Unanswered questions

Zero filling

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answers votes views
My group seeks highly accurate 3J 1H-1H coupling constants. After an extensive literature search, I see conflicting sta...
Steven Graham 1 Nov 27 at 07:46

Dropped cryoshims on magnet

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answers votes views
I encountered a problem with our 600 MHz NMR instrument. When acquiring the line shape sample, while spinning, the chlo...
Linette Bennie 1 Sep 17 at 01:46

can I have Topspin/XWIN-NMR run a paralell cmd on every `zg`?

0 0 1k
answers votes views
Hi, I wanna Brukers TopSpin/XWIN-NMR to log the start and end times of every experiment. With this information I can ...
oxy 31 Aug 28 at 01:42

How to know when a measurement finished?

0 0 380
answers votes views
Dear all, I am writing an script to calculate experiment times on Bruker spectrometers (doing accounting on old machine...
oxy 31 Aug 26 at 05:06

Bruker pulse program for PENDANT experiment

0 0 2k
answers votes views
Hi there, I am looking for the pulse program for the PENDANT experiment, for a Bruker Avance III spectrometer, has anyon...
AnneBaudouin 1 Aug 13 '18 at 07:05

Future Actions disabled in VnmrJ 3.2

0 0 916
answers votes views
Does anyone notice that the Future actions (wbs,wnt,et al) won't work in VnmrJ 3.2? In previous version VnmrJ, the wbs/w...
Zhang 1 Jun 27 '18 at 03:30

dipolar coupling in nmr

1 0 2k
answers votes views
how can i understand the effect of dipolar coupling in cp spectrum? ...
Zhang 1 Jun 27 '18 at 03:23

Lock Error Bruker Ascend 600

2 0 5k
answers votes views
Hi there, We had a short power failure yesterday and since my boss is in Ireland and our other so called NMR guru does...
aaaeee 1 Apr 12 '18 at 12:50

Lock problem on Bruker Avance 600 MHz

1 0 3k
answers votes views
After a energy failure (cryoprobe started to warm up) I cannot establish lock (similar to http://qa.nmrwiki.org/question...
aaaeee 1 Apr 12 '18 at 12:47

reconstruction/ run.local

0 0 1k
answers votes views
In the reconstruction part of NMRPipe processing, when I run the command './run.local' the message below appears in the ...
julianima 1 Apr 12 '18 at 11:56

reconstruction/ run.local

0 0 1k
answers votes views
In the reconstruction part of NMRPipe processing, when I run the command './run.local' the message below appears in the ...
julianima 1 Apr 12 '18 at 11:52

LiF solid state nmr

0 0 1k
answers votes views
Does anyone know any literature on F19 solid state nmr studies of lithium fluoride LiF? Either in single crystal or powd...
forza 1 Mar 22 '18 at 08:34

Tune and decoupling problems Bruker Avance 300

0 0 7k
answers votes views
Hello everyone, I had to change a BVT3300 module in a Bruker Avance 300 console today. Everytihing went fine and the mo...
gael58 1 Feb 22 '18 at 07:45

spinning problem on varian probe

2 0 6k
answers votes views
We are using a Varian300autoSW probe, which had previously worked well with no problems spinning samples. We had switche...
Miguel 1 Feb 09 '18 at 06:48

HSQC not working on BBI and NEO console

0 0 4k
answers votes views
Recently we exchanged our old consoles (Avance III and DRX) with the Bruker’s new NEO series. After the installation of ...
alina 1 Jan 29 '18 at 05:52

15N-NMR chemical shifts comparison

0 0 4k
answers votes views
I have a set of molecules with similar structure. The 1H-15N HMBC spectra of two of these molecules were taken in DMSO-d...
Bhanu 1 Jan 15 '18 at 10:45

shape pulse power

0 0 881
answers votes views
can shape pulse power be in negative for example -1.98 for crp60comp.4 in dept-135 nmr experiment. ...
feroon 21 Dec 20 '17 at 09:51

13C-NMR with 31P coupling

0 0 5k
answers votes views
Hello, I am the first time confronted with a 13C-NMR, in which a coupling between the 13C and 31-P cores takes place. I ...
Sabine Sun 1 Oct 21 '17 at 13:32

19F or 31P dosy

0 0 7k
answers votes views
Hi, I have run 19F and 31P dosy using ledbpgg2s program from Bruker, I obtain good decreasing curves as expected, with u...
AnneBaudouin 1 Oct 17 '17 at 01:18

help understanding varian command

2 0 1k
answers votes views
can someone4 explain how the tssub command works. For example, for phi4[1] = {1} ; settable(t4, 1, phi4) ; what does...
Zhang 1 Sep 27 '17 at 03:23

NMR INTENSITY AND CONTACT TIME CP

1 0 5k
answers votes views
What is the shape of the graph between intensity and contact time for different spin rate in CP? ...
Zhang 1 Sep 25 '17 at 21:36

lock, gradient shimming and acquisition in vnmrj

0 0 5k
answers votes views
Dear all, I want to write a macro that run lock, gradient shimming and acquisition in VnmrJ. I tried two ways, but fail...
Zhang 1 Sep 24 '17 at 18:43

NMR saturation

0 0 6k
answers votes views
My doubts are about NMR saturation. Saturation is caused by a continued impulse and cause the equalization in spin popol...
Youlsea 1 Aug 29 '17 at 08:11

Nuclei with quadrupolar moment, quadrupolar interaction, 23Na MRI

0 0 6k
answers votes views
Hello! I'd like to understand the application of quadrupolar effects in MRI. I read different materials on this topic b...
Philipp Barrett 1 Apr 01 '17 at 13:01

ROESY NMR in Bruker

1 0 3k
answers votes views
Since ROESY uses a cw spin-lock, is it safe to set up a mixing time of 500ms? If I want a roesy spin-lock strength of 2....
Pete Gierth 401 Mar 30 '17 at 03:32

cp nmr graph for intensity vs contact time

0 0 2k
answers votes views
i got a sinusoidal graph for intensity vs contact time graph in CP.how can explain the theory behind this? ...
sreenath K 1 Mar 21 '17 at 22:06

Why SR(F1) in hcchtocsy and h(cc)(co)nh?

0 0 3k
answers votes views
Hi,All, I wonder if somebody can tell me why in these two experiments( also hbha(co)nh,I think) in Bruker(not sure if yo...
blue 1 Feb 28 '17 at 08:37

2D-STD experiment

0 0 2k
answers votes views
Can anybody provide parameter file for running 2 D STD 1H 13C HSQC on bruker 600 MHz instrument. ...
ASMA AZIEZ 1 Feb 24 '17 at 23:28

interleaved acquisitionon Bruker NMR

2 0 3k
answers votes views
Our group just transfered from Varian to Bruker NMR, and we have a problem. Since my sample is unstable, when thereis a ...
Debashish Sahu 1 Feb 16 '17 at 14:27

eightfold suppression of water and ethanol

0 0 3k
answers votes views
Hi, I'm trying to perform an NOESYGPPS 1D 1H NMR experiment to suppress water and the ethanol signals in a wine sample, ...
Calin Floare 1 Feb 06 '17 at 05:15
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