Neutron diffraction, time-of-flight

X-ray structural studies showed that benzoic acid dimers crystallize in a monodin-ic cell with the hydrogens aligned close to the crystallographic c-axis [22]. Time of flight neutron diffraction measurements were carried out by Brougham et al. [23] and these yielded the crystal structure of a deuterated benzoic acid. The stmcture of the monomer units is assumed to be unchanged upon complexation. 

Additional information on the structure of the mineral/water interface has come from neutron diffraction studies. For example, a high-resolution time-of-flight neutron diffraction study of the EDL at the vermiculite (001)/water interface (Williams et al. 

Further information on time-of-flight neutron diffraction (and other time-of-flight neutron scattering methods) can be obtained from the Web site of the ISIS Pulsed Neutron and Muon Facility, Rutherford Appleton Laboratory, UK (ISIS 2003). 

The single crystal time-of-flight neutron diffraction study on the metallaacetylacetone complex 68 reveals the presence of an intramolecular 0..H..0 bond. ... 

Figure 8 shows the relatively simple powder diffraction pattern of polycrystalline silicon, measured by time-of-flight neutron diffraction. Each allowed Bragg peak for the crystal structure is observed as a sharp peak in the diffraction pattern. A fundamental difference between single crystal and powder diffraction is that the single crystal diffraction pattern has the full directional information described by Equation [28], whereas for the powder diffraction pattern this information has been collapsed down into a onedimensional function. This difference has two important consequences firstly, the loss of directional information makes it very much more difficult to... 

Hannon AC, Howells WS and Soper AK (1990) ATLAS A suite of programs for the analysis of time-of-flight neutron diffraction data from liquid and amorphous samples. lOP Conference Series 107 193-211. 

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