Please use this identifier to cite or link to this item: http://dl.umsu.ac.ir/handle/10722/90919
Title: Determination of lattice structure and calculation of molecular tilt in lipid monolayers on water using x-ray diffraction
Authors: Bohanon, TM;Lin, B;Shih, MC;Ice, GE;Dutta, P
Year: 1990
Publisher: American Physical Society. The Journal's web site is located at http://prb.aps.org/
Description: We report the first determination of lattice structure for classical (fatty acid and alcohol) monolayer systems on the surface of water, based on our observation of first- and second-order x-ray diffraction peaks. Monolayers of both heneicosanoic acid and heneicosanol in the highest-pressure phase pack into a distorted hexagonal lattice with orthorhombic cell dimensions of a7.5 t/rA, b5.0 i/rA. From the observed peak intensities, we have calculated the molecular tilt directions and magnitudes, using the assumption (reasonable given the dense packing) that the chains are parallel to each other and in the all-trans configuration. the temperature range 05°C, the molecules tilt towards the b axis, but at higher temperatures the tilt direction changes to the a axis. © 1990 The American Physical Society.
URI: http://hub.hku.hk/handle/10722/90919
Standard no: Physical Review B, 1990, v. 41 n. 7, p. 4846-4849
10.1103/PhysRevB.41.4846
4849
WOS:A1990CU14000134
0163-1829
7
eid_2-s2.0-0242536304
4846
41
Appears in Collections:Department of Anatomy

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