نتایج جستجو برای: solvent non solvent

تعداد نتایج: 1366712  

Journal: :The Journal of chemical physics 2010
Jonathan T Su P Brent Duncan Amit Momaya Arimatti Jutila David Needham

While the Stokes-Einstein (SE) equation predicts that the diffusion coefficient of a solute will be inversely proportional to the viscosity of the solvent, this relation is commonly known to fail for solutes, which are the same size or smaller than the solvent. Multiple researchers have reported that for small solutes, the diffusion coefficient is inversely proportional to the viscosity to a fr...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2011
Hossein Ali Mashayekhi Mohammad Rezaee Shirin Sadeghi Garmaroudi Naser Montazeri Seyed Javad Ahmadi

A rapid and sensitive method has been developed for the determination of benzaldehyde, a toxic oxidation product of the widely used preservative and co-solvent benzyl alcohol in injectable formulations of non-steroidal anti-inflammatory drugs, diclofenac, vitamin B-complex and Voltaren injection solutions by using dispersive liquid-liquid microextraction followed by gas chromatography. This met...

Journal: :iranian journal of catalysis 2015
seyyedeh cobra azimi

a green and efficient one pot, three component protocol for synthesis of naphthopyranopyrimidines by cyclocondensation of β-naphthol, aldehyde, and 6-amino-1,3-dimethyluracil using l-proline as a beneficial catalyst with high catalytic activity under solvent-free conditions at 100 °c is described. in this study, several types of aromatic aldehyde, containing electron-withdrawing groups as well ...

Journal: :Chemical communications 2013
Qing Wu Teng Su Yanjie Mao Qigang Wang

We describe the preparation of a thermoresponsive microgel, which can non-covalently immobilize active proteins with enhanced biocatalytic performance in organic solvents and easy reusability due to the porous microstructure and temperature responsive property.

Journal: :Dalton transactions 2011
Simon A Barrett Colin A Kilner Malcolm A Halcrow

The temperature of spin-crossover in [Fe(3-bpp)(2)][BF(4)](2) (3-bpp = 2,6-di{pyrazol-3-yl}pyridine) tends to increase in associating solvents. In particular, T(½) shifts to 60-70 K higher temperature in water compared to organic solvents.

Journal: :Chemical communications 2010
Puhong Liao Brian W Langloss Amber M Johnson Eric R Knudsen Fook S Tham Ryan R Julian Richard J Hooley

A self-assembled M(2)L(4) palladium-pyridyl cluster with a "paddle-wheel" structure shows binding affinity in competitive organic solvents for neutral organic guests that possess both the correct size and electrostatic complementarity.

2011
Sikandar Y. Mashayak David E. Tanner

Discrete nature of water plays critical role in protein folding and thermodynamics. Explicit all-atom modeling of solvent severely limits the length and time scales of molecular dynamics simulations of protein. In this project, we evaluated accuracy and computational efficiency of four different solvent models, all-atom solvent models ( SPC/E and TIP3P ), Generalized Born Implicit Solvent, and ...

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