Results 41 to 50 of about 12,878 (240)

Unravelling the photoprotection properties of mycosporine amino acid motifs [PDF]

open access: yes, 2018
Photoprotection from harmful ultraviolet (UV) radiation exposure is a key problem in modern society. Mycosporine like amino acids found in fungi, cyanobacteria, macroalgae, phytoplankton and humans, are already presenting a promising form of natural ...
Horbury, Michael D.   +5 more
core   +2 more sources

Solvatochromism studies on UV spectra of 4,5-disubstituted-1,2,4-triazoline-3-thiones

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2012
The influence of a series of organic solvents on the UV spectra of investigated 1,2,4-triazoles, was studied by implementing solvatochromic theory.
Vesna B. Dimova   +1 more
doaj   +1 more source

Exfoliation solvent dependent plasmon resonances in two-dimensional sub-stoichiometric molybdenum oxide nanoflakes [PDF]

open access: yes, 2016
Few-layer two-dimensional (2D) molybdenum oxide nanoflakes are exfoliated using a grinding assisted liquid phase sonication exfoliation method. The sonication process is carried out in five different mixtures of water with both aprotic and protic ...
Alsaif, M   +12 more
core   +2 more sources

How Accurate is the SMD Model for Predicting Free Energy Barriers for Nucleophilic Substitution Reactions in Polar Protic and Dipolar Aprotic Solvents

open access: yes, 2016
In the past seven years, the SMD (Solvent Model Density) method has been widely used by computational chemists. Thus, assessment on the reliability of this model for modeling chemical process in solution is worthwhile. In this report, it was investigated
Elizabeth L. M. Miguel   +3 more
semanticscholar   +1 more source

Dynamic interplay between defective UiO‐66 and protic solvents in activated processes [PDF]

open access: yes, 2019
UiO-66, composed by Zr-oxide inorganic bricks [Zr-6(mu(3)-O)(4)(mu(3)-OH)(4)] and organic terephthalate linkers, is one of the most studied metal-organic frameworks (MOFs) due to its exceptional thermal, chemical, and mechanical stability.
Caratelli, Chiara   +4 more
core   +2 more sources

Investigations of the reactivity of pyridine carboxylic acids with diazodiphenylmethane in protic and aprotic solvents. [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
Rate constants for the reaction of diazodiphenylmethane with isomeric pyridine carboxylic acids were determined in chosen protic and aprotic solvents at 30 °C, using the well known UV spectrophotometric method.
ALEKSANDAR D. MARINKOVIC   +3 more
doaj  

Thermodynamics of liquids: standard molar entropies and heat capacities of common solvents from 2PT molecular dynamics [PDF]

open access: yes, 2011
We validate here the Two-Phase Thermodynamics (2PT) method for calculating the standard molar entropies and heat capacities of common liquids. In 2PT, the thermodynamics of the system is related to the total density of states (DoS), obtained from the ...
Goddard, William A., III   +2 more
core   +2 more sources

Michael–type reactions of β-nitrostyrenes with piperidine: effect of solvents on reactivity and reaction mechanism [PDF]

open access: yes, 2014
Present report deals with the effect of solvent on the kinetics and mechanism of Michael-type reaction of ƒÒ-nitrostyrene with piperidine. Three different types of solvents are used for the study namely, nonpolar (chloroform, toluene, hexane), dipolar ...
Meher, Sameer Kumar, Sahu, Tushar Kanta
core  

Thermal stability and photochromic properties of a fluorinated indolylfulgimide in a protic and aprotic solvent [PDF]

open access: yesJournal of Photochemistry and Photobiology A: Chemistry, 2008
The photochromic properties and thermal stability of a newly synthesized fluorinated N-ethoxycarbonylmethyl indolylfulgimide substituted on the imide nitrogen were examined in a protic and aprotic environment. The absorption spectra and extinction coefficients of the Z- and C-forms of the fluorinated indolylfulgimide (open and closed, respectively ...
Nadezhda I, Islamova   +4 more
openaire   +2 more sources

Review of Thin Lithium Metal Battery Anode Fabrication – Microstructure – Electrochemistry Relations

open access: yesAdvanced Materials, EarlyView.
Thin, lightweight lithium‐metal anodes are pivotal for practical high‐energy batteries. This review surveys processing routes that convert diverse Li precursors, e.g., ingots, melts, solutions, and vapor, into Li‐rich foils with controlled thickness, areal density, and tailored functionality.
Yuhang Hu   +6 more
wiley   +1 more source

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