Ultrafast 2D-IR vibrational echo experiments, IR pump-probe experiments, and FT-IR spectroscopy of the hydroxyl stretch of phenol-OD in three solvents, CCl4, mesitylene (1, 3, 5 trimethylbenzene), and the mixed solvent of mesitylene and CCl4 (0.83 mole fraction CCl4), are used to study solute-solvent dynamics via observation of spectral diffusion. Phenol forms a complex with Mesitylene. In the ...

Implicit solvent models for biomolecular simulations are reviewed and their underlying statistical mechanical basis is discussed. The fundamental quantity that implicit models seek to approximate is the solute potential of mean force, which determines the statistical weight of solute conformations, and which is obtained by averaging over the solvent degrees of freedom. It is possible to express...

The ability of a solute (inorganic or organic) to distribute itself between an aqueous solution and an immiscible organic solvent has long been applied to separation and purification of solutes either by extraction into the organic phase, leaving undesirable substances in the aqueous phase; or by extraction of the undesirable substances into the organic phase, leaving the desirable solute in th...

Over recent years the electronics manufacturing industry has seen a shift away from wave soldering towards reflow soldering [1]. However, although wave soldering is indeed mature (first used during the 1950’s [eg 2]), there is still significant activity with novel process development to match [3]. This paper concerns a new type of noclean liquid flux for wave soldering that is based on water [4...

the interaction of biomolecules with carbon nanotubes (cnts) has generated a great deal ofinterest in the past few years. the interaction between b-form single-strand dna (ssdna) andsingle-walled carbon nanotubes (swcnts) is a subject of intense current interest; however thereare a relatively small number of papers in the literature dealing with interaction of dna andswcnts. in this work we inv...

2 3 3 3 2 Na[BH(C H N ) ]·solvent (solvent = H O, DMF, IPA) crystallize as a porous framework with the distorted primitive cubic (pcu) topology. Solvent molecules occupy the framework pores. The solvent of crystallization can be removed by heating. Isothermal thermogravimetric analysis shows that solvent loss is consistent with a 1-D diffusion mechanism. Variable temperature powder X-ray diffra...

p2o5-sio2 (30% w/w) was found to be a useful catalyst for the synthesis of various 2-substituted aryl benzimidazoles under solvent-less and in solvent conditions from o-phenylenediamine and aldehydes. the products were directly recrystallized from methanol.

1,3-butadiene, bd is produced from c4-cut by extractive distillation. the separation of 1,3-butadiene from c4-cut is not possible through the conventional distillation processes, because several mixtures have consisted of close boiling points constituents and make azeotrope. the basf extraction distillation process in bd unit of jam and amirkabir petrochemical company improves the relative vola...

We present a physically rigorous method to calculate solvent-dependent accessible surface areas (ASAs) of amino acid residues in unfolded proteins. ASA values will be larger in a good solvent, where solute-solvent interactions dominate and promote chain extension. Conversely, they will be smaller in a poor solvent, where solute-solute interactions dominate and promote chain collapse. In the met...