Size and Shape Dependence of Hydrophobic Hydration at the Level of Primitive Models.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F02%3A27020145" target="_blank" >RIV/67985858:_____/02:27020145 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Size and Shape Dependence of Hydrophobic Hydration at the Level of Primitive Models.

Popis výsledku v původním jazyce

The hydrophobic hydration of apolar solutes of different shape and size is studied at an elementary level using two types of extended primitive models of water and representing the solute by hard spheres, cylinders, and spherocylinders, respectively. Thestructure of the first hydration shell around cylindrical particles is determined and compared to that around spherical ones and at a hard structureless at wall. It is found that while the two studied models of water give the same hydration structure for small non-polar particles, larger solutes are hydrated in a different way. Whereas one model does not show significant size and shape dependence, the other predicts significant changes in the orientation and hydrogen bonding of water molecules in the vicinity of the hydrophobic surface. These results are in agreement with those found for spherical solutes and confirm sensitivity of hydration phenomena to details of models of water, particularly to the strength and geometry of hydrogen

Název v anglickém jazyce

Size and Shape Dependence of Hydrophobic Hydration at the Level of Primitive Models.

Popis výsledku anglicky

The hydrophobic hydration of apolar solutes of different shape and size is studied at an elementary level using two types of extended primitive models of water and representing the solute by hard spheres, cylinders, and spherocylinders, respectively. Thestructure of the first hydration shell around cylindrical particles is determined and compared to that around spherical ones and at a hard structureless at wall. It is found that while the two studied models of water give the same hydration structure for small non-polar particles, larger solutes are hydrated in a different way. Whereas one model does not show significant size and shape dependence, the other predicts significant changes in the orientation and hydrogen bonding of water molecules in the vicinity of the hydrophobic surface. These results are in agreement with those found for spherical solutes and confirm sensitivity of hydration phenomena to details of models of water, particularly to the strength and geometry of hydrogen

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/IAA4072908" target="_blank" >IAA4072908: Od jednoduchých modelů k molekulární teorii asociujících tekutin. Teorie aplikace</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Chemistry Chemical Physics

ISSN

1463-9076

e-ISSN

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Svazek periodika

4

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

3704-3711

Kód UT WoS článku

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EID výsledku v databázi Scopus

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