Observation of molecular reorientation at a two-dimensional-liquid phase transition
- 23 December 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 55 (26), 2903-2906
- https://doi.org/10.1103/physrevlett.55.2903
Abstract
The structure of a monolayer of pentadecanoic acid near the liquid-expanded–liquid-condensed phase transition at a water-air interface is studied by optical second-harmonic generation. The results show that this transition is accompanied by a reorientation of the molecules and that the two phases are separated by an inhomogeneous coexistence region on the isotherms.Keywords
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