BioNMR
NMR aggregator & online community since 2003
BioNMR    
Learn or help to learn NMR - get free NMR books!
 

Go Back   BioNMR > Educational resources > Journal club
Advanced Search



Jobs Groups Conferences Literature Pulse sequences Software forums Programs Sample preps Web resources BioNMR issues


Webservers
NMR processing:
MDD
NMR assignment:
Backbone:
Autoassign
MARS
UNIO Match
PINE
Side-chains:
UNIO ATNOS-Ascan
NOEs:
UNIO ATNOS-Candid
UNIO Candid
ASDP
Structure from NMR restraints:
Ab initio:
GeNMR
Cyana
XPLOR-NIH
ASDP
UNIO ATNOS-Candid
UNIO Candid
Fragment-based:
BMRB CS-Rosetta
Rosetta-NMR (Robetta)
Template-based:
GeNMR
I-TASSER
Refinement:
Amber
Structure from chemical shifts:
Fragment-based:
WeNMR CS-Rosetta
BMRB CS-Rosetta
Homology-based:
CS23D
Simshift
Torsion angles from chemical shifts:
Preditor
TALOS
Promega- Proline
Secondary structure from chemical shifts:
CSI (via RCI server)
TALOS
MICS caps, β-turns
d2D
PECAN
Flexibility from chemical shifts:
RCI
Interactions from chemical shifts:
HADDOCK
Chemical shifts re-referencing:
Shiftcor
UNIO Shiftinspector
LACS
CheckShift
RefDB
NMR model quality:
NOEs, other restraints:
PROSESS
PSVS
RPF scores
iCing
Chemical shifts:
PROSESS
CheShift2
Vasco
iCing
RDCs:
DC
Anisofit
Pseudocontact shifts:
Anisofit
Protein geomtery:
Resolution-by-Proxy
PROSESS
What-If
iCing
PSVS
MolProbity
SAVES2 or SAVES4
Vadar
Prosa
ProQ
MetaMQAPII
PSQS
Eval123D
STAN
Ramachandran Plot
Rampage
ERRAT
Verify_3D
Harmony
Quality Control Check
NMR spectrum prediction:
FANDAS
MestReS
V-NMR
Flexibility from structure:
Backbone S2
Methyl S2
B-factor
Molecular dynamics:
Gromacs
Amber
Antechamber
Chemical shifts prediction:
From structure:
Shiftx2
Sparta+
Camshift
CH3shift- Methyl
ArShift- Aromatic
ShiftS
Proshift
PPM
CheShift-2- Cα
From sequence:
Shifty
Camcoil
Poulsen_rc_CS
Disordered proteins:
MAXOCC
Format conversion & validation:
CCPN
From NMR-STAR 3.1
Validate NMR-STAR 3.1
NMR sample preparation:
Protein disorder:
DisMeta
Protein solubility:
camLILA
ccSOL
Camfold
camGroEL
Zyggregator
Isotope labeling:
UPLABEL
Solid-state NMR:
sedNMR


Reply
Thread Tools Search this Thread Rate Thread Display Modes
  #1  
Unread 11-19-2016, 08:35 PM
nmrlearner's Avatar
Senior Member
 
Join Date: Jan 2005
Posts: 19,903
Points: 193,617, Level: 100
Points: 193,617, Level: 100 Points: 193,617, Level: 100 Points: 193,617, Level: 100
Level up: 0%, 0 Points needed
Level up: 0% Level up: 0% Level up: 0%
Activity: 50.7%
Activity: 50.7% Activity: 50.7% Activity: 50.7%
Last Achievements
Award-Showcase
NMR Credits: 0
NMR Points: 193,617
Downloads: 0
Uploads: 0
Default Synergic Effect of Active Sites in Zinc-Modified ZSM-5 Zeolites as Revealed by High-Field Solid-State NMR Spectroscopy

Synergic Effect of Active Sites in Zinc-Modified ZSM-5 Zeolites as Revealed by High-Field Solid-State NMR Spectroscopy


Understanding the nature of active sites in metal-supported catalysts is of great importance towards establishing their structure–property relationships. The outstanding catalytic performance of metal-supported catalysts is frequently ascribed to the synergic effect of different active sites, which is however not well spectroscopically characterized. Herein, we report the direct detection of surface Zn species and 1H–67Zn internuclear interaction between Zn2+ ions and Brønsted acid sites on Zn-modified ZSM-5 zeolites by high-field solid-state NMR spectroscopy. The observed promotion of C-H bond activation of methane is rationalized by the enhanced Brønsted acidity generated by synergic effects arising from the spatial proximity/interaction between Zn2+ ions and Brønsted acidic protons. The concentration of synergic active sites is determined by 1H–67Zn double-resonance solid-state NMR spectroscopy.Together forever: High-field 67Zn solid-state NMR spectroscopy reveals the synergy between active sites in Zn-modified ZSM-5 zeolites. The internuclear spatial proximity/interaction between Zn2+ ions and Brønsted acid sites of the zeolites leads to a synergic effect in the C-H bond activation of methane.

