Neutron scattering studies Fourier transform

The adsorption of furan, 2,5-dihydrofuran and tetrahydrofuran on sodium-ion exchanged faujasites with different Si/Al ratios was studied by combining temperature-programmed desorption (TPD), inelastic neutron scattering (INS), Fourier transform infrared spectroscopy (FTIR), diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), quantum mechanical computations and Monte-Carlo simulations. [Pg.218]

W.P.J.H. Jacobs, H. Jobic, J.H.M.C. van Wolput R.A. van Santen (1992). Zeolites, 12, 315-319. Fourier-transform infiared and inelastic neutron scattering study of HY zeolites. [Pg.363]

Fourier-transform infrared (FT-IR) spectroscopy and small-angle X-ray (SAXS) and neutron (SANS) scattering studies have shown the existence of a further pressure induced gel phase in DPPC bilayers." " Pressure dependent NMR studies yielded complementary information on the pressure-induced gel phases. The gel state of DPPC bilayers shows a variation in lineshapes which depend on the particular pressure and temperature. The types of lineshapes seen in a high pressure investigation of dg2-DPPC by Jonas et al. are... [Pg.182]

This chapter treats principally the vibrational spectra determined by infrared and Raman spectroscopy. The means used to assign infrared absorption bands are outlined. Also, the rationale for the selection of permitted absorption bands is described. The basis for the powerful technique of Fourier Transform Infrared (FTIR) is presented in Appendix 6A. Polyethylene is used to illustrate both band assignment and the application of selection rules because its simple chain structure and its commercial importance have made polyethylene the most thoroughly studied polymer. The techniques of nuclear magnetic resonance, neutron inelastic scattering and ultraviolet spectroscopy are briefly described. The areas of dielectric loss and dynamic mechanical loss are not presented in this chapter, but material on these techniques can be found in Chapters 5. [Pg.286]

Several different experimental techniques, such as fluorescence decay, electron spin resonance (ESR) spectroscopy, Raman spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, neutron reflectome-try, calorimetry, Fourier-transform infrared (FT-IR) adsorption spectroscopy, small-angle neutron scattering (SANS), ellipsometry and surface force measurements, have been used to study self-assembled surfactant structures at the solid-liquid interface (11). These measurements, although providing insight into the hemimicellization process, critical aggregation numbers... [Pg.237]

If there is no analysis of the scattered neutron energy then (within the static approximation) the measured intensity is proportional to the Fourier transform of the instantaneous correlation function which is essentially a snapshot of the spin correlations in reciprocal space. At non-zero energy transfer, the spin dynamics of the system under study are probed. In a magnetically ordered rsystem of localised spins, the elementary magnetic excitations are spin waves. [Pg.284]

A recent development in neutron spectrometry has extended the range of dynamic studies on macromolecules. The neutron spin echo (NSE) principle is utilized to determine the time Fourier transform S q.t) of the scattering function S(q.(o) at a given momentum transfer. The NSE method compares the incident and scattered velocities of each individual neutron so that the resolution and... [Pg.261]

See also Fourier Transformation and Sampling Theory Inelastic Neutron Scattering, Applications Inelastic Neutron Scattering, Instrumentation Inorganic Compounds and Minerals Studied Using X-Ray Diffraction Material Science Applications of X-Ray Diffraction Neutron Diffraction, Instrumentation Powder X-Ray Diffraction, Applications Structure Refinement (Solid State Diffraction). [Pg.342]

See also Diffusion Studied Using NMR Spectroscopy Electromagnetic Radiation Fourier Transformation and Sampling Theory Laser Applications in Electronic Spectroscopy Laser Spectroscopy Theory Light Sources and Optics Neutron Diffraction, Instrumentation Scattering Theory. [Pg.907]