The following articles are a selection of those recently accepted for publication in Acta Crystallographica Section B: Structural Science.
See also Forthcoming articles in all IUCr journals.
Synopsis: Single crystals of three N-benzylideneaniline derivatives containing electron-push-pull groups have been grown. Two of them crystallise in acentric space groups with high planarity of their molecular skeletons. Quantum-mechanical calculations strengthen the potential non-linear optical application of the obtained compounds.
Synopsis: The notion of order in spatial structures is discussed in the context of mathematical diffraction theory, with particular emphasis on aperiodic crystals and non-crystalline structures.
Synopsis: Group theoretical methods are used to explore the possibilities for tilting of the corner-connected octahedra in hexagonal and tetragonal tungsten bronzes. Connection is made with the structures reported for these materials.
Synopsis: The structure of two new nanocrystalline phases, K5Al(W3O11)2 and NaAl(WO4)2, was determined by automated electron diffraction tomography. Structure analysis was complicated by pseudo-symmetries and the presence of additional phases.
Synopsis: The first refinement of modulated mullite in the superspace approach is presented disclosing a modulated average structure of basically disordered mullite. It is discussed as to why mullite does not form a perfectly long-range ordered structure, although simple superstructures can easily be set up which are compatible with the chemical composition.
Synopsis: Crystals of K2[SiF6] were grown in agar gel. They have a cubic structure as refined from X-ray diffraction data, however, they exhibit birefringence in six regular domains.
Copyright © International Union of Crystallography