X-ray diffraction and NMR study on the structure of Co/Cu superlattices with artificially modified interfaces

1994 ◽  
Vol 50 (24) ◽  
pp. 18580-18585 ◽  
Author(s):  
Motofumi Suzuki ◽  
Yasunori Taga ◽  
Atsushi Goto ◽  
Hiroshi Yasuoka
Keyword(s):  
X Ray Diffraction ◽  
X Ray ◽  
Nmr Study

scholarly journals Tautomerisation in 1-(4-Methylphenylazo)naphthalen-2-ol and 2-(4-Methylphenylazo)-4-methylphenol: A Crystallographic and 13C{1H}NMR Study

1999 ◽  
Vol 23 (3) ◽  
pp. 178-179
Author(s):  
Wendy I. Cross ◽  
Kevin R. Flower ◽  
Robin G. Pritchard
Keyword(s):  
Acetic Acid ◽  
Nmr Spectroscopy ◽  
Resonant Frequency ◽  
X Ray Diffraction ◽  
X Ray ◽  
H Nmr ◽  
Nmr Study ◽  
Acetic Acid Esters ◽  
Acid Esters ◽  
Equivalent Carbon

The acetic acid esters of 1-(4-methylphenylazo)naphthalen-2-ol 1 and 2-(4-methylphenylazo)-4-methylphenol 3 are prepared and characterised by single crystal X-ray diffraction studies and 13C{1H}NMR spectroscopy; the position of the C(2)13C resonance for the ester is used to predict the position of resonant frequency of the equivalent carbon in the parent alcohols and hence, calculate the position of the azo-hydrazone equilibrium in these compounds.

Combined X-ray Diffraction and15N CPMAS NMR Study of Molecular Structure and Proton Order/Disorder Phenomena in CyclicN,N‘-Bisarylformamidine Dimers

1997 ◽  
Vol 119 (50) ◽  
pp. 12223-12230 ◽  
Author(s):  
Romana Anulewicz ◽  
Iwona Wawer ◽  
Tadeusz Marek Krygowski ◽  
Ferdinand Männle ◽  
Hans-Heinrich Limbach
Keyword(s):  
Molecular Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nmr Study

ChemInform Abstract: X-Ray Diffraction, EPR, and 6Li and 27Al MAS NMR Study of LiAlO2-LiCoO2 Solid Solutions.

ChemInform ◽  
2010 ◽  
Vol 29 (17) ◽  
pp. no-no
Author(s):  
R. ALCANTARA ◽  
P. LAVELA ◽  
P. L. RELANO ◽  
J. L. TIRADO ◽  
E. ZHECHEVA ◽  
...  
Keyword(s):  
Solid Solutions ◽  
Mas Nmr ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nmr Study ◽  
27Al Mas Nmr

An X-ray Diffraction and MAS NMR Study of the Thermal Expansion Properties of Calcined Siliceous Ferrierite

2003 ◽  
Vol 125 (14) ◽  
pp. 4342-4349 ◽  
Author(s):  
Ivor Bull ◽  
Philip Lightfoot ◽  
Luis A. Villaescusa ◽  
Lucy M. Bull ◽  
Richard K. B. Gover ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Mas Nmr ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nmr Study

Solid-state and solution 117Sn NMR study of C2O4(SnPh3)2: a revision

2011 ◽  
Vol 34 (5-6) ◽  
pp. 153-153
Author(s):  
Libasse Diop
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Solid State ◽  
Magnetic Resonance ◽  
State Structure ◽  
X Ray Diffraction ◽  
Magnetic Resonance Studies ◽  
X Ray ◽  
Nmr Study ◽  
Tetrahedral Environment ◽  
Good Agreement

Abstract Solid-state and solution 117Sn nuclear magnetic resonance studies of C2O4(SnPh3)2 have been carried out and found to be in good agreement with the tetrahedral environment of the tin (IV) atom as found from the solid state structure, previously determined by a single crystal X-ray diffraction analysis.

