| 10 |
1 |
16909 |
| answers |
votes |
views |
I'm using a Bruker 300 NMR, equipped with a BBO probe, to do Boron 11 NMR. But I got no signal no matter what pulse leng...
| 9 |
1 |
12550 |
| answers |
votes |
views |
Hello,
I'm currently processing a large amount of T1 and T2 spectra in NMRDraw. I've been looking for a way to copy my ...
| 9 |
1 |
8k |
| answers |
votes |
views |
Why are some Dosy spectra 1d so distorted (like the one below)?. How can this be overcome?
...
| 7 |
2 |
11053 |
| answers |
votes |
views |
Hello,
Here are Bruker hmbc pulse programs (produced by ls *hmbc*):
hmbcacbigpl2ndqf hmbcacgplpqf hmbcetgpl2nd hm...
| 7 |
1 |
11865 |
| answers |
votes |
views |
Hello everybody. We have an AVANCE 500 MHz bruker instrument. Unfortunately, our amplifier has been weakened and I can n...
Posted:
He
21
/ Updated:
jkurutz
131
Jul 19 '12 at 06:24
| 6 |
0 |
21545 |
| answers |
votes |
views |
I need to give NMR data to someone who has only spreadsheet software to prepare plots of data and she also wants to fit ...
| 6 |
1 |
9k |
| answers |
votes |
views |
Hello people,
For my internship I am attempting to fully automate monomer composition analysis on Bruker TOPSPIN 2.0 us...
| 6 |
3 |
20375 |
| answers |
votes |
views |
Why the chemical shift range of 1H nmr is ~20 ppm wheras for 13C nmr it is ~230 ppm?
...
| 6 |
1 |
9k |
| answers |
votes |
views |
I have determined the structure of a 110 residues protein(11kDa) which is known to interact with a 15mer peptide. Now I ...
| 6 |
1 |
20829 |
| answers |
votes |
views |
To experienced Bruker users:
I often get the following message in ICON-NMR while running HSQC/HMQC:
"zg: DRU warning: n ...
| 6 |
1 |
7k |
| answers |
votes |
views |
Dear NMR Wikiers !
I encountering problem with assignment of 12 kd protein ! i assigend already 50 percent of backbone ...
| 6 |
0 |
14460 |
| answers |
votes |
views |
HI
ON bruker av-500 topshim giving worse line shape spectra for e.g it is getting the right keys but in
wrong direction...
| 6 |
0 |
21871 |
| 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...
| 5 |
1 |
10231 |
| answers |
votes |
views |
I'm trying to come up with reasonable tests of probe performance for all channels by simulating conditions at which arci...
| 5 |
0 |
17318 |
| answers |
votes |
views |
Hello, I would like to find detailed technical info on the binary data storage formats for Varian and Bruker. Could anyo...
| 5 |
1 |
29222 |
| answers |
votes |
views |
Does anyone know something about paramagnetic relaxation enhancement (PRE)? i would like to try this method on my cellul...
| 5 |
1 |
9k |
| answers |
votes |
views |
Dear NMR wiki ers
Iam working on protein family which can form dimers (total 20kd size )
using 25mM TRIS , 100 mM KCL...
Updated:
sri
71
Aug 25 '11 at 00:09
| 5 |
0 |
8k |
| answers |
votes |
views |
Hello
can some body help me in understanding the line broadening effect in NMR? I am working with protein and small mol...
| 5 |
1 |
7k |
| answers |
votes |
views |
Dear colleagues!
13C-1H J-couplings are essential in some areas of molecule structure research.
I discovered modern met...
Updated:
VVK
61
Nov 29 '11 at 12:37
| 5 |
0 |
5k |
| answers |
votes |
views |
Hi all:) I apologize for my simple ( or well, stupid) question: I was wondering if it is possible to run a 2D 13C19F exp...
Posted:
Ala M.
1
/ Updated:
VVK
61
Nov 27 '12 at 12:24
| 5 |
2 |
7k |
| answers |
votes |
views |
Hi,
I have synthesized coproporphyrin II tetramethyl ester and taken a 1H NMR in CDCl3:
http://illumina-chemie.de/uplo...
| 5 |
0 |
4k |
| answers |
votes |
views |
Hi,
We have a Bruker MAS probe (4mm, late 90s vintage, widebore) that reports a spin speed twice what it is actually doi...
| 5 |
0 |
4k |
| answers |
votes |
views |
Hi, I have question for you who have Bruker instruments! On 300 MHz I worked on selective noesy pulse sequence (selnogp)...
| 5 |
0 |
10371 |
| answers |
votes |
views |
Hello, could you tell me which HSQC and E-HSQC program are recommendable ?
