Results 41 to 50 of about 494,170 (294)
www.nmrdb.org: Resurrecting and Processing NMR Spectra On-line
CHIMIA, 2008 NMR spectroscopy is certainly the analytical methodology that provides the most information about a molecule but the long-term vision of this information is often lacking. We present here two innovative tools accessible free from the web.
Damiano Banfi, Luc Patiny
doaj +1 more source
Multidimensional Profiling of MRI‐Negative Temporal Lobe Epilepsy Uncovers Distinct Phenotypes
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Although hippocampal sclerosis (TLE‐HS) represents the most frequent cause of temporal lobe epilepsy (TLE), up to 30% of patients show no lesion on visual MRI inspection (TLE‐MRIneg). These cases pose diagnostic and therapeutic challenges and are underrepresented in surgical series.
Alice Ballerini +28 more
wiley +1 more source
Magnetization profiles and NMR spectra of doped Haldane chains at finite temperatures
, 2000 Open segments of S=1 antiferromagnetic spin chains are studied at finite temperatures and fields using continuous time Quantum Monte Carlo techniques. By calculating the resulting magnetization profiles for a large range of chain lengths with fixed field
A. P. Ramirez +43 more
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The Journal of the Society of Chemical Industry, Japan, 1965 α-グリコールの異性体のNMRスペクトルをとった結果,その水酸基の立体配置によって水酸基のプロトンの化学シフトに差が現われた。すなわち,常温で液体のα-グリコールでは,その水酸基のプロトンのシグナルはエリスロ体またはトランス体がスレオ体またはシス体より低磁場に現われた。この傾向は塩基性溶媒,ピリジンを溶媒とした時にも見られた。酸性溶媒を用いた場合には水酸基のプロトンはカルボキシル基のプロトンとexchangeして, 1本のconcetra-tion shiftを示すが, やはり水酸基のプロトンの挙動は塩基性溶媒の場合と同じであった。しかし, 5 員環化合物では酸の濃度が高いとき,異性体間の傾向が逆になることを見出した。
Yasuhisa SENDA +2 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger +11 more
wiley +1 more source
A Solid State \u3csup\u3e13\u3c/sup\u3eC-NMR Study of Diamonds and Graphites [PDF]
, 1978 The 13C-NMR spectra of gem quality and industrial diamonds show two resonances with the more intense resonance at high field. Two resonances are also shown in 13C-NMR spectra of various graphites; however, the low field resonance is of greater intensity ...
Ehlert, Thomas C. +2 more
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Phonon effects on x-ray absorption and nuclear magnetic resonance spectroscopies
, 2015 In material sciences, spectroscopic approaches combining ab initio calculations with experiments are commonly used to accurately analyze the experimental spectral data.
Bordage, Amélie +7 more
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Interpreting 2D-NMR spectra using Grad-CAM [PDF]
Research Ideas and OutcomesIt has been shown that it is possible to train a (simple) neural network to classify nuclear magnetic resonance spectra by a substructures either being part of the chemical structure measured or not.
Enriko Kroon +3 more
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Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions
Advanced Functional Materials, EarlyView.DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng +7 more
wiley +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