10 '13 at 04:24

FMR on EPR

0 0 2k
answers votes views
Hi, I need to run FMR (ferromagnetic resonance) on Bruker x-band CW EPR spectrometer. I know it can be done, but I would...
Posted: nmrman 1 Jun 14 '13 at 07:52

2-Methoxybenzaldehyde

2 0 6k
answers votes views
Hey everyone, I've started practicing reading NMR again after having not done so for years, and I'm getting caught up o...
Posted: John Xavier 1 / Updated: Pete Gierth 401 Jun 17 '13 at 12:06

!3C NMR of Peptide

0 0 2k
answers votes views
Hi, thank you for reading my question. I am a novice at NMR, I apologize in advance if my question appears naive. I am ...
Posted: pjb 1 Jun 11 '13 at 00:32

ROESY build-up curve - simulation software

0 0 2k
answers votes views
Hello, I have some users interested in measuring a ROESY build-up curve for their samples (NOESY does not work due to m...
Posted: sararah 11 Jun 10 '13 at 08:30

How to start experiment at particular row

1 0 3k
answers votes views
I was running a 3D 15N edit NOESY (on a Bruker 600) and it was inadvertently stopped. I would like to restart the experi...
Posted: Lola Brown 1 / Updated: Pete Gierth 401 Jun 13 '13 at 11:05

csrosetta server application

0 0 1k
answers votes views
I upload my protein on csrosetta server for generating structures. I have provided TALOS data file. Its already two days...
Posted: anup 1 Jun 04 '13 at 06:09

Not possible to modify the wiki?

0 0 1k
answers votes views
Hi. I receive this error, when I try to modify the wiki. Fatal error: Cannot redeclare class MWNamespace in /var/www/nm...
Posted: Troels E. Linnet 1 / Updated: sdriegel 1 Jul 04 '13 at 12:45
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