Neutron diffraction crystallography

The structures of many simple hydrazinium salts have been determined using single-crystal X-ray crystallography. Neutron diffraction studies have shown that, besides normal hydrogen bonds, bifurcated and probably trifurcated bonds are also common in some of the hydrazinium salts. Table 1.4 lists some of the compounds along with their crystal data and N-N bond distances [6,19]. 

The mechanism by which serine peptidases, particularly serine endopep-tidases (EC 3.4.21), hydrolyze peptide bonds in peptides and proteins has been extensively investigated by X-ray crystallography, site-directed mutagenesis, detection of intermediates, chemical modification, H-NMR spectroscopy, and neutron diffraction [2-14], These studies revealed that all serine peptidases possess a catalytic triad, composed of a serine, a histidine, and an aspartate residue, and a so-called oxyanion hole formed by backbone NH groups. 

Cambridge Structural Database. A collection of >270K experimental structures for organic and organometallic compounds from X-ray crystallography and neutron diffraction. 

Keywords Crystallography High-Pressure X-ray Diffraction Neutron Diffraction... 

Brockhouse N. B. Structure dynamics of water by neutron diffraction IVth International Congress of Crystallography, Montreal, 1957. 

Chapter 9, "Other Diffraction Methods," builds upon your understanding of X-ray crystallography to help you understand other methods in which diffraction provides insights into the structure of large molecules. These methods include fiber diffraction, neutron diffraction, electron diffraction, and various forms of X-ray spectroscopy. These methods often seem very obscure, but their underlying principles are similar to those of X-ray crystallography. 

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