Salnikov, O.G., et al., Kinetic Study of Propylene Hydrogenation over Pt/Al2O3 by Parahydrogen-Induced Polarization. Appl. Magn. Reson., 2012. 44(1-2): p. 279-288.
Parahydrogen-induced polarization has been successfully used for a kinetic study of propylene hydrogenation over a Pt/Al2O3 catalyst. It was shown that the reaction orders with respect to hydrogen are different for the pairwise and the non-pairwise hydrogen addition and are equal to 0.7 and 0.1, respectively. This observation of different reaction orders confirms the coexistence of different types of active sites which are responsible for the overall and the pairwise hydrogen addition to the propylene C=C double bond. Moreover, 0.7 reaction order with respect to H2 for pairwise hydrogen addition indicates that the contribution of pairwise addition depends on the concentration of molecular hydrogen. Therefore, this observation can be developed into a practical tool for producing fluids with highly polarized nuclear spins by changing the hydrogen concentration.
Light-Induced Spin Polarization in Porphyrin-Based Donor–Acceptor Dyads and Triads
From The DNP-NMR Blog:
Light-Induced Spin Polarization in Porphyrin-Based Donor–Acceptor Dyads and Triads
van der Est, A. and P. Poddutoori, Light-Induced Spin Polarization in Porphyrin-Based Donor–Acceptor Dyads and Triads. Appl. Magn. Reson., 2013. 44(1-2): p. 301-318.
http://dx.doi.org/10.1007/s00723-012-0420-z
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08-01-2013 12:26 AM
Symmetry Break of Special Pair: Photochemically Induced Dynamic Nuclear Polarization NMR Confirms Control by Nonaromatic Substituents
Symmetry Break of Special Pair: Photochemically Induced Dynamic Nuclear Polarization NMR Confirms Control by Nonaromatic Substituents
Karthick Babu Sai Sankar Gupta, A. Alia, Huub J.M. de Groot and Jo?rg Matysik
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja402238w/aop/images/medium/ja-2013-02238w_0006.gif
Journal of the American Chemical Society
DOI: 10.1021/ja402238w
http://feeds.feedburner.com/~ff/acs/jacsat?d=yIl2AUoC8zA
http://feeds.feedburner.com/~r/acs/jacsat/~4/SoHEJYzuguk
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07-03-2013 01:46 PM
[NMR paper] Symmetry break of special pair: Photochemically induced dynamic nuclear polarization NMR confirms control by nonaromatic substituents.
Symmetry break of special pair: Photochemically induced dynamic nuclear polarization NMR confirms control by nonaromatic substituents.
Symmetry break of special pair: Photochemically induced dynamic nuclear polarization NMR confirms control by nonaromatic substituents.
J Am Chem Soc. 2013 Jun 6;
Authors: Sai Sankar Gupta KB, Alia A, de Groot HJ, Matysik J
Abstract
Despite the high structural symmetry of cofactor arrangement and protein environment, light-induced electron transfer in photosynthetic reaction centers (RCs) of the purple...
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06-07-2013 10:04 AM
High Resolution Para-Hydrogen Induced Polarization in Inhomogeneous Magnetic Fields
From the The DNP-NMR Blog:
High Resolution Para-Hydrogen Induced Polarization in Inhomogeneous Magnetic Fields
Buljubasich, L., et al., High Resolution Para-Hydrogen Induced Polarization in Inhomogeneous Magnetic Fields. J. Magn. Reson., 2013(0).
http://dx.doi.org/10.1016/j.jmr.2013.02.008
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04-15-2013 08:52 AM
[NMR paper] 19F NMR study of protein-induced rhombic perturbations on the electronic structure of
19F NMR study of protein-induced rhombic perturbations on the electronic structure of the active site of myoglobin.
Related Articles 19F NMR study of protein-induced rhombic perturbations on the electronic structure of the active site of myoglobin.
J Biol Inorg Chem. 2000 Aug;5(4):455-62
Authors: Yamamoto Y, Hirai Y, Suzuki A
A novel C2-symmetric ring-fluorinated hemin, 13,17-bis(2-carboxyethyl)-2,8,12,18-tetramethyl-3,7-difluoroporphyrin atoiron(III), has been synthesized and was incorporated into sperm whale apomyoglobin to investigate...
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11-19-2010 08:29 PM
NMR study of hydrogen exchange during the B-Z transition of a DNA duplex induced by t
NMR study of hydrogen exchange during the B-Z transition of a DNA duplex induced by the Z? domains of yatapoxvirus E3L.
Related Articles NMR study of hydrogen exchange during the B-Z transition of a DNA duplex induced by the Z? domains of yatapoxvirus E3L.
FEBS Lett. 2010 Oct 8;
Authors: Lee EH, Seo YJ, Ahn HC, Kang YM, Kim HE, Lee YM, Choi BS, Lee JH
The Yaba-like disease viruses (YLDV) are members of the Yatapoxvirus family and have double-stranded DNA genomes. The E3L protein, which is essential for pathogenesis in the vaccinia virus,...
Kinetic Study of Propylene Hydrogenation over Pt/Al2O3 by Parahydrogen-Induced Polarization
Linear Mode
