Effect of chiral interactions on the structure of Langmuir monolayers

Scalas, E, Brezesinski, G, Kaganer, V M and Möhwald, H (1998) Effect of chiral interactions on the structure of Langmuir monolayers. Physical Review E, 58 (2). pp. 2172-2178. ISSN 1539-3755

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Structural changes in monolayers of the enantiomer and the racemic mixture of 1-hexadecyl-glycerol with temperature and surface pressure variations are compared. On compression, both monolayers exhibit a variation of the tilt azimuth from the direction to the nearest neighbor to the next nearest neighbor. In the monolayer of the racemate, this variation occurs as a first order transition. In the monolayer of the enantiomer, the unit cell is oblique, and continuously passes from a state close to the low-pressure state of the racemate to a state close to its high-pressure state. The azimuths of the unit-cell distortion and that of the tilt remain almost equal to each other. The effect of chirality decreases when the temperature is increased. Structural changes are explained in detail within the framework of the Landau theory of phase transitions.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Mathematics
Subjects: Q Science > QC Physics > QC0170 Atomic physics. Constitution and properties of matter Including molecular physics, relativity, quantum theory, and solid state physics
Q Science > QD Chemistry > QD0450 Physical and theoretical chemistry
Depositing User: Enrico Scalas
Date Deposited: 02 Oct 2014 13:35
Last Modified: 10 Mar 2017 18:12
URI: http://srodev.sussex.ac.uk/id/eprint/50312

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