Chiral segregation, an unusual racemic phase, and a residual entropy for a lattice system of model chiral molecules

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F10%3A00175058" target="_blank" >RIV/68407700:21110/10:00175058 - 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

Chiral segregation, an unusual racemic phase, and a residual entropy for a lattice system of model chiral molecules

Popis výsledku v původním jazyce

Low temperature phases of a 2D model molecular system that contains an equimolar mixture of a chiral molecule and its mirror image were studied. The molecules lie on a thin film in the close-packed regime, occupying the sites of a honeycomb lattice, andneither enantiomer is externally favored. In one range of interactions, chiral segregation into two ordered homochiral phases containing a single enantiomer occurs. An ordered racemic phase occurs in which one sublattice is occupied by one enantiomer andthe other sublattice is occupied by the other enantiomer. When second-closest group interactions are relaxed, the ground states of the homochiral and the associated racemic phase have the same energy; in fact, the total number of ground state configurations becomes infinite and yields a residual entropy. This residual entropy is calculated exactly.

Název v anglickém jazyce

Chiral segregation, an unusual racemic phase, and a residual entropy for a lattice system of model chiral molecules

Popis výsledku anglicky

Low temperature phases of a 2D model molecular system that contains an equimolar mixture of a chiral molecule and its mirror image were studied. The molecules lie on a thin film in the close-packed regime, occupying the sites of a honeycomb lattice, andneither enantiomer is externally favored. In one range of interactions, chiral segregation into two ordered homochiral phases containing a single enantiomer occurs. An ordered racemic phase occurs in which one sublattice is occupied by one enantiomer andthe other sublattice is occupied by the other enantiomer. When second-closest group interactions are relaxed, the ground states of the homochiral and the associated racemic phase have the same energy; in fact, the total number of ground state configurations becomes infinite and yields a residual entropy. This residual entropy is calculated exactly.

Druh

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

CEP obor

BE - Teoretická fyzika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Journal of Statistical Mechanics: Theory and Experiment

ISSN

1742-5468

e-ISSN

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Svazek periodika

10

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

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Kód UT WoS článku

000285583500031

EID výsledku v databázi Scopus

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