NMR resonance Lock

2 1 2k
answers votes views
I am running a varian gemini 300 on SUN microsystems with UNIX. I am trying to lock on my sample, and my lock is not sho...
Posted: MONOJON 11 / Updated: Jerry Hirschinger 189 Jun 16 '11 at 09:46

Methanol-d in chloroform-d

2 0 3k
answers votes views
Hi, This is a question related to the question I posted earlier titled "H NMR integration". I tried adding one drop of ...
Updated: Davis Chen 11 Jun 13 '11 at 20:39

Low resolution of pepitde samples

3 0 1k
answers votes views
Dear friends, I am now trying to record the NOESY spectrum of my 30 amino acids peptide on DRX600 with a TXI cryo probe...
Posted: Yun Wang 1 / Updated: Evgeny Fadeev 5571 Jun 07 '11 at 14:00

paramagnetic oxygen in solution NMR

2 1 4k
answers votes views
A student is running a kinetics experiment in a J-Young tube under 5-10 atm of oxygen, much like in this journal article...
Posted: sararah 11 / Updated: Alexander Marchione 21 Jun 09 '11 at 10:17

adiabatic decoupling

1 1 2k
answers votes views
Hi NMRwikiers, for measuring scalar couplings we use some HSQC pulse sequences modified for obtaining the coupling in F1...
Posted: ptrigomou 11 / Updated: ChemMJW 99 Jun 28 '11 at 12:50

software for 1D-2D spectra assignment for small molecules

2 1 2k
answers votes views
Please advice good software for 1D and 2D spectra assignment and structure elucidation, for small organic molecules. I'm...
Posted: VVK 61 / Updated: Evgeny Fadeev 5571 May 23 '11 at 10:54

Downfield carbon paired with a upfield proton

4 1 2k
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...
Posted: Jonnala Kotesh Kumar 11 / Updated: nvgramosa 11 Oct 08 '11 at 09:08

Best Relaxation delay 3D NMR

1 1 2k
answers votes views
Dear NMR WIKIers I prefer to measure best relaxation delay for 3D nmr experments by giving array ( like 0.5 , 0.6 , 0....
Updated: sri 71 May 24 '11 at 02:44

Aminoacid residue identification or assignment of protein from 3D NMR Experments

2 1 3k
answers votes views
Dear NMR Wiki'ers I am identifying aminoacid residues or assignment of protein from following 3D NMR experments HNCA...
Updated: sri 71 May 24 '11 at 02:45

H NMR integraton

3 1 4k
answers votes views
Dear all: I just synthesized a polymer. The integrations in the high-chemical-shift regime are consistent with theoretic...
Posted: Davis Chen 11 / Updated: sekhar Talluri 601 Jun 02 '11 at 13:33


Newest questions are shown first.


posts per page103050

powered by CNPROG