Results 91 to 100 of about 32,686 (305)

Effect of 2-Substitution on the Rearrangement of 1-Cyclopropylvinyl Cations [PDF]

open access: yes, 1973
2-Substitution in 1-cyclopropylvinyl cations produces a steric effect on cation generation and solvent trapping, but an electronic charge-stabilizing effect on cyclopropyl-to-cyclobutyl ...
Bergman, Robert G., Kelsey, Donald R.
core   +1 more source

Complexation‐Mediated Diffusion‐Limited Crystal Growth: A General Framework for Anisotropic Crystal Growth in Cu‐Based Perovskites

open access: yesAdvanced Functional Materials, EarlyView.
A Complexation‐Mediated Diffusion‐Limited Growth (CMDLG) framework is established to rationalize the anisotropic growth of lead‐free perovskites. Integrating coordination chemistry with mass transport kinetics, this study theoretically derives and experimentally validates that stable iodocuprate complexes induce a diffusion‐limited regime.
Hyunmin Lee   +5 more
wiley   +1 more source

Visible light-mediated difluoroalkylation of electron-deficient alkenes

open access: yesBeilstein Journal of Organic Chemistry, 2018
A method for the reductive difluoroalkylation of electron-deficient alkenes using 1,1-difluorinated iodides mediated by irradiation with blue light is described.
Vyacheslav I. Supranovich   +4 more
doaj   +1 more source

Modeling the hydrolysis of perfluorinated compounds containing carboxylic and phosphoric acid ester functions, alkyl iodides, and sulfonamide groups [PDF]

open access: yes, 2009
Temperature dependent rate constants were estimated for the acid- and base-catalyzed and neutral hydrolysis reactions of perfluorinated telomer acrylates (FTAcrs) and phosphate esters (FTPEs), and the SN1 and SN2 hydrolysis reactions of fluorotelomer ...
Kaya Forest, Sierra Rayne
core   +1 more source

Synthesis of novel room temperature chiral ionic liquids. application as reaction media for the heck arylation of aza-endocyclic acrylates. [PDF]

open access: yes, 2010
New achiral and chiral RTILs were prepared using novel and/or optimized synthetic routes. These new series of imidazolinium, imidazolium, pyridinium and nicotine-derived ionic liquids were fully characterized including differential scanning calorimetry ...
Correia, Carlos R. D.   +4 more
core   +4 more sources

Iodide-Induced Thyrotoxicosis

open access: yesMedicine, 1983
Iodide-induced thyrotoxicosis (IIT) occurs in patients with: 1) endemic goiter; 2) nonendemic goiter; 3) no previous thyroid disease. Iodine prophylaxis for endemic goiter caused transient increase of 0.01-0.04% over the basal incidence of hyperthyroidism peaking at 1-3 years and normalizing in 3-10 years despite continued iodide exposure.
J E, Fradkin, J, Wolff
openaire   +2 more sources

Parallel 3D Bioprinting on SLIPS‐Microarrays

open access: yesAdvanced Functional Materials, EarlyView.
This work introduces the first truly parallel 3D bioprinting method, enabling both the simultaneous fabrication of hundreds of cell laden hydrogel 3D structures and their HTS in individual liquid compartments. By integrating Digital Light Processing (DLP) stereolithography with functional micropatterns, the platform decouples printing time from array ...
Julius von Padberg   +3 more
wiley   +1 more source

Conversion of Aryl Iodides into Aryliodine(III) Dichlorides by an Oxidative Halogenation Strategy Using 30% Aqueous Hydrogen Peroxide in Fluorinated Alcohol

open access: yesMolecules, 2010
Oxidative chlorination with HCl/H2O2 in 1,1,1-trifluoroethanol was used to transform aryl iodides into aryliodine(III) dihalides. In this instance 1,1,1-trifluoroethanol is not only the reaction medium, but is also an activator of hydrogen peroxide for ...
Ajda Podgoršek, Jernej Iskra
doaj   +1 more source

7-Aminoheptylazanium iodide [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2011
The absolute structure of the title compound, [H(3)N-(CH(2))(7)-NH(2)]I, has been determined from the diffraction experiment, the Flack parameter refining to −0.02 (2). In the crystal, adjacent symmetry-related cations are connected by head-to-tail R′H(2)N(+)—H⋯NH(2) R hydrogen bonds, forming chains along [010].
openaire   +2 more sources

Meniscus Pixel Printing for Contact‐Lens Vision Sensing and Robotic Control

open access: yesAdvanced Functional Materials, EarlyView.
A visual‐sensing contact lens is enabled by meniscus pixel printing (MPP), which rapidly patterns a 200 µm perovskite photodetector pixel in 1 s without masks, vacuum processing, or bulky equipment. A deep‐learning‐based super‐resolution reconstructs sparse on‐lens signals into 80 × 80 high‐resolution visual information, while AI‐driven eye‐tracking ...
Byung‐Hoon Gong   +7 more
wiley   +1 more source

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