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A re-appraisal of the concept of ideal mixtures through a computer simulation study of the methanol-ethanol mixtures


Požar, Martina; Lovrinčević, Bernarda; Zoranić, Larisa; Mijaković, Marijana; Sokolić, Franjo; Perera, Aurélien
A re-appraisal of the concept of ideal mixtures through a computer simulation study of the methanol-ethanol mixtures // The Journal of chemical physics, 145 (2016), 6; 064509-1 doi:10.1063/1.4960435 (međunarodna recenzija, članak, znanstveni)


Naslov
A re-appraisal of the concept of ideal mixtures through a computer simulation study of the methanol-ethanol mixtures

Autori
Požar, Martina ; Lovrinčević, Bernarda ; Zoranić, Larisa ; Mijaković, Marijana ; Sokolić, Franjo ; Perera, Aurélien

Izvornik
The Journal of chemical physics (0021-9606) 145 (2016), 6; 064509-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Kirkwood-Buff theory ; energy-enthalpy compensation ; molecular dynamics ;
(Kirkwood-Buff theory ; energy-enthalpy compensation ; molecular dynamics)

Sažetak
Methanol-ethanol mixtures under ambient conditions of temperature and pressure are studied by computer simulations, with the aim to sort out how the ideality of this type of mixtures differs from that of a textbook example of an ideal mixture. This study reveals two types of ideality, one which is related to simple disorder, such as in benzene-cyclohexane mixtures, and another found in complex disorder mixtures of associated liquids. It underlines the importance of distinguishing between concentration fluctuations, which are shared by both types of systems, and the structural heterogeneity, which characterises the second class of disorder. Methanol-1propanol mixtures are equally studied and show a quasi-ideality with many respect comparable to that of the methanol-ethanol mixtures, hinting at the existence of a super-ideality in neat mono-ol binary mixtures, driven essentially by the strong hydrogen bonding and underlying hydroxyl group clustering.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
HRZZ-UIP-2013-11-4514 - Formacija i destrukcija domena u vodenim otopinama (Larisa Zoranić, )

Ustanove
Prirodoslovno-matematički fakultet, Split

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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