Synthesis, X-ray diffraction and solid-state 31P magic angle spinning NMR study of ?-tricalcium orthophosphate

1996 ◽  
Vol 7 (7) ◽  
pp. 457-463 ◽  
Author(s):  
M. Bohner ◽  
J. LeMa�tre ◽  
A. P. LeGrand ◽  
J.-B. D'Espinose de la Caillerie ◽  
P. Belgrand
Keyword(s):  
Solid State ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nmr Study ◽  
Angle Spinning

Crystal and molecular structure of Z- and E-1,2-dichloro-1,2-bis(2-chlorophenyl)ethylene. An X-ray and NMR study

1995 ◽  
Vol 73 (9) ◽  
pp. 1520-1525
Author(s):  
Luciano Antolini ◽  
Ugo Folli ◽  
Dario Iarossi ◽  
Adele Mucci ◽  
Silvia Sbardellati ◽  
...  
Keyword(s):  
Chemical Shifts ◽  
Monoclinic Space Group ◽  
X Ray Diffraction ◽  
Orthorhombic Space Group ◽  
Space Group ◽  
X Ray ◽  
Nmr Study ◽  
Phenyl Rings ◽  
A Cell ◽  
C Nmr

The crystal structures of the title compounds were determined by single crystal X-ray diffraction techniques. The molecule of the Z isomer, which crystallizes in the monoclinic space group C2/c with Z = 4 in a cell of dimensions a = 14.891 (2), b = 10.780(2), c = 8.769(1) Å, β = 97.47(2)°, V = 1395.7(7) Å3 has crystallographic twofold symmetry. The E form crystallizes in the orthorhombic space group Pbca with a = 11.730(1), b = 6.932(1), c = 16.841(1) Å, V = 1369.4(2) Å3 and Z = 4. Its molecules have crystallographically dictated [Formula: see text] symmetry. In both isomers the phenyl rings are roughly perpendicular to the average ethylene plane. The atoms characterizing this plane show significant deviations from planarity in the Z isomer. Marked bond-angle distortions at the ethene carbons of both structures are observed. The 1H and 13C NMR spectra of the compounds were measured and, particularly in the case of the 1H chemical shifts, fall into two quite separate spectral regions. At low temperature, two conformational isomers, those with different relative orientation of the C—Cl bonds of the phenyl rings, are observed in the spectrum of each compound. Keywords: chlorostilbenes, overcrowded molecules. X-ray structure, conformations, NMR spectroscopy.

X-ray diffraction and 1h and 51V NMR study of the structure of a TiVH alloy in relation to preparation conditions

1986 ◽  
Vol 123 (1-2) ◽  
pp. 75-84 ◽  
Author(s):  
Bogdan Nowak ◽  
Shigenobu Hayashi ◽  
Kikuko Hayamizu ◽  
Osamu Yamamoto
Keyword(s):  
X Ray Diffraction ◽  
X Ray ◽  
51V Nmr ◽  
Preparation Conditions ◽  
Nmr Study

1H NMR study of the solvolysis of the paramagnetic tetrachloro-bis(imidazole)ruthenium(III) anion in water, methanol, and dimethyl sulfoxide

1995 ◽  
Vol 73 (4) ◽  
pp. 471-482 ◽  
Author(s):  
Craig Anderson ◽  
André L. Beauchamp
Keyword(s):  
Dimethyl Sulfoxide ◽  
1H Nmr ◽  
Room Temperature ◽  
Single Species ◽  
X Ray Diffraction ◽  
Chloro Complexes ◽  
X Ray ◽  
H Nmr ◽  
Nmr Study ◽  
Nmr Signals

The 1H NMR signals of the Ru(III) species present in solution are considerably broadened and shifted by paramagnetism, but they can be used to follow chloride displacement in the trans-[RuCl4Im2]− ion. This anion remains predominant for several hours at room temperature in D2O, but its signals are progressively replaced by those of a monoaqua [RuCl3(D2O)Im2] complex. Over a period of days, two new sets of peaks appear, corresponding to two isomers of [RuCl2(D2O)2Im2]+. The same behaviour is observed for the 1-methyl-and 4-methylimidazole analogues. These reactions can be driven backwards by addition of KCl, but [RuCl4Im2]− is not quantitatively regenerated in solution even for 6 M NaCl. Within several months, the [RuCl2(D2O)2Im2]+ isomers further aquate to a single species [RuCl(D2O)3Im2]2+. In CD3OD, displacement of the first chloride of [RuCl4Im2]− takes place faster, over several hours, but substitution stops at the [RuCl3(CD3OD)Im2] stage. In DMSO, substitution occurs very slowly. The [RuCl3(DMSO)Im2]:[RuCl4Im2]−mixture (1:2) obtained after 12 days starts to show very slow reduction to two Ru(II) species, one of which precipitates as yellow crystals. From X-ray diffraction work (monoclinic, P21/n, a = 9.951, b = 8.564, c = 10.527 Å, β = 92.95°, R = 0.033), the compound was identified as [RuCl2(DMSO-d6)2Im2], where the metal has a trans-trans-trans coordination and the DMSO ligands are S-bonded. Keywords: paramagnetic ruthenium anion, solvolysis, chloro complexes.

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