Results 41 to 50 of about 167,233 (404)
ChemistryOpen, 2019 The performance of density functionals and wavefunction methods for describing the thermodynamics and kinetics of hydride reductions of 2‐substituted cyclohexanones has been evaluated for the first time.
Xavier Deraet +5 more
doaj +1 more source
Two Metals Are Better Than One in the Gold Catalyzed Oxidative Heteroarylation of Alkenes [PDF]
, 2011 We present a detailed study of the mechanism for oxidative heteroarylation, based on DFT calculations and experimental observations. We propose binuclear Au(II)–Au(II) complexes to be key intermediates in the mechanism for gold catalyzed oxidative ...
Benitez, Diego +4 more
core +2 more sources
DAG tales: the multiple faces of diacylglycerol—stereochemistry, metabolism, and signaling
Cellular and Molecular Life Sciences, 2015 The neutral lipids diacylglycerols (DAGs) are involved in a plethora of metabolic pathways. They function as components of cellular membranes, as building blocks for glycero(phospho)lipids, and as lipid second messengers.
Thomas O. Eichmann, A. Lass
semanticscholar +1 more source
Quiralidade em moléculas e cristais Chirality at molecules and crystals
Química Nova, 2009 The present contribution describes some concepts of stereochemistry and chirality in molecules and crystals. This paper also reports on the development of a simple and fast experiment to prepare and recognize conglomerate and true racemate of tartaric ...
Ayres Guimarães Dias +1 more
doaj +1 more source
Antiferromagnetic coupling and enhanced magnetization in all-ferromagnetic superlattices [PDF]
Appl. Phys. Lett. 88 (2006) 192509, 2006 The structural and magnetic properties of a series of superlattices consisting of two ferromagnetic metals La$_{0.7}$Sr$_{0.3}$MnO$_3$ (LSMO) and SrRuO$_3$ (SRO) grown on (001) oriented SrTiO$_3$ are studied. Superlattices with a fixed LSMO layer thickness of 20 unit cells (u.c.) and varying SRO layer thickness show a sudden drop in magnetization on ...
arxiv +1 more source
Anharmonicity-driven Rashba co-helical excitons break quantum efficiency limitation [PDF]
Adv. Mater. (2020), 2005400, 2020 Closed-shell light-emitting diodes (LEDs) suffer from the internal quantum efficiency (IQE) limitation imposed by optically inactive triplet excitons. Here we show an undiscovered emission mechanism of lead-halide-perovskites (LHPs) APbX$_3$ (A=Cs/CN$_2$H$_5$; X=Cl/Br/I) that circumvents the efficiency limit of closed-shell LEDs.
arxiv +1 more source
Applied Sciences, 2019 The present survey concentrates on pharmacodynamics and pharmacokinetics of selected β-adrenergic blockers from the point of view of their stereochemistry. It could be shown that the activity in the arylaminoethanol and aryloxyaminopropanol group of
Ružena Čižmáriková +3 more
doaj +1 more source
Stereodynamic control of overlapping resonances in cold molecular collisions [PDF]
Phys. Rev. Research 2, 032018 (2020), 2020 Stereodynamic control of resonant molecular collisions has emerged as a new frontier in cold molecule research. Recent experimental studies have focused on weakly interacting molecular systems such as HD collisions with H$_2$, D$_2$ and He. We report here the possibility of such control in strongly interacting systems taking rotational relaxation in ...
arxiv +1 more source
Chiroptical studies on brevianamide B : vibrational and electronic circular dichroism confronted [PDF]
, 2015 Chiroptical spectroscopy, such as electronic circular dichroism (ECD) and vibrational circular dichroism (VCD) are highly sensitive techniques to probe molecular conformation, configuration, solvation and aggregation.
Bultinck, Patrick +7 more
core +2 more sources