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2. Diffuse scattering and order in quasi-one-dimensional molecular crystals

Author

S. van Smaalen, J. L. de Boer, H.-J. Lamfers, and Rijksuniversiteit Groningen

Subjects
DISORDER, Phase transition, Chemistry, business.industry, CONDUCTOR, Molecular physics, Conductor, chemistry.chemical_compound, organic conductors, Amplitude, Optics, PHASE-TRANSITION, Substructure, incommensurate structures, General Materials Science, Point (geometry), low-dimensional scattering, business, Maxima, Instrumentation, Superstructure (condensed matter), Perylene, UREA INCLUSION-COMPOUNDS
Abstract

The order and disorder in quasi-one-dimensional organic conductors is reviewed from a structural point of view. The qualitative features are discussed of the diffuse scattering and of superstructure reflections. The possibilities are considered to obtain structural information from a quantitative analysis of the diffuse scattering. Two examples are presented in detail. For C1TET-TTF(AuI2)0.8 it is shown that the partially ordered AuI2 substructure can be determined from the maxima within the diffuse sheets. For (Perylene)Co(mnt)2, a quantitative description of the first-order satellite reflections requires a saw-tooth shaped modulation function of large amplitude (0.7 A).

Published
1998

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