1H MAS NMR Study of Local Structure and Dynamics of Water Molecule in (±)-[Co(en)3]Cl3·nD2O

2003 ◽  
Vol 107 (49) ◽  
pp. 13681-13687 ◽  
Author(s):  
Takahiro Ueda ◽  
Nobuo Nakamura
Keyword(s):  
Water Molecule ◽  
Local Structure ◽  
Mas Nmr ◽  
1H Mas Nmr ◽  
Structure And Dynamics ◽  
Nmr Study

A13C CP/MAS NMR Study of the Structure and Dynamics of [(η5-C5H5)2Fe2(CO)4] Included in γ-Cyclodextrin:  Evidence for Terminal−Bridging Exchange in thecisIsomer

2006 ◽  
Vol 25 (9) ◽  
pp. 2248-2252 ◽  
Author(s):  
Holly C. Canuto ◽  
Admir Masic ◽  
Nicholas H. Rees ◽  
Stephen J. Heyes ◽  
Roberto Gobetto ◽  
...  
Keyword(s):  
Mas Nmr ◽  
Structure And Dynamics ◽  
Nmr Study ◽  
Cp Mas Nmr

High-resolution 1H MAS NMR study of anchored zirconium(IV) hydride complexes

1989 ◽  
Vol 53 (1) ◽  
pp. 37-41 ◽  
Author(s):  
S.A. Vasnetsov ◽  
A.V. Nosov ◽  
V.M. Mastikhin ◽  
V.A. Zakharov
Keyword(s):  
High Resolution ◽  
Mas Nmr ◽  
1H Mas Nmr ◽  
Hydride Complexes ◽  
Nmr Study

13CP/MAS NMR Study of Motion and Local Structure of Phenethyl- ammonium Ion in [C6H5CH2CH2 NH3]2PbX4(X = Cl, Br, I)

1998 ◽  
Vol 53 (12) ◽  
pp. 983-988 ◽  
Author(s):  
Takahiro Ueda ◽  
Katsuyuki Shimizu ◽  
Hiroshi Ohki ◽  
Tsutomu Okuda
Keyword(s):  
Local Structure ◽  
Chemical Exchange ◽  
Intramolecular Interaction ◽  
Phenyl Group ◽  
Mas Nmr ◽  
Ammonium Ion ◽  
Orbital Energy ◽  
Energy Calculation ◽  
Magic Angle ◽  
Nmr Study

Abstract Ionic motion and local structure of phenethylammonium ion (C6H5CH2CH2NH3+) in a series of phenethylammonium lead(II) halides, [C6H6CH2CH2NH3]2PbX4 (X = Cl, Br, I) were studied by means of 13C cross polarization/magic angle sample spinning (CP/MAS) NMR technique. Among the three salts, remarkable differences in the spectra were observed in the signals corresponding to the phenyl carbons. The peaks from C2, C3, C5, and C6 in the phenyl group were split into three for the chloride and into two for the bromide, although in the iodide those were observed as a single peak. Coalescence of those peaks, as well as line broadening were observed on heating. This indicated that peak split brings about disorder of the orientation in the phenyl group around the C1-C4 axis, suggesting to have three and two orientations for the chloride and the bromide, respectively. Above room temperature the phenyl group undergoes chemical exchange among these orientations, and at higher temperature, reorientation with a large amplitude takes place around its axis. The apparent activation energies of the reorientation of the phenyl group for the chloride and bromide were estimated from the temperature dependence of the linewidth of the resonance peaks to be about 24 kJ mol-1 , 25 kJ mol-1 , respectively, which is similar to in the iodide (25.0 kJ mol-1). Ab initio molecular orbital energy calculation was carried out to evaluate the potential barrier of the internal rotation of the phenyl group in a free phenethylammonium ion. The intramolecular interaction was evaluated to be 13.9 kJ mol-1 from the calculation, and the intermolecular interaction results to be 10 kJ mol-1 .

Controlled atmosphere 13C and 1H MAS NMR study of reforming route of methane with carbon dioxide over Rh/SBA-15

2011 ◽  
Vol 401 (1-2) ◽  
pp. 114-118 ◽  
Author(s):  
Linping Qian ◽  
Yu Ren ◽  
Hui Yu ◽  
Yu Wang ◽  
Bin Yue ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Mas Nmr ◽  
Controlled Atmosphere ◽  
1H Mas Nmr ◽  
Nmr Study

1H MAS NMR Study of Cysteine-Coated Gold Nanoparticles

2012 ◽  
Vol 116 (27) ◽  
pp. 7771-7775 ◽  
Author(s):  
Anuji Abraham ◽  
Andrew J. Ilott ◽  
Joel Miller ◽  
Terry Gullion
Keyword(s):  
Gold Nanoparticles ◽  
Mas Nmr ◽  
1H Mas Nmr ◽  
Nmr Study

1H MAS NMR study of the coordination of hydroxyl groups generated upon adsorption of H2O and CD3OH on clean MgO surfaces

2006 ◽  
Vol 307 (2) ◽  
pp. 239-244 ◽  
Author(s):  
C CHIZALLET ◽  
G COSTENTIN ◽  
H LAURONPERNOT ◽  
J MAQUET ◽  
M CHE
Keyword(s):  
Mas Nmr ◽  
Hydroxyl Groups ◽  
1H Mas Nmr ◽  
Nmr Study

1H MAS NMR study of protonic conduction in layered HNbWO6 · xH2O (x = 1.5, 0.5)

1996 ◽  
Vol 86-88 ◽  
pp. 609-611 ◽  
Author(s):  
Nader Binesh ◽  
V. Bhat ◽  
S.V. Bhat
Keyword(s):  
Mas Nmr ◽  
Protonic Conduction ◽  
1H Mas Nmr ◽  
Nmr Study

A 31P and 1H MAS NMR study of phosphate sorption onto calcium carbonate

1992 ◽  
Vol 152 (1) ◽  
pp. 141-160 ◽  
Author(s):  
Z.R Hinedi ◽  
S Goldberg ◽  
A.C Chang ◽  
J.P Yesinowski
Keyword(s):  
Calcium Carbonate ◽  
Mas Nmr ◽  
1H Mas Nmr ◽  
Phosphate Sorption ◽  
Nmr Study
Sign in / Sign up

Export Citation Format

Share Document