Results 101 to 110 of about 10,338 (283)

The Influence of Chromophore Structure on Intermolecular Interactions. A Study of Selected Rhodamines in Polar Protic and Aprotic Solvents [PDF]

open access: yes, 2020
We have studied the linear optical response and orientational relaxation dynamics of a family of rhodamine dyes in which there is substantial variation in the chromophore structure. For these chromophores, the identity of a substituent at the center ring
J L Dela Cruz, G J Blanchard
core  

Hidratação da 2,2,2-tricloro-1-feniletanona e derivados [PDF]

open access: yes, 1983
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Curso de Pós-Graduação em Físico ...
Silva, Mauro Baldez
core  

Combination of protic ionic liquid-like surfactant and biocompatible solvents to generate environmentally friendly anionic reverse micelles [PDF]

open access: yes, 2019
In the present work we have formulated environmentally friendly anionic reverse micelles (RMs) by the combination of a protic ionic liquid-like surfactant with biocompatible nonpolar solvents.
Dib, Nahir   +3 more
core   +1 more source

The State of the Art on PVDF Membrane Preparation for Membrane Distillation and Membrane Crystallization: Towards the Use of Non-Toxic Solvents

open access: yesMembranes
Most parts of the earth are covered with water, but only 0.3% of it is available to living beings. Industrial growth, fast urbanization, and poor water management have badly affected the water quality. In recent years, a transition has been seen from the
Aqsa Mansoor Khan   +5 more
doaj   +1 more source

Ring closing metathesis in protic media by means of a neutral and polar ruthenium benzylidene complex [PDF]

open access: yes, 2002
The ring closing olefine metathesis in protic solvents using a new ruthenium benzylidene complex is ...
Robert H. Grubbs   +3 more
core   +1 more source

The electrocatalytic cleavage of carbon-halide bonds on Ag and Au in protic solvents [PDF]

open access: yes, 2011
In the last years we have showed in detail how the electrocatalytic cleavage of carbon-halide bonds is modulated by (a) the stepwise or concerted nature of the DET mechanism, (as a function of the electrode surface, of the nature of the halogen atom, and
A. Gennaro   +3 more
core  

Biscarboxy-Functionalized Imidazole and Palladium as Highly Active Catalytic System in Protic Solvents: Methanol and Water [PDF]

open access: yes, 2014
The coupling reaction between aryl bromides and boron reagents is efficiently catalyzed by an in situ generated palladium complex obtained from palladium(II) acetate (0.1 mol%) and 1,3-bis(carboxymethyl)imidazole (0.2 mol%).
Martínez Flores, Regina   +3 more
core   +1 more source

IONIC LIQUIDS: PREPARATIONS AND LIMITATIONS

open access: yesMakara Seri Sains, 2010
Ionic liquids are considered as an ideal alternative to volatile organic solvents and chemical industries in the future,because they are non-volatile.
Dzulkefly Kuang Abdullah   +1 more
doaj  

Fluorescence and photostability studies of anthracene-9-carboxylic acid in different media

open access: yesInternational Journal of Photoenergy, 2000
Electronic absorption and fluorescence spectra of anthracene-9-carboxylic acid (ANCA) were studied in different homogeneous solvents, binary protic/aprotic solvent mixtures and in heterogeneous solutions of the cationic cetyltrimethyl ammonium bromide ...
M. S. A. Abdel-Mottaleb   +6 more
doaj   +1 more source

Exploring the optoelectronic properties of a chromene-appended pyrimidone derivative for photovoltaic applications

open access: yesOpen Chemistry, 2019
In the present study, a chromene-appended pyrimidone derivative (PBA) has been synthesized in order to account for the relationship between chemical structure and charge transport properties.
Assiri Mohammed A.
doaj   +1 more source

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