19F High Magnetic Field NMR Study of β-ZrF4and CeF4:  From Spectra Reconstruction to Correlation between Fluorine Sites and19F Isotropic Chemical Shifts

2006 ◽  
Vol 45 (26) ◽  
pp. 10636-10641 ◽  
Author(s):  
C. Legein ◽  
F. Fayon ◽  
C. Martineau ◽  
M. Body ◽  
J.-Y. Buzaré ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Magnetic Field ◽  
Chemical Shifts ◽  
Nmr Study ◽  
Isotropic Chemical Shifts

scholarly journals A 195Pt NMR study on zero-magnetic-field splitting and the phosphorescence properties in the excited triplet states of cyclometalated platinum(ii) complexes

2020 ◽  
Vol 49 (19) ◽  
pp. 6363-6367
Author(s):  
Soichiro Akagi ◽  
Sho Fujii ◽  
Noboru Kitamura
Keyword(s):  
Magnetic Field ◽  
Metal Complexes ◽  
Chemical Shifts ◽  
Zero Magnetic Field ◽  
Triplet States ◽  
Field Splitting ◽  
Excited Triplet ◽  
Nmr Chemical Shifts ◽  
Nmr Study ◽  
Excited Triplet States

The strength of zero-magnetic-field splitting in the excited triplet states of metal complexes is reflected in the metal NMR chemical shifts.

NMR study of the high magnetic field incommensurate phase of the CuGeO3 spin-Peierls system

1998 ◽  
Vol 246-247 ◽  
pp. 22-26 ◽  
Author(s):  
M. Horvatić ◽  
C. Berthier ◽  
Y. Fagot-Revurat ◽  
N. Piegay ◽  
M.E. Hanson ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Magnetic Field ◽  
Incommensurate Phase ◽  
Nmr Study

A solid-state 17O NMR study of platinum-carboxylate complexes: carboplatin and oxaliplatin

2015 ◽  
Vol 93 (9) ◽  
pp. 945-953 ◽  
Author(s):  
Xianqi Kong ◽  
Victor Terskikh ◽  
Abouzar Toubaei ◽  
Gang Wu
Keyword(s):  
Solid State ◽  
Chemical Shifts ◽  
Lone Pair ◽  
Carboxylate Oxygen ◽  
Carboxylate Groups ◽  
Nmr Study ◽  
Nmr Characterization ◽  
Orbital Electron ◽  
Isotropic Chemical Shifts ◽  
Oxygen Atoms

We report synthesis and solid-state NMR characterization of two 17O-labeled platinum anticancer drugs: cis-diammine(1,1-cyclobutane-[17O4]dicarboxylato)platinum(II) (carboplatin) and ([17O4]oxalato)[(1R, 2R)-(−)-1,2-cyclohexanediamine)]platinum(II) (oxaliplatin). Both 17O chemical shift (CS) and quadrupolar coupling (QC) tensors were measured for the carboxylate groups in these two compounds. With the aid of plane wave DFT computations, the 17O CS and QC tensor orientations were determined in the molecular frame of reference. Significant changes in the 17O CS and QC tensors were observed for the carboxylate oxygen atom upon its coordination to Pt(II). In particular, the 17O isotropic chemical shifts for the oxygen atoms directly bonded to Pt(II) are found to be smaller (more shielded) by 200 ppm than those for the non-Pt-coordinated oxygen atoms within the same carboxylate group. Examination of the 17O CS tensor components reveals that such a large 17O coordination shift is primarily due to the shielding increase along the direction that is within the O=C–O–Pt plane and perpendicular to the O–Pt bond. This result is interpreted as due to the σ donation from the oxygen nonbonding orbital (electron lone pair) to the Pt(II) empty dyz orbital, which results in large energy gaps between σ(Pt–O) and unoccupied molecular orbitals, thus reducing the paramagnetic shielding contribution along the direction perpendicular to the O–Pt bond. We found that the 17O QC tensor of the carboxylate oxygen is also sensitive to Pt(II) coordination, and that 17O CS and QC tensors provide complementary information about the O–Pt bonding.

ChemInform Abstract: NMR Study of the High Magnetic Field Incommensurate Phase of the CuGeO3 Spin-Peierls System

ChemInform ◽  
2010 ◽  
Vol 29 (43) ◽  
pp. no-no
Author(s):  
M. HORVATIC ◽  
C. BERTHIER ◽  
Y. FAGOT-REVURAT ◽  
N. PIEGAY ◽  
M. E. HANSON ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Magnetic Field ◽  
Incommensurate Phase ◽  
Nmr Study

NMR Study of YbAl3C3in High Magnetic Field

2008 ◽  
Vol 77 (Suppl.A) ◽  
pp. 291-293 ◽  
Author(s):  
Satoru Tomisawa ◽  
Takeshi Mito ◽  
Shinji Wada ◽  
Kenjiro Hashi ◽  
Tadashi Shimizu ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Magnetic Field ◽  
Nmr Study

NMR study of a CeB6 single crystal in high magnetic field

1983 ◽  
Vol 31-34 ◽  
pp. 415-416 ◽  
Author(s):  
M. Kawakami ◽  
H.G. Bohn ◽  
H. Lütgemeier ◽  
S. Kunii ◽  
T. Kasuya
Keyword(s):  
Magnetic Field ◽  
Single Crystal ◽  
High Magnetic Field ◽  
Nmr Study

139La-NMR Study on La-based High-TcCuprates La2-xMxCuO4(M=Sr, Ba) aroundx=0.115 under High Magnetic Field

1997 ◽  
Vol 66 (9) ◽  
pp. 2870-2874 ◽  
Author(s):  
Takayuki Goto ◽  
Kaichiro Chiba ◽  
Masakatsu Mori ◽  
Takao Suzuki ◽  
Katsutoshi Seki ◽  
...  
Keyword(s):  
Magnetic Field ◽  
High Magnetic Field ◽  
Nmr Study

Hydrogen-like excitons in a high magnetic field

2000 ◽  
Vol 10 (PR5) ◽  
pp. Pr5-311-Pr5-314
Author(s):  
M. A. Liberman
Keyword(s):  
Magnetic Field ◽  
High Magnetic Field
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