Two-dimensional spin-exchange solid-state NMR study of the crystal structure of cellulose II

Polymer ◽  
2004 ◽  
Vol 45 (13) ◽  
pp. 4541-4547 ◽  
Author(s):  
Hiroyuki Kono ◽  
Yukari Numata
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Solid State Nmr ◽  
Spin Exchange ◽  
Cellulose Ii ◽  
Two Dimensional ◽  
Nmr Study

Anion dynamics and conductivity in glassy polyelectrolytes - a two-dimensional solid state NMR study

1994 ◽  
Vol 68 (1-2) ◽  
pp. 151-158 ◽  
Author(s):  
R RIETZ ◽  
K SCHMIDTROHR ◽  
W MEYER ◽  
H SPIESS ◽  
G WEGNER
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Two Dimensional ◽  
Nmr Study

Metal polypyrazolylborates XIII. Solution and solid state NMR study of cyano—mercury(II) polypyrazolylborates. X-ray crystal structure of [HB(3,5-Me2pz)3]HgCN

1997 ◽  
Vol 539 (1-2) ◽  
pp. 9-17 ◽  
Author(s):  
Giancarlo Gioia Lobbia ◽  
Patrizio Cecchi ◽  
Roberto Gobetto ◽  
Giuseppe Digilio ◽  
Riccardo Spagna ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Solid State Nmr ◽  
X Ray ◽  
Nmr Study

scholarly journals Linear dicoordinate beryllium: a 9Be solid-state NMR study of a discrete zero-valent s-block beryllium complex

2018 ◽  
Vol 96 (7) ◽  
pp. 646-652 ◽  
Author(s):  
C. Leroy ◽  
J.K. Schuster ◽  
T. Schaefer ◽  
K. Müller-Buschbaum ◽  
H. Braunschweig ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Chemical Shift ◽  
Solid State Nmr ◽  
Chemical Shift Tensor ◽  
X Ray Diffraction ◽  
X Ray ◽  
Quadrupolar Coupling ◽  
Nmr Study ◽  
Tensor Data

Beryllium-9 (9Be) quadrupolar coupling and chemical shift tensor data are reported for bis(1-(2,6-diisopropylphenyl)-3,3,5,5-tetramethylpyrrolidine-2-ylidene)beryllium (Be(CAAC)2). These are the first such data for beryllium in a linear dicoordinate environment. The 9Be quadrupolar coupling constant, 2.36(0.02) MHz, is the largest recorded in the solid state to date for this isotope. The span of the beryllium chemical shift tensor, 22(2) ppm, covers about half of the known 9Be chemical shift range, and the isotropic 9Be chemical shift, 32.0(0.3) ppm, is the largest reported in the solid state to our knowledge. DFT calculations reproduce the experimental data well. A natural localized molecular orbital approach has been used to explain the origins and orientation of the beryllium electric field gradient tensor. The single-crystal X-ray structure of a second polymorph of Be(CAAC)2 is also reported. Inspection of the powder X-ray diffraction data shows that the new crystal structure is part of the bulk product next to another crystalline phase. Therefore, experimental X-ray powder data for the microcrystalline powder sample and the SSNMR data do not fully match either the originally reported crystal structure (Arrowsmith et al. Nat. Chem. 2016, 8, 890–894) or the new polymorph. The ability of solid-state NMR and powder X-ray diffraction to characterize powdered samples was thus particularly useful in this work.

Two-dimensional spin-exchange solid-state NMR studies of 13C-enriched wood

1997 ◽  
Vol 8 (1) ◽  
pp. 25-32 ◽  
Author(s):  
Michel Bardet ◽  
Lyndon Emsley ◽  
Marc Vincendon
Keyword(s):  
Solid State ◽  
Solid State Nmr ◽  
Spin Exchange ◽  
Two Dimensional ◽  
Nmr Studies

scholarly journals The Crystal Structure of Ba3Nb2O8 Revisited: A Neutron Diffraction and Solid-State NMR Study

2017 ◽  
Vol 56 (5) ◽  
pp. 2653-2661
Author(s):  
Eve J. Wildman ◽  
Abbie C. Mclaughlin ◽  
James F. Macdonald ◽  
John V. Hanna ◽  
Janet M. S. Skakle
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Neutron Diffraction ◽  
Solid State Nmr ◽  
Nmr Study
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