Fluid-phase organisation

FLUID-PHASE ORGANISATION STRUKTUR/KOZO/STRUCTURE... 

It is probable that the organisation of the confined fluid phase of simple gases strongly depends on both the polar nature of the molecule and the extent of its polarizability. For this reason, we have chosen to study the following simple gases whose properties are recalled in Table 1. 

S. R. Collinson and D. W. Bruce Metallomesogens-Supramolecular Organisation of Metal Complexes in Fluid Phases, in Perspectives in Supramolecular Chemistry Transition Metals in Supramolecular Chemistry, vol. 5 (ed. J. P. Sauvage), Wiley, Inc., New York, 1999, pp. 285-369. 

It is now well-established that for atomic fluids, far from the critical point, the atomic organisation is dictated by the repulsive forces while the longer range attractive forces serve to maintain the high density [34]. The investigation of systems of hard spheres can therefore be used as simple models for atomic systems they also serve as a basis for a thermodynamic perturbation analysis to introduce the attractive forces in a van der Waals-like approach [35]. In consequence it is to be expected that the anisotropic repulsive forces would be responsible for the structure of liquid crystal phases and numerous simulation studies of hard objects have been undertaken to explore this possibility [36]. 

One particularly important feature of vesicles is that they exhibit a phase transition during thermal variations, passing from a highly organised solid state to a fluid state. The phase transition temperature and phase separation provide a means of controlling permeability and molecular recognition. Surfactant vesicles, like membranes, have osmotic properties. They contract in the presence of electrolytes and are destroyed by addition of surfactant or alcohol. 

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