63Cu-NMR study on High-TcSuperconductor La2−xBaxCuO4
نویسندگان
چکیده
منابع مشابه
63Cu NMR spectroscopy of copper(I) complexes with various tridentate ligands: CO as a useful 63Cu NMR probe for sharpening 63Cu NMR signals and analyzing the electronic donor effect of a ligand.
63Cu NMR spectroscopic studies of copper(I) complexes with various N-donor tridentate ligands are reported. As has been previously reported for most copper(I) complexes, 63Cu NMR signals, when acetonitrile is coordinated to copper(I) complexes of these tridentate ligands, are broad or undetectable. However, when CO is bound to tridentate copper(I) complexes, the 63Cu NMR signals become much sha...
متن کاملCu - NMR Study in High
The 6 3 Cu nuclear transverse relaxation rates have been measured in the normal state on both square and pyramidal C u 0 2 planes in HgBa 2 Ca 2 Cu 3 O s + 8 with Tc = 133 K. The Gaussian component of the spin-echo decay rate, (1/T2G), for both sites increases with decreasing temperature, followed by a peak around T* ~ 150 K, indicating that the spin correlation becomes stronger with decreasing...
متن کاملChemical Shifts and Coupling Constants in Copper (I)-Compounds by 63Cu and 65Cu FT-NMR Studies
In recent years the technique of Nuclear Mag netic Resonance (NMR) has been successfully ap plied to heavier metals such as molybdenum [1 ], manganese [2] or vanadium [3]. Although this method is restricted to diamagnetic compounds, sufficient structural information can be obtained as demonstrated for the series of thiomolybdates Mo0 4 -nSn2(n = 0 — 4) (Ref. [1. 4]). This is espe cially true...
متن کاملA theoretical study on methamphetamine: geometry, energies, NMR and NBO
The methamphetamine has been studied theoretically at the MP2 [1]/6-31G[2] level in gas phase.Methamphetamine has been investigated Via NMR, Frequencies Calculation and NBO analysis. Thestructure of methamphetamine was designed primarily using of Chem. Bio Draw and it geometry hasbeen optimized at the MP2/6-31G computational level. The present work consists the study of themethamphetamine repor...
متن کاملA Theoretical Study on Dopamine: Geometry, energies and NMR
The Dopamine has been studied theoretically at the B3LYP/6-31G* level were performed in gasphase. We calculated physical parameters like atomic charges, energy (=>), asymmetry parameter(?), chemical shift @iso, dipole moment and isotropic NMR determinant and in this work we usedGaussian 03 at NMR and calculation by using B3LYP methods with 6-31G* basis set.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2011
ISSN: 1742-6596
DOI: 10.1088/1742-6596/302/1/012010