Unanswered questions

Is there software to draw NMR pulse sequences?

1 1 8k
answers votes views
Hi, Is there a specific program to draw pulse sequences? (preferably in windows) ...
Evgeny Fadeev 5771 Jul 10 '10 at 09:39

How to determine E vz Z olefin isomer when proton resonances orverlap?

3 1 16680
answers votes views
We have an olefin, R1-CH=CH-R2 where proton resonances overlap. Is there a way to determine olefin isomer - E (trans) vs...
Cleber Barreto 73 Jul 10 '10 at 08:07

What does tcu error in bruker mean: ignored AQNEXT, busy FIFO is stopped?

1 0 9k
answers votes views
Has any one seen this type of error before? tcu error: Error in 'hsqcrexetf3gpsi3d.t22.d': line 92 (pc=50, ld=2300): - ...
Ilango 171 Jul 09 '10 at 11:45

Looking for sample spectra....

2 1 5k
answers votes views
Hi guys : Is there a public database of sample Bruker/Varian NMR spectra ? I want to look at a sample 4D SER file ......
Evgeny Fadeev 5771 Jul 07 '10 at 14:41

How does pipe estimates Haight and DHeight?

4 1 4k
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...
Marcos 21 Jul 02 '10 at 10:55

What is the minimum information required to calculate a structure with cyana?

1 1 8k
answers votes views
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...
Bharathwaj 112 Jun 28 '10 at 19:43

For the RDC analysis - how to tell when the sample is acceptable/useful?

4 1 16380
answers votes views
I have a rather simple question - What is the acceptable difference in coupling constants between the anisotropic and is...
Bharathwaj 112 Jun 22 '10 at 07:16

Chemical shift and spin rate

2 1 4k
answers votes views
For solid state NMR: What can cause the line position shift depending on the spin rate? ...
Evgeny Fadeev 5771 Jun 21 '10 at 19:12

What is the origin of positive and negative coupling constants in NMR?

1 2 23033
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...
sekhar Talluri 621 Jun 13 '10 at 05:47

NMRPipe: Why Varian States-TPPI NMR data is to be processed with -yMode Complex?

1 0 8k
answers votes views
Hello, I've started using Varian instrument at UCI two years ago and I use nmrPipe to process the data. This one thing ...
Clemens Anklin 416 Jun 06 '10 at 15:14
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