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1 |
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Hello, I am looking for some 15N/13C-filtered 2D NOESY and 2D TOCSY pulse sequences to run on a Varian 600. Does anyone ...
| 2 |
1 |
6k |
| answers |
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views |
Hi guys :
Is there a public database of sample Bruker/Varian NMR spectra ? I want to look at a sample 4D SER file ......
| 4 |
1 |
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| answers |
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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
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0 |
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Here is a TOCSY recorded with States-TPPI method on a sample in 10/90 D2O/H2O.
States-TPPI is expected to move the "ho...
| 1 |
0 |
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| answers |
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Hello, I've been trying to create a gradient shim map (shown in figure below) on a standard 5 mM tube on D2O (10% D2O/H2...
| 1 |
1 |
8k |
| answers |
votes |
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Hi guys : I have several spectra, and wanted to test out what data I do , and do not need, in order to effectively get a...
Posted:
j
131
/ Updated:
Bharathwaj
112
Jun 28 '10 at 19:43
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1 |
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| answers |
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For solid state NMR:
What can cause the line position shift depending on the spin rate?
...
| 1 |
0 |
10989 |
| answers |
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views |
Has any one seen this type of error before?
tcu error:
Error in 'hsqcrexetf3gpsi3d.t22.d':
line 92 (pc=50, ld=2300):
- ...
| 3 |
1 |
17390 |
| answers |
votes |
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Here our 1H amplifier of NMR spectrometer is damaged twice for long time or high power RF irradiation.
Why the duty cyc...
| 1 |
2 |
24316 |
| answers |
votes |
views |
When positive and negative coupling constants occur in NMR? and why? What are the spin states of the nuclei and the bond...
| 1 |
0 |
5k |
| answers |
votes |
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Hi, does anyone ever get adamantane from the rotor sublimate and condense outside it?
A student here found a suspiciou...
| 0 |
0 |
3k |
| answers |
votes |
views |
Hi, I need to plot a 2D spectrum so that it is 20cm wide (and tall) in sparky.
Using pt command I can set up ppm/cm acc...
| 2 |
2 |
8k |
| answers |
votes |
views |
Hi guys : Im trying to make a procpar for an FID, I know most of the parameters of importance, and have the schema of th...
| 2 |
1 |
6k |
| answers |
votes |
views |
I'm trying to analyze my RDC data using Module. But I'm using a crystal structure instead of NMR. Can somebody pls advis...
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2 |
17193 |
| answers |
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Hi guys :
This post is related to : qa.nmrwiki.org/question/83/where-to-find-technical-information-on-varian-and-bruke...
Updated:
j
131
May 25 '10 at 11:45
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1 |
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| answers |
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I have collected over 370 NOE restraints for a 38 AA peptide. Because I have less than 10 restraints per residue, I am ...
| 0 |
1 |
5k |
| answers |
votes |
views |
Hello,
When I process 3d data on topspin with the ft3d command, I get the three-dimensional spectra, but the chemical sh...
| 1 |
0 |
6k |
| answers |
votes |
views |
Hello, I know I've done this before but did not write the details down.
How to make vnmr save postscript files? Normall...
| 1 |
0 |
5k |
| answers |
votes |
views |
Hello,
I've noticed recently that our EPR spectrometer (Bruker EMX500) has a negative offset on the baseline and it bec...
| 1 |
1 |
5k |
| answers |
votes |
views |
About chiral centre
...
| 3 |
1 |
17140 |
| answers |
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views |
We have an olefin, R1-CH=CH-R2 where proton resonances overlap. Is there a way to determine olefin isomer - E (trans) vs...
| 2 |
0 |
6k |
| answers |
votes |
views |
Hello, I've been asked to solve a problem of assigning a positon of deuteration on a molecule, where structure of the de...
| 2 |
0 |
5k |
| answers |
votes |
views |
Hello, I need to help solids lab at our UCI site - they have a custom probe and need to orient it properly in order to e...
| 3 |
1 |
10419 |
| answers |
votes |
views |
Is it possible to use NMR for limit testing of trace impurities in pharmaceutical drug substances? What are the conside...
| 1 |
0 |
6k |
| answers |
votes |
views |
I had two problems like this one recently:
have protein (in solution) of known general structure
resonance assignments...
| 2 |
2 |
5k |
| answers |
votes |
views |
I will really need your help. I am chemist working in the oil buisness and I am interesting is it possible to analyze pr...
| 1 |
0 |
9k |
| answers |
votes |
views |
Hello, I wanted to ask this in a while. Finally a sample arrived that shows this behavior and I made a screenshot (below...
| 1 |
1 |
9k |
| answers |
votes |
views |
Hello there.
After running an 1H-NMR experiment I observed the acetic acid-d4 solvent peaks at 11.54 and 21.16 ppm (off...
| 1 |
1 |
5k |
| answers |
votes |
views |
This cis-cyclohexyl derivative with two big substitutes (A and B) may has two conformational isomers, 1 and 2. How to ...
| 2 |
1 |
24413 |
| answers |
votes |
views |
Hello. What is the best definition to the state of "saturation" in the context of NMR?
No phase coherence in the transv...
