Titlebook: Structure Determination by X-Ray Crystallography; M. F. C. Ladd,R. A. Palmer Book 1985 Springer-Verlag US 1985 X-ray crystallography.chemi

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Crystal Geometry. I, species. X-ray crystallography is a relatively new discipline, dating from the discovery in 1912 of the diffraction of X-rays by crystals. This year marked the beginning of the experimental determination of crystal structures. Figure 1.1 illustrates the structure of sodium chloride, which was among

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Crystal Geometry. II,ized by periodicities in three dimensions. An atomic grouping is repeated over and over again by a certain symmetry mechanism so as to build up a crystal, and thus we are led to a consideration of space-group symmetry. A space- group pattern in its simplest form may be considered to be derived by re

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rd bedrock of structural results in chemistry and in mineralogy. In biology, where the structures are not fuIly crystaIline, it can still provide valuable results and, indeed, the impact here has been revolutionary. It is still an immense field for young workers, and no doubt will provide yet more s

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Crystal Geometry. I,marked the beginning of the experimental determination of crystal structures. Figure 1.1 illustrates the structure of sodium chloride, which was among the first crystals to be studied by the new X-ray techniques.

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Preliminary Examination of Crystals by Optical and X-Ray Methods,ll dimensions, and may be carried out by a combination of optical and X-ray techniques. The optical methods described here are simple, but, nevertheless, often very effective; they should be regarded as a desirable prerequisite to an X-ray structure determination.