Organic chemistry: Proton NMR (nuclear magnetic resonance) spectroscopy problems This is a recording of a tutoring session, posted with the students' permission. These videos are offered on a "pay-what-you-like" basis. You can pay for the use of the videos at my website: www.freelance-teacher.com For a printable document containing the NMR table and problems discussed in this video series, go to my website. For a list of all the available video series, arranged in suggested viewing order, go to my website. For a playlist containing all the videos in this series, click here: www.youtube.com (1) Degrees of unsaturation (index of hydrogen deficiency). Survey of an NMR chemical shift table (2) Continued (3) A problem (4) Continued (5) Continued (6) A problem (7) Continued (8) Continued (9) Another problem (10) Continued (11) Another problem (12) Continued (13) Another problem (14) Continued (15) Another problem (16) Another problem (17) Continued (18) Another problem (19) Another problem (20) Continued tags: education college student university exam test educational study campus school
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NMR Detection of pH-Dependent Histidine–Water Proton Exchange Reveals the Conduction Mechanism of a Transmembrane Proton Channel
NMR Detection of pH-Dependent Histidine–Water Proton Exchange Reveals the Conduction Mechanism of a Transmembrane Proton Channel
Fanghao Hu, Klaus Schmidt-Rohr and Mei Hong
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja2081185/aop/images/medium/ja-2011-081185_0008.gif
Journal of the American Chemical Society
DOI: 10.1021/ja2081185
http://feeds.feedburner.com/~ff/acs/jacsat?d=yIl2AUoC8zA
http://feeds.feedburner.com/~r/acs/jacsat/~4/C3pPoB5_PR8
nmrlearner
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10-22-2011 10:16 AM
[NMR paper] Direct refinement against proton-proton dipolar couplings in NMR structure determinat
Direct refinement against proton-proton dipolar couplings in NMR structure determination of macromolecules.
Related Articles Direct refinement against proton-proton dipolar couplings in NMR structure determination of macromolecules.
J Magn Reson. 2000 Feb;142(2):393-6
Authors: Tjandra N, Marquardt J, Clore GM
The computational tools necessary for making use of (1)H-(1)H dipolar couplings in macromolecular structure refinement are presented. Potentials are described for direct refinement against (1)H-(1)H dipolar couplings of known sign as well...
nmrlearner
Journal club
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11-18-2010 09:15 PM
Mechanisms of proton conduction and gating in influenza m2 proton channels from solid
Mechanisms of proton conduction and gating in influenza m2 proton channels from solid-state NMR.
Related Articles Mechanisms of proton conduction and gating in influenza m2 proton channels from solid-state NMR.
Science. 2010 Oct 22;330(6003):505-8
Authors: Hu F, Luo W, Hong M
The M2 protein of influenza viruses forms an acid-activated tetrameric proton channel. We used solid-state nuclear magnetic resonance spectroscopy to determine the structure and functional dynamics of the pH-sensing and proton-selective histidine-37 in M2 bound to a...
nmrlearner
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10-23-2010 05:48 PM
Proton NMR problems (1)
Proton NMR problems (1)
http://i.ytimg.com/vi/HevDzIgrNFE/default.jpg
Proton NMR problems (1)
Organic chemistry: Proton NMR spectroscopy (nuclear magnetic resonance) problems This is a recording of a tutoring session, posted with the students' permission. These videos are offered on a "pay-what-you-like" basis. You can pay for the use of the videos at my website: www.freelance-teacher.com For a printable document containing the NMR table and problems discussed in this video series, go to my website. For a list of all the available video series, arranged in suggested viewing order,...
nmrlearner
NMR educational videos
0
08-18-2010 01:38 AM
Proton NMR problems (2)
Proton NMR problems (2)
http://i.ytimg.com/vi/3MRZP3fU9lo/default.jpg
Proton NMR problems (2)
Organic chemistry: Proton NMR (nuclear magnetic resonance) spectroscopy problems This is a recording of a tutoring session, posted with the students' permission. These videos are offered on a "pay-what-you-like" basis. You can pay for the use of the videos at my website: www.freelance-teacher.com For a printable document containing the NMR table and problems discussed in this video series, go to my website. For a list of all the available video series, arranged in suggested viewing order,...
nmrlearner
NMR educational videos
0
08-18-2010 01:38 AM
Proton NMR problems (3)
Proton NMR problems (3)
http://i.ytimg.com/vi/7bTv_-4CUEA/default.jpg
Proton NMR problems (3)
Organic chemistry: Proton NMR (nuclear magnetic resonance) spectroscopy problems This is a recording of a tutoring session, posted with the students' permission. These videos are offered on a "pay-what-you-like" basis. You can pay for the use of the videos at my website: www.freelance-teacher.com For a printable document containing the NMR table and problems discussed in this video series, go to my website. For a list of all the available video series, arranged in suggested viewing order,...
nmrlearner
NMR educational videos
0
08-18-2010 01:38 AM
problems with cbcaconh
Hi everyone!
I encounter a funny problem.
While recording the CBCACONH spectra, the Calpha atoms are low field shifted, whereas the Cb atoms are high field shifted, relative to the CACBNH.
The CACBNH spectra is looking very reasonable.
I guess it is induced by the gradient pulses utilized in my CBCACONH spectra.
If you have any guess what is going on, please tell me.
And by the way I am using G4.256 pulse and G3.256 pulse for the shaped pulses in the Carbon frequency.
Further more to solve this problem I did this measurements on my ubiquitin standard, so measurements should be nice and...