More...
Reply With Quote


Did you find this post helpful? Yes | No

Reply
Similar Threads
Thread Thread Starter Forum Replies Last Post
[NMR paper] Cellulose Structural Polymorphism in Plant Primary Cell Walls Investigated by High-Field 2D Solid-State NMR Spectroscopy and Density Functional Theory Calculations.
Cellulose Structural Polymorphism in Plant Primary Cell Walls Investigated by High-Field 2D Solid-State NMR Spectroscopy and Density Functional Theory Calculations. Cellulose Structural Polymorphism in Plant Primary Cell Walls Investigated by High-Field 2D Solid-State NMR Spectroscopy and Density Functional Theory Calculations. Biomacromolecules. 2016 May 18; Authors: Wang T, Yang H, Kubicki JD, Hong M Abstract The native cellulose of bacterial, algal, and animal origins has been well studied structurally using X-ray and neutron...
nmrlearner Journal club 0 05-19-2016 10:13 AM
Site-Specific Protein Internal Motions Revealed by 2H Solid-State NMR Spectroscopy
Site-Specific Protein Internal Motions Revealed by 2H Solid-State NMR Spectroscopy Publication date: 16 February 2016 Source:Biophysical Journal, Volume 110, Issue 3, Supplement 1</br> Author(s): Xiangyan Shi, Deborah A. Berthold, Chad M. Rienstra</br> </br></br> </br></br> More...
nmrlearner Journal club 0 02-17-2016 07:50 PM
Theoretical Aspects of Dynamic Nuclear Polarization in the Solid State: The Influence of High Radical Concentrations on the Solid Effect and Cross Effect Mechanisms
From The DNP-NMR Blog: Theoretical Aspects of Dynamic Nuclear Polarization in the Solid State: The Influence of High Radical Concentrations on the Solid Effect and Cross Effect Mechanisms Hovav, Y., et al., Theoretical Aspects of Dynamic Nuclear Polarization in the Solid State: The Influence of High Radical Concentrations on the Solid Effect and Cross Effect Mechanisms. Appl. Magn. Reson., 2012. 43(1-2): p. 21-41. http://dx.doi.org/10.1007/s00723-012-0359-0
nmrlearner News from NMR blogs 0 11-21-2013 01:14 AM
[NMR paper] Proton-Detected Solid-State NMR Spectroscopy at Aliphatic Sites: Application to Crystalline Systems.
Proton-Detected Solid-State NMR Spectroscopy at Aliphatic Sites: Application to Crystalline Systems. Related Articles Proton-Detected Solid-State NMR Spectroscopy at Aliphatic Sites: Application to Crystalline Systems. Acc Chem Res. 2013 Jun 7; Authors: Asami S, Reif B Abstract When applied to biomolecules, solid-state NMR suffers from low sensitivity and resolution. The major obstacle to applying proton detection in the solid state is the proton dipolar network, and deuteration can help avoid this problem. In the past, researchers...
nmrlearner Journal club 0 06-12-2013 11:42 AM
The interplay between the solid effect and the cross effect mechanisms in solid state 13C DNP at 95 GHz using trityl radicals
From The DNP-NMR Blog: The interplay between the solid effect and the cross effect mechanisms in solid state 13C DNP at 95 GHz using trityl radicals Banerjee, D., et al., The interplay between the solid effect and the cross effect mechanisms in solid state 13C DNP at 95&#xa0;GHz using trityl radicals. J. Magn. Reson., 2013. 230(0): p. 212-219. http://dx.doi.org/10.1016/j.jmr.2013.02.010
nmrlearner News from NMR blogs 0 05-07-2013 12:31 AM
[NMR paper] Nutrient-dependent structural changes in S. aureus peptidoglycan revealed by solid-state NMR spectroscopy.
Nutrient-dependent structural changes in S. aureus peptidoglycan revealed by solid-state NMR spectroscopy. http://www.bionmr.com//www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--pubs.acs.org-images-pubmed-acspubs.jpg Related Articles Nutrient-dependent structural changes in S. aureus peptidoglycan revealed by solid-state NMR spectroscopy. Biochemistry. 2012 Oct 16;51(41):8143-53 Authors: Zhou X, Cegelski L Abstract The bacterial cell wall is essential to cell survival and is a major target of antibiotics. The main component of the...
nmrlearner Journal club 0 04-02-2013 07:23 PM
Nutrient-Dependent StructuralChanges in S.aureus Peptidoglycan Revealed by Solid-State NMR Spectroscopy
Nutrient-Dependent StructuralChanges in S.aureus Peptidoglycan Revealed by Solid-State NMR Spectroscopy http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/bichaw/0/bichaw.ahead-of-print/bi3012115/aop/images/medium/bi-2012-012115_0011.gif Biochemistry DOI: 10.1021/bi3012115 http://feeds.feedburner.com/~ff/acs/bichaw?d=yIl2AUoC8zA http://feeds.feedburner.com/~r/acs/bichaw/~4/KQGbaoLxmUQ More...
nmrlearner Journal club 0 10-02-2012 06:32 PM
Nature and Structure of Aluminum Surface Sites Grafted on Silica from a Combination of High-Field Aluminum-27 Solid-State NMR Spectroscopy and First-Principles Calculations
Nature and Structure of Aluminum Surface Sites Grafted on Silica from a Combination of High-Field Aluminum-27 Solid-State NMR Spectroscopy and First-Principles Calculations Rachel Nathaniel Kerber, Anthony Kermagoret, Emmanuel Callens, Pierre Florian, Dominique Massiot, Anne Lesage, Christophe Cope?ret, Franc?oise Delbecq, Xavier Rozanska and Philippe Sautet http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja3008566/aop/images/medium/ja-2012-008566_0006.gif Journal of the American Chemical Society DOI: 10.1021/ja3008566 ...
nmrlearner Journal club 0 04-10-2012 02:44 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



BioNMR advertisements to pay for website hosting and domain registration. Nobody does it for us.



Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Copyright, BioNMR.com, 2003-2013
Search Engine Friendly URLs by vBSEO 3.6.0

All times are GMT. The time now is 06:11 PM.


Map