Unanswered questions

vnmrj spectra in mnova

3 0 11234
answers votes views
I have been trying to open varian vnmrj spectra in mnova software to workup the spectra, but I keep getting error messag...
Ulrich Haunz 210 Aug 13 '14 at 05:09

Helium recovery system

2 1 7k
answers votes views
How do I configure a helium recovery system that won't perturb my magnet's stability? I'm concerned that just hooking ...
Jerry Hirschinger 199 Jul 23 '14 at 10:45

Translating Varian to Bruker, "phase=1,2"

1 0 6k
answers votes views
I'm trying to translate a Varian pulse sequence into a Bruker pulse program. For the Varian Inova sequence with the par...
vltr 1 Jul 14 '14 at 13:17

simple stddiff parameters

1 0 8k
answers votes views
Hi, I'm working on a bruker avance 400 spectrometer and using topspin version 1.3 software. I want to get a std-nmr (sat...
nfromdicle 1 Jul 12 '14 at 05:56

167ppm CH of a indole

1 0 8k
answers votes views
I have a proton value at 8.07ppm and carbon 167ppm correlate to a CH proton I think it's a proton at 3 position of a ind...
VVK 61 Jul 08 '14 at 04:34

Beginners question: checking probe and multinulear ability in Bruker machines

2 1 14086
answers votes views
Hi All, This may be a daft question, but how do I go about identifying the probe in our NMR machine, and hence whether ...
Kirk Marat 711 Jul 04 '14 at 08:51

INADEQUATE EXPERIMENT WITH BBI PROBE?

4 0 5k
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Is it possible to obtain this experiment with a BBI 400 MHz probe? All the tries I have made they have been unsuccessful...
Arkadiusz Leniak 238 Jun 26 '14 at 19:35

Software to simulate pulse sequences

1 0 3k
answers votes views
Hi, I'm interested in software for windows or linux that simulate the effect of pulses, delay AND gradients using the pr...
Bharathwaj 112 Jun 22 '14 at 08:15

Topspin3.2 deconvolution, border peaks are cutted off

1 0 5k
answers votes views
Greetings, I've some annoying issue with Topspin and deconvolution. No matter what I'm trying to do, border peaks are a...
Ulrich Haunz 210 Jun 16 '14 at 07:48

19F full range homodecoupling

3 0 7k
answers votes views
Greetings, this is my first question in this wiki :) I wonder if there's possibility to obtain full homo decoupled spe...
Arkadiusz Leniak 238 Jun 16 '14 at 00:14

Topspin 3.2.1 - 1D TOCSY in with differing mixing times

4 1 8k
answers votes views
Hello, I work a lot with compounds containing numerous carbohydrate groups. Therefore I use frequently 1D-TOCSY experim...
Alain Pagelot 1 Jun 10 '14 at 02:38

Processing of spectra in Bruker Topspin

0 0 3k
answers votes views
Can anyone suggest important parameters need to be optimized for 3DNMR data processing and correct phasing of cross pea...
Arun Gupta 11 Jun 08 '14 at 03:04

TopSpin: 3D experiment with vc list

2 0 9k
answers votes views
Question about how to make a 3D experiment in which one of the dimensions is a variable counter (vc) list. I'm using Top...
DaanMR 1 Jun 05 '14 at 08:26

Topspin 3.2.5 queue experiment

3 0 7k
answers votes views
Does anyone know how to make Topspin to queue experiments? In my recently installed Topspin somehow the queue function i...
Arkadiusz Leniak 238 Jun 05 '14 at 05:07

real part or magnitude?

2 0 3k
answers votes views
Hello, I'm a NMR newbie working on Bruker 300MHz and my problem may sound silly to some of you, but I don't want to make...
Clemens Anklin 416 Jun 04 '14 at 19:40

hard pulse frequency

0 0 1k
answers votes views
Hello, anyone knows how to change the frequency from one hard pulse to another in a simple 2 pulses sequence at the mini...
German Farrher 1 Jun 02 '14 at 07:21

Are there ways to explain magnetic-field dependent chemical shift?

4 1 24228
answers votes views
Hi everyone, I was wondering whether anyone could help me to explain why the chemical shifts in my proton and carbon NM...
Arkadiusz Leniak 238 May 31 '14 at 15:46

Which Bruker HMBC program do you use?

7 2 10526
answers votes views
Hello, Here are Bruker hmbc pulse programs (produced by ls *hmbc*): hmbcacbigpl2ndqf hmbcacgplpqf hmbcetgpl2nd hm...
Arkadiusz Leniak 238 May 31 '14 at 15:21

h2bc experiment

2 1 6k
answers votes views
Hello nmr wikier I want to run pulprog h2bcetgpl3 on bruker instrument using adiabiatic shape pulse crp60comp.4 I determ...
zablociak 21 May 30 '14 at 13:21

Chemical shift

1 0 3k
answers votes views
Hi there, I am seeing four signals at equal height between -0.6 and 0.5 PPM of a 1H NMR sample in dmso-d6. The reaction ...
Eugene DeRose 41 May 23 '14 at 13:02

Amplifier problem

4 0 8k
answers votes views
Hi.We have a 500 MHz AVANCE-DRX spectrometer and I have a question about it .How we can understand that the amplifier ha...
Nonai 1 May 22 '14 at 00:45

simulating 2D-NOESY spectrum from structural model

1 0 6k
answers votes views
Hello everyone Our research group planning to study metal-ion induced structural transition using NMR. We are new to thi...
Thomas 1 May 19 '14 at 13:03

bruker s1 sortier

0 0 4k
answers votes views
Hello, I can't get results, as unknown error occures data/results.csv I'd restarted spectrometr several time, but the s...
Jerry Hirschinger 199 May 06 '14 at 07:37

Capillary vs bulk solvent chemical shift difference

1 0 7k
answers votes views
I have prepared a sealed DMSO-d6 capillary tube (3mmOD) to use as an internal reference for an undergraduate prac using ...
SankarampadiAravamudhan 91 Apr 25 '14 at 16:59

extract error bars from sparky S/N or deviation or both

0 0 2k
answers votes views
Dear NMR wiki community, I have recorded 24 sequential 15N HSQC spectra, in an H/D exchange experiment and now, I am ha...
Maryam 1 Apr 14 '14 at 12:57

Signal intensity affected by long-range proton coupling?

1 0 4k
answers votes views
Hi, I'm looking for a theoretical explanation for the effect of long-range (proton) couplings on the signal intensity of...
doodlebugs 1 Apr 14 '14 at 06:45

195Pt experiment setup help needed

4 0 8k
answers votes views
We just bought a new console (with Topspin 3.2)for our Bruker 400 and noticed that not all experiments that we previousl...
Kirk Marat 711 Apr 04 '14 at 13:48

Very simple NMR question wrt resonance frequency calculation

6 0 20894
answers votes views
Hi guys, I'm stuck in attempting this question and need some help understanding how to answer it. Q.) The chemical shif...
SankarampadiAravamudhan 91 Apr 02 '14 at 00:25

Diagnosing 1D selective NOE issues

4 0 8k
answers votes views
I'm trying to diagnose a possible issue performing a selective 1D NOE (selnogp) on a Bruker Avance II 500Mhz with TopSpi...
kyleabeauchamp 1 Mar 22 '14 at 09:48

VNMRJ Macro - wait until completion of first experiment

1 0 3k
answers votes views
I am relatively new to VNMRJ, and am trying to write a macro that executes an array in experiment 1, then, once finished...
Bharathwaj 112 Mar 14 '14 at 07:43
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