forthcoming articles in Foundations of Crystallography Online

The following articles are a selection of those recently accepted for publication in Acta Crystallographica Section A: Foundations of Crystallography.

See also Forthcoming articles in all IUCr journals.

Photoinduced structural dynamics of polar solids studied by femtosecond X-ray diffraction

T. Elsaesser and M. Woerner

Synopsis: Real-time studies of structural dynamics by femtosecond X-ray diffraction are reviewed, discussing results for single-crystal and polycrystalline polar materials.

The new age of structural dynamics

A. H. Zewail

Molecular Crystal Global Phase Diagrams III: Sufficient parameter space determination

J. B. Keith and R. B. McClurg

Molecular crystal global phase diagrams. II. Reference lattices

R. B. McClurg and J. B. Keith

Synopsis: Experimental crystal structures that are amenable for inclusion in global phase diagrams as previously developed are identified.

A neutron interferometric measurement of a phase shift induced by Laue transmission

J. Springer, M. Zawisky, H. Lemmel and M. Suda

Low-angle scattering by cylindrical structures

G. B. Mitra

Dense quasicrystalline tilings by squares and equilateral triangles

M. O'Keeffe and M. M. J. Treacy

Synopsis: A new method of generating quasicrystalline patterns with 12-fold symmetry from tilings by squares and equilateral triangles is described.

The birth of the European Crystallographic Committee (ECC) and of the European Crystallographic Meetings (ECMs)

A. Authier

Synopsis: This article describes the circumstances of the establishment of the European Crystallographic Committee, now the European Crystallographic Association, a regional associate of the IUCr, and of the European Crystallographic Meetings.

Reconstruction from a single diffraction pattern of azimuthally projected electron density of molecules aligned parallel to a single axis

D. K. Saldin, V. L. Shneerson, D. Starodub and J. C. H. Spence

Synopsis: The azimuthally projected electron density of an isolated molecule of high degree of rotational symmetry about an alignment axis may be reconstructed by an iterative phasing algorithm applied to the diffuse diffraction pattern from an ensemble and beam incidence normal to the molecular alignment axis.

A new approach to calculating powder diffraction patterns based on the Debye scattering equation

N. W. Thomas

Synopsis: A method is described for the calculation of X-ray or neutron diffraction patterns of conventional crystalline powders based on the Debye scattering equation. Full background and reflection profiles are generated, whereby the effects of crystallite size and static and thermal disorder are also taken into account.

Effect of convergent beam semiangle on image intensity in HAADF STEM images

K. Kuramochi, Y. Kotaka, T. Yamazaki, M. Ohtsuka, I. Hashimoto and K. Watanabe

Synopsis: It is found that the intensities of bright spots in a spherical aberration (C_s)-uncorrected high-angle annular dark-field (HAADF) scanning transmission electron microscope (STEM) image of [011]-oriented Co₃O₄ change with sample thickness. From an analysis based on the Bloch-wave theorem, it is found that an insufficient semiangle of the incident convergent beam leads to intensities that do not depend on the average atomic number in the atomic columns.

X-ray constrained unrestricted Hartree-Fock and Douglas-Kroll-Hess wavefunctions

M. Hudák, D. Jayatilaka, L. Perasínová, S. Biskupic, J. Kozísek and L. Bucinský

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