Grazing incidence diffraction of cadmium arachidate multilayers at the solid-liquid interface
-
Chad E. Miller
Abstract
Using complementary X-ray reflectivity (XR) and grazing incidence X-ray diffraction (GIXD), we report structural studies of supported thin-organic layers in contact with water and air. Using a monochromatic synchrotron beam to penetrate 10 mm of liquid, we have characterized buried films composed of 12.5 repeating bilayers of arachidic acid (C20H40O2) complexed with cadmium ions (cadmium arachidate, CdAr2). We found that the layered structure of the CdAr2 multilayers do not exhibit rearrangement after exposure to water with negligible water penetration into the inner layers when compared to their dry state. These findings are consistent with the formation of extremely robust CdAr2 multilayers that can withstand multiple rinses in strong organic solvents, acid, and mechanical wear. The second goal was to demonstrate the feasibility of similar experiments to study much thinner single bilayer bio-membranes. These studies are the first successful GIXD experiments of ultra thin-organic film composed of a few layers at the solid-liquid interface.
© by Oldenbourg Wissenschaftsverlag, München, Germany
Articles in the same Issue
- Grazing incidence diffraction of cadmium arachidate multilayers at the solid-liquid interface
- Editorial: Diffuse Scattering
- Diffuse scattering from microstructures and mesostructures
- Atomic pair distribution function analysis of materials containing crystalline and amorphous phases
- Determination of phonon dispersion relations by X-ray thermal diffuse scattering
- Diffuse scattering and disorder in zirconia
- Disorder, structured diffuse scattering and the transmissionelectron microscope
- Modelling disorder in 3,3′-dimethoxybenzil, C16H14O4
- Diffuse scattering and phason modes in the i-AlPdMn quasicrystalline phase
- Problems in measuring diffuse X-ray scattering
- Case studies of molecular disorder
- Stacking disorder: the hexagonal polymorph of tris(bicyclo[2.1.1]hexeno)benzene and related examples
- Diffuse X-ray scattering from tiny sample volumes
- Magnetic short-range order in disordered and ordered binary alloys
- Diffuse scattering in the layered perovskites
- Cooperative Evolution — a new algorithm for the investigation of disordered structures via Monte Carlo modelling
Articles in the same Issue
- Grazing incidence diffraction of cadmium arachidate multilayers at the solid-liquid interface
- Editorial: Diffuse Scattering
- Diffuse scattering from microstructures and mesostructures
- Atomic pair distribution function analysis of materials containing crystalline and amorphous phases
- Determination of phonon dispersion relations by X-ray thermal diffuse scattering
- Diffuse scattering and disorder in zirconia
- Disorder, structured diffuse scattering and the transmissionelectron microscope
- Modelling disorder in 3,3′-dimethoxybenzil, C16H14O4
- Diffuse scattering and phason modes in the i-AlPdMn quasicrystalline phase
- Problems in measuring diffuse X-ray scattering
- Case studies of molecular disorder
- Stacking disorder: the hexagonal polymorph of tris(bicyclo[2.1.1]hexeno)benzene and related examples
- Diffuse X-ray scattering from tiny sample volumes
- Magnetic short-range order in disordered and ordered binary alloys
- Diffuse scattering in the layered perovskites
- Cooperative Evolution — a new algorithm for the investigation of disordered structures via Monte Carlo modelling
