Results 101 to 110 of about 9,364,265 (259)

Influence of Nitrogen Bases on Epoxidation of Cyclooctene with Sodium Periodate Catalysed by Manganese(III) Porphyrins [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 1999
Effects of imidazoles and substituted pyridines and pure s-donors on the oxidation of cyclooctene with NaIO4 by 5,10,15,20-tetraphenylporphyrinato-manganese(III) acetate, Mn(TPP)OAc, and 5,10,15,20-Tetramesitylporphyrinato-manganese(III) acetate, Mn(TMP ...
Daryoush Mohajer, Reza Tayebee
doaj  

Electrochemical Formation and Dimerization of α-Substituted Benzyl Radicals. Steric Effects on Dimerization

open access: yes, 2016
Electrochemical Formation and Dimerization of α-Substituted Benzyl Radicals.
John M. Porter (3036159)   +2 more
core   +1 more source

Reversible Tuning of Multiple Molecular Kinking for Stem Cell Regulation In Vivo

open access: yesAdvanced Functional Materials, EarlyView.
In this work, we introduce the novel concept of background component‐free “multiple kinks” material platform composed solely of liganded multiple kink‐bearing molecules as a strategy for dynamic biomaterial design. Tri‐kink molecules enable effective near‐infrared light‐triggered ligand masking and visible light‐triggered ligand exposure, thereby ...
Kanghyeon Kim   +28 more
wiley   +1 more source

Steric and Electronic Effects in the Enzymatic Catalysis of Choline-TMA Lyase

open access: yesBiomolecules
An important microbial enzymatic pathway in the gut is choline/phosphatidylcholine degradation in which intestinal microbes utilize dietary choline to produce TMA via the choline utilization cluster polypeptide C (CutC) enzyme, a member of the glycyl ...
Valentin Gogonea, Stanley L. Hazen
doaj   +1 more source

Importance of Steric Effects in the Photochemical Ring Opening of Isochromenes

open access: yes, 2016
Importance of Steric Effects in the Photochemical Ring Opening of ...
Nigel G. J. Richards (1307565)   +1 more
core   +1 more source

Multistage, Self‐Sensing Artificial Muscles With Coordination From Liquid Crystal Elastomer‐Graphene Composite Fibers

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by skeletal muscles’ precision and endurance, CoilLCE integrates a self‐sensing liquid crystal elastomer/graphene artificial muscle with an embedded Joule‐heating copper coil, enabling closed‐loop multistage actuation with programmable intermediate states (strain accuracy of 2%), and antagonistic coordination (32% total strain). These features
Ziyun Zhang   +9 more
wiley   +1 more source

High‐Efficiency Deep Blue Single‐Gaussian Europium(II) Emitters and Their Emitter‐Host Interactions

open access: yesAdvanced Functional Materials, EarlyView.
Crown‐ether ligands and carborate anions enable vacuum‐processable Eu(II) emitters with efficient single‐Gaussian deep‐blue luminescence. Combined photophysical and computational analyses reveal that excited‐electron confinement and steric shielding of the europium center jointly govern compatibility with OLED host materials, establishing molecular ...
Mahmoud Soleimani   +8 more
wiley   +1 more source

Microwave-Assisted Synthesis of 1-(5-Substituted-4-hydroxy-2-methyl-1H-pyrrol-3-yl)ethan-1-ones from 2-Amino Acid-Derived Enamine-Type Schiff Bases

open access: yesMolbank
Pyrrole-type compounds are widely known for their potential biological activity. However, methods for synthesizing 2,3,4,5-tetrasubstituted pyrroles remain limited.
Diego Quiroga   +2 more
doaj   +1 more source

A real space picture of the role of steric effects in SN 2 reactions. [PDF]

open access: yesJ Comput Chem, 2022
Gallegos M   +2 more
europepmc   +1 more source

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