We have investigated the electrical double layer (EDL) structure at an interface between ionic liquid (IL) and charged surface using molecular dynamics simulations. We show that for three different models of ILs the EDL restructuring, driven by surface charging, can be rationalized by the use of two parameters--renormalized surface charge (κ) and charge excess in the interfacial layers (λ). Ana...

This paper deals with a Markovian queueing system having a multi-task service counters and finite queue in front of each counter. The total service of a customer is completed in three stages provided by two servers at three counters. The first server (S1) can serve the counter I and III alternatively, whereas second server (S2) provides the service at counter II. The server (S1) g ives the prio...

In the title compound, [Zn(CH(3)CN)(H(2)O)(5)](C(6)H(4)O(8)S(2))·3H(2)O, the Zn(II) ion lies on a mirror plane and is octa-hedrally coordinated by one acetonitrile ligand and five water mol-ecules. The 4,6-dihydroxy-benzene-1,3-disulfonate anion, acting as a counter-ion, is also located on the mirror plane. The crystal packing is stabilized by O-H⋯O hydrogen bonds, forming a three-dimensional s...

Line emission from excited state metal atoms (e.g., Na*) can be observed in sonoluminescence (SL) spectra when aqueous solutions containing metal salts, such as NaCl, are sonicated. With a view to understanding the metal ion reduction process, we have investigated the influence of various experimental parameters, such as, counter ions, dissolved gases, the presence of volatile solutes, ultrasou...

We present a large number of examples of sidechain interactions in which it appears at first that highly unfavorable positive charges are in close proximity. In particular, we examine pairs of arginines (resp., lysines) whose sidechain Cζ (resp., Nζ) atoms are very close. We screen PDB files to find such pairs for which there are no plausible counter ions. On the other hand, we show that invari...

Tit le Role of counter-ions in background electrolyte for the analysis of cat iongenic weak electrolytes and amino acids in neutral aqueous solut ions by capillary electrophoresis with electrokinet ic inject ion Author(s) Hattori, Takanari / Fukushi, Keiichi / Hirokawa, Takeshi Citat ion Journal of Chromatography A,1326:130-133 Issue date 2014-01-24 Resource Type Journal Art icle / 学術雑誌論文 Resou...

Two strategies for the synthesis of the ATP (adenosine triphosphate) analogue ApppI [1-adenosin-5'-yl 3-(3-methylbut-3-enyl)triphosphoric acid diester] (1) are described. ApppI is an active metabolite of the mevalonate pathway and thus is of major biological significance. Chemically synthezised ApppI was purified by using triethylammonium bicarbonate as the counter ion in ion-pair chromatograph...

The title compound, [Cu2(ClO4)(C14H13N2O)2(H2O)]ClO4, crystallizes as an unsymmetrical dinuclear cation bridged by the phen-oxy O atoms with one CuII atom coordinated by a water mol-ecule and the other by a perchlorate anion, thus making both CuII atoms five-coordinate, and with a further perchlorate anion present for charge balance. A long inter-action [2.9893 (5) Å] between one of the two CuI...