These are Bruker HSQC pulse programs:
hsqcp...
| 5 |
0 |
3k |
| answers |
votes |
views |
Hello,
I am running Dosy experiment using ledbpgp2s sequence. I am getting sort of signal distortions. I tried the solu...
| 5 |
0 |
8k |
| answers |
votes |
views |
Hello people,
Does anyone know of any free NMR software (no trials, I can't stand it anymore) that is robust enough to ...
| 5 |
0 |
7k |
| answers |
votes |
views |
Since my university does not have a professional spectroscopist, I am a new learner of NMR, and I really have no one els...
Posted:
Elvis
1
/ Updated:
RuudA
11
Nov 02 '14 at 07:22
| 4 |
2 |
8k |
| answers |
votes |
views |
I use a varian inova 500 NMR machine. it has vnmrj 2.1B software. An auto-x pfg 500 Mhz probe and auto tuning unit also....
| 4 |
2 |
10219 |
| answers |
votes |
views |
Are there any modern programs (preferably freeware) that will simulate line broadening in the presence of exchange. Some...
| 4 |
1 |
6k |
| answers |
votes |
views |
I would like to run some solid state 14N NMR spectra, but I have never run experiment on integer spins in the solid stat...
| 4 |
1 |
26199 |
| answers |
votes |
views |
Hi and thanks for answering my prev. questions! Decided to ask this one:
How can I convert fid data (ser file) to plain...
| 4 |
1 |
25655 |
| 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...
| 4 |
1 |
16801 |
| answers |
votes |
views |
I have a rather simple question - What is the acceptable difference in coupling constants between the anisotropic and is...
| 4 |
1 |
5k |
| answers |
votes |
views |
I`m new on Pipe. I was using the values from pipe to estimate R1 and R2. Because lots of signal in the HSQC were crowded...
Updated:
Marcos
21
Jul 02 '10 at 10:55
| 4 |
3 |
8k |
| answers |
votes |
views |
Dear all,
I was wondering whether someone managed to install the VnmrJ software of Varian (2.2 D) on a Ubuntu based sys...
| 4 |
1 |
22972 |
| answers |
votes |
views |
Hi
I have recently moved to a lab which has a varian magnet, in the past I have only used brukers. The people here use ...
| 4 |
1 |
5k |
| answers |
votes |
views |
What defines the area of effect of nuclear magnetic resonance?
Is it the magnetic field? the frequency? Or just the diam...
| 4 |
1 |
12022 |
| answers |
votes |
views |
Hello, I need to set up aquisition parameters for an echo solid sequence on bruker. In order to analyse deuteraed sample...
| 4 |
1 |
8k |
| answers |
votes |
views |
Hello all,
I have spent approximately 4 hours trying to analyze an H NMR consisting of two doublets of doublets (pe...
| 4 |
1 |
6k |
| answers |
votes |
views |
HELLO NMR WIKI ERS
Could you please give information about the standred reference values of LINEAR PRIDICTION FORWRAD...
Updated:
sri
71
May 24 '11 at 02:45
| 4 |
1 |
6k |
| answers |
votes |
views |
Dear sirs and madams,
I have a natural product whose two carbon resoances are appearing at 46 and 56 ppm but theirs prot...
| 4 |
0 |
19819 |
| answers |
votes |
views |
Dear NMR wikiers
I am assigning 95 aminoacid residue protein . I can see 76 cross peaks in N H HSQC on 700 vnmr cryob ...
Updated:
sri
71
Aug 25 '11 at 00:05
| 4 |
0 |
8k |
| answers |
votes |
views |
Dear Friends,
I've recently encountered a problem with gradient shimming that has never happened to me before. I can't ...
| 4 |
1 |
5k |
| answers |
votes |
views |
Hi guys, sorry to be really cheeky and sign up simply to ask for help, but here goes.
I've done a simple Grignard addit...
| 4 |
0 |
9k |
| answers |
votes |
views |
Is it possible to generate a spectrum from BMRB chemical shifts?
I want to generate a spectrum to use as a reference fo...
| 4 |
1 |
11699 |
| answers |
votes |
views |
In a normal fully decoupled carbon experiment, can you integrate equivalent carbons? In other words , do all CH3's get ...
| 4 |
1 |
5k |
| answers |
votes |
views |
Hello, dear NMR-comrades!
I work on Bruker AVANCE II 400 MHz NMR-spectrometer and today I had some troubles with wobbi...
| 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...
| 4 |
0 |
8k |
| answers |
votes |
views |
Recently the TOPSPIN always popup a windows "L-TRX board overtemperature error occurs"
Then the lock is lost, and the lo...
Updated:
Roja
26
Jan 07 '13 at 15:58
| 4 |
0 |
9k |
| answers |
votes |
views |
Dear all,
how do you determine the minimum distance between
two high-field magnets?
Is it that their 5-gauss lines mus...
