Results 61 to 70 of about 568,615 (320)
Overhauser enhanced liquid state nuclear magnetic resonance spectroscopy in one and two dimensions
Nature CommunicationsNuclear magnetic resonance (NMR) is fundamental in the natural sciences, from chemical analysis and structural biology, to medicine and physics. Despite its enormous achievements, one of its most severe limitations is the low sensitivity, which arises ...
Marcel Levien +10 more
doaj +1 more source
Presence of 3d Quadrupole Moment in LaTiO3 Studied by 47,49Ti NMR
, 2003 Ti NMR spectra of LaTiO3 are reexamined and the orbital state of this compound is discussed. The NMR spectra of LaTiO3 taken at 1.5 K under zero external field indicate a large nuclear quadrupole splitting.
A. Abragam +6 more
core +1 more source
Recent Progress in Liquid State Electrochemistry Coupled with NMR Spectroscopy
ChemElectroChem, 2021 AbstractAnalytical methods of electrochemistry (EC) are relatively inexpensive, and widely used in science, industry, and medicine. Although EC is distinguished by its high sensitivity, it does not provide direct and detailed data about the bond connectivity or dynamics of the molecular system.
Mariusz Pietrzak +5 more
openaire +1 more source
Advanced Functional Materials, EarlyView.This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies +8 more
wiley +1 more source
Chinese Journal of Magnetic Resonance, 2018 4-Amino-5-chloro-2,3-dihydro-N-[1-(3-methoxypropyl)-4-piperidinyl]-7-benzofurancarboxamide was synthesized by amide condensation reaction using 4-amino-5-chloro-2,3-dihydrobenzofuran-7-carboxylic acid and 1-(3-methoxypropyl)- 4-piperidinamine as the ...
ZHOU Zhong-gao +4 more
doaj +1 more source
Superconductivity of non-Fermi liquids described by Sachdev-Ye-Kitaev models
Physical Review Research, 2023 We investigate models of electrons in the Sachdev-Ye-Kitaev class with random and all-to-all electron hopping, electron spin exchange, and Cooper-pair hopping.
Chenyuan Li +2 more
doaj +1 more source
Electroactive Metal–Organic Frameworks for Electrocatalysis
Advanced Functional Materials, EarlyView.Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska +7 more
wiley +1 more source
Interactions Between 5-Fluorouracil and PAMAM Dendrimers Studies by NMR Spectroscopy
Chinese Journal of Magnetic Resonance, 2019 Interactions between 5-fluorouracil (5-FU) and PAMAM in D2O solution were studied by NMR spectroscopy. The results of 1H NMR chemical shift titration experiments demonstrated that 5-FU molecules bonded to the surface of PAMAM, and the results of 13C NMR ...
NING Cai-fang +5 more
doaj +1 more source
, 1997 We present an extensive NMR study of the spin-1/2 antiferromagnetic Heisenberg ladder Cu2(C5H12N2)2Cl4 in a magnetic field range 4.5 - 16.7 T. By measuring the proton NMR relaxation rate 1/T_1 and varying the magnetic field around the critical field H_c1
A. V. Chubukov +38 more
core +1 more source
Spin dynamics and disorder effects in the S=1/2 kagome Heisenberg spin liquid phase of kapellasite [PDF]
, 2014 We report $^{35}$Cl NMR, ESR, $\mu$SR and specific heat measurements on the $S=1/2$ frustrated kagom\'e magnet kapellasite, $\alpha-$Cu$_3$Zn(OH)$_6$Cl$_2$, where a gapless spin liquid phase is stabilized by a set of competing exchange interactions.
Amato, A. +12 more
core +2 more sources