New Insight into the Hydrocarbon-Pool Chemistry of the Methanol-to-Olefins Conversion over Zeolite H-ZSM-5 from GC-MS, Solid-State NMR Spectroscopy, and DFT Calculations

2014 ◽  
Vol 20 (39) ◽  
pp. 12432-12443 ◽  
Author(s):  
Chao Wang ◽  
Yueying Chu ◽  
Anmin Zheng ◽  
Jun Xu ◽  
Qiang Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Dft Calculations ◽  
Solid State Nmr ◽  
Solid State Nmr Spectroscopy ◽  
Hydrocarbon Pool ◽  
Insight Into

scholarly journals Synthesis, characterization and modeling of self-assembled porphyrin nanorods

2019 ◽  
Vol 23 (11n12) ◽  
pp. 1346-1354 ◽  
Author(s):  
Danielle Laurencin ◽  
Pascal G. Yot ◽  
Christel Gervais ◽  
Yannick Guari ◽  
Sébastien Clément ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Dft Calculations ◽  
Powder Diffraction ◽  
Solid State Nmr ◽  
Molecular Level ◽  
Ion Association ◽  
Free Base ◽  
X Ray ◽  
Solid State Nmr Spectroscopy

Porphyrin nanorods were prepared by ion-association between free-base meso 5,10,15,20-tetrakis-(4-[Formula: see text]-methylpyridinium)porphyrin cations and tetraphenylborate anions. The nanorods have variable lengths (up to a few micrometers long) and diameters ([Formula: see text]50–500 nm). Their structure at the molecular level was elucidated by combining multinuclear solid state NMR spectroscopy, synchrotron X-ray powder diffraction and DFT calculations.

scholarly journals The acidic nature of “NMR-invisible” tri-coordinated framework aluminum species in zeolites

2019 ◽  
Vol 10 (43) ◽  
pp. 10159-10169 ◽  
Author(s):  
Shaohui Xin ◽  
Qiang Wang ◽  
Jun Xu ◽  
Yueying Chu ◽  
Pengfei Wang ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
Zeolite Catalysts ◽  
Probe Molecules ◽  
Solid State Nmr Spectroscopy ◽  
Acidic Nature ◽  
Insight Into

A unique insight into the acidic nature of the tri-coordinated framework aluminum (AlFR) in H-ZSM-5 zeolite catalysts has been provided using multi-nuclear and multi-dimensional solid-state NMR spectroscopy in conjunction with TMPO probe molecules.

Dynamics of Silica-Supported Catalysts Determined by Combining Solid-State NMR Spectroscopy and DFT Calculations

2008 ◽  
Vol 130 (18) ◽  
pp. 5886-5900 ◽  
Author(s):  
Frédéric Blanc ◽  
Jean-Marie Basset ◽  
Christophe Copéret ◽  
Amritanshu Sinha ◽  
Zachary J. Tonzetich ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Dft Calculations ◽  
Solid State Nmr ◽  
Supported Catalysts ◽  
Solid State Nmr Spectroscopy

scholarly journals Solid-state NMR measurements and DFT calculations of the magnetic shielding tensors of protons of water trapped in barium chlorate monohydrate

RSC Advances ◽  
2014 ◽  
Vol 4 (99) ◽  
pp. 56248-56258 ◽  
Author(s):  
Diego Carnevale ◽  
Sharon E. Ashbrook ◽  
Geoffrey Bodenhausen
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Dft Calculations ◽  
Solid State Nmr ◽  
Magic Angle Spinning ◽  
Magnetic Shielding ◽  
Magic Angle ◽  
Solid State Nmr Spectroscopy ◽  
Shielding Tensors ◽  
Angle Spinning

The magnetic shielding tensors of protons of water in barium chlorate monohydrate are investigated by means of solid-state NMR spectroscopy, both for static powders and under magic-angle spinning conditions.

scholarly journals Spying on the boron–boron triple bond using spin–spin coupling measured from 11B solid-state NMR spectroscopy

2015 ◽  
Vol 6 (6) ◽  
pp. 3378-3382 ◽  
Author(s):  
Frédéric A. Perras ◽  
William C. Ewing ◽  
Theresa Dellermann ◽  
Julian Böhnke ◽  
Stefan Ullrich ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Solid State Nmr ◽  
Triple Bond ◽  
Coupling Constants ◽  
Spin Coupling ◽  
Solid State Nmr Spectroscopy ◽  
Spin Spin Coupling ◽  
Insight Into

Boron–boron J coupling constants provide new insight into the nature of the boron–boron triple bond.

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