Results 11 to 20 of about 486,719 (268)

Hyperpolarizabilities of Push–Pull Chromophores in Solution: Interplay between Electronic and Vibrational Contributions

open access: yesMolecules, 2022
Contemporary design of new organic non-linear optical (NLO) materials relies to a large extent on the understanding of molecular and electronic structure–property relationships revealed during the years by available computational approaches. The progress
Tomáš Hrivnák   +3 more
doaj   +1 more source

Solvent Effects on the Menshutkin Reaction

open access: yesThe Journal of Physical Chemistry B, 2022
The Menshutkin reaction is a methyl transfer reaction relevant in fields ranging from biochemistry to chemical synthesis. In the present work, energetics and solvent distributions for NH$_{3}$+MeCl and Pyr+MeBr reactions were investigated in the gas-phase, in water, methanol, acetonitrile, benzene, and in cyclohexane by means of reactive molecular ...
Haydar Taylan Turan   +2 more
openaire   +4 more sources

Calculation of the stability constants for the complex formation of dioxovanadium (V) with methyliminodiacetic acid in various H2O + CH3OH solutions using kamlet-abboud-taft equation [PDF]

open access: yesJournal of the Serbian Chemical Society, 2013
The stability constants for the complex formation of VO2+ cation with methyliminodiacetic acid (MIDA) have been determined in this research for various volume fractions of methanol (0-45% v/v) at T = 298 K, I = 0.1 mol dm-3 of sodium perchlorate.
Majlesi Kavosh   +4 more
doaj   +1 more source

Gutmann’s Donor and Acceptor Numbers for Ionic Liquids and Deep Eutectic Solvents

open access: yesFrontiers in Chemistry, 2022
An experimental and computational methodology for the analysis of the Lewis acid/base responses of ionic liquids (ILs) and deep eutectic solvents (DES) is proposed.
Bruno Sanchez   +2 more
doaj   +1 more source

Solvent effects on the photooxidation of indolepyrazines

open access: yesPhotochemical & Photobiological Sciences, 2022
AbstractPhotodestruction of 2-(pyrazin-2′-yl)-1H-indole and 2,5-di(1H-indol-2′-yl)pyrazine involves singlet oxygen generation and its rapid insertion into the indole ring with the formation of benzoxazinone derivatives: 2-(pyrazin-2-yl)-4H-3,1-benzoxazin-4-one and 2-[5-(1H-indol-2-yl)pyrazin-2-yl]-4H-3,1-benzoxazin-4-one.
Barbara Golec   +4 more
openaire   +2 more sources

Solvolysis kinetic study and direct spectrofluorimetric analysis of the fungicide benomyl in natural waters

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2014
A direct spectrofluorimetric method for the quantitative analysis of benomyl in natural waters is described. Benomyl is an instable, fluorescent fungicide that mainly decomposes into carbendazim and n-butyl-isocyanate in organic and aqueous solutions ...
Diène Diègane Thiare   +8 more
doaj   +1 more source

Catalytic Approaches to Multicomponent Reactions: A Critical Review and Perspectives on the Roles of Catalysis

open access: yesMolecules, 2021
In this review, we comprehensively describe catalyzed multicomponent reactions (MCRs) and the multiple roles of catalysis combined with key parameters to perform these transformations.
Brenno A. D. Neto   +2 more
doaj   +1 more source

Solvent Effects in Molecular Recognition. [PDF]

open access: yesActa Chemica Scandinavica, 1990
Abstract
D. B. Smithrud   +7 more
openaire   +1 more source

Ability of Lewis Acids with Shallow σ-Holes to Engage in Chalcogen Bonds in Different Environments

open access: yesMolecules, 2021
Molecules of the type XYT = Ch (T = C, Si, Ge; Ch = S, Se; X,Y = H, CH3, Cl, Br, I) contain a σ-hole along the T = Ch bond extension. This hole can engage with the N lone pair of NCH and NCCH3 so as to form a chalcogen bond.
Rafał Wysokiński   +3 more
doaj   +1 more source

Solvent Effects on the Spin-Transition in a Series of Fe(II) Dinuclear Triple Helicate Compounds

open access: yesCrystals, 2018
This work explores the effect of lattice solvent on the observed solid-state spin-transition of a previously reported dinuclear Fe(II) triple helicate series 1–3 of the general form [FeII2L3](BF4)4(CH3CN)n, where L is the Schiff base condensation ...
Alexander R. Craze   +5 more
doaj   +1 more source

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