N. C. Maliszewskyj, P. A. Heiney, J. K. Blasie, J. P. McCauley, Jr., and A. B. Smith, III, J. Phys. II France 2, 75-85 (1992).
The behavior of several species of discogenic molecules at the air-water interface by measuring surface pressure vs. molecular area isotherms has been determined. Alkylthiotriphenylene derivatives do not appear to form monolayers at the interfaces, due to lack of amphiphilic character. Two truxene derivatives were found to display molecular areas on the order of 65 Angstrom**2 most likely due to the molecules lying "edge-on" to the water surface. Hexacyclens generally lie with the core group parallel to the surface of the water with the tail groups extending away from the interface; a higher density phase may correspond to conformational changes within the molecule.
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