Acta Crystallographica Section A: Foundations of Crystallography
Volume 65, Part 3 (May 2009)
Copyright (c) International Union of Crystallography 2009


[Issue Author Index][Volume Author Index]

feature articles


 [Open access]

Acta Cryst. (2009). A65, 167-182
[ doi:10.1107/S0108767309007235 ]

60 years of IUCr journals

A. Authier

Synopsis: The birth and growth of the publications and journals of the International Union of Crystallography from 1948 to 2008 are described. Details are given of the pre-war history that led up to their creation and development.

Online 2 April 2009


research papers


 [Buy article online]

Acta Cryst. (2009). A65, 183-189
[ doi:10.1107/S0108767309003687 ]

Correcting electron-density resolution bias in reciprocal space

A. Altomare, C. Cuocci, C. Giacovazzo, S. Maggi, A. Moliterni and R. Rizzi

Synopsis: Atomic scattering factors are modified to correct the resolution bias in electron-density maps.

Online 13 March 2009


 [Buy article online]

Acta Cryst. (2009). A65, 190-201
[ doi:10.1107/S0108767309007508 ]

Depth profiling of polymer films with grazing-incidence small-angle X-ray scattering

M. A. Singh and M. N. Groves

Synopsis: A procedure for obtaining depth-specific scattering profiles of laterally defined nanostructure using grazing-incidence small-angle X-ray scattering is described.

Online 2 April 2009


 [Buy article online]

Acta Cryst. (2009). A65, 202-212
[ doi:10.1107/S0108767309006096 ]

Topological relations between three-periodic nets. II. Binodal nets

V. A. Blatov and D. M. Proserpio

Synopsis: The TOPOS program package was used to generate all subnets of 3- to 12-coordinated binodal nets taken from the Reticular Chemistry Structure Resource database. 38 304 binodal nets with novel topologies were revealed and stored in the TTD collection.

Online 2 April 2009


 [Buy article online]

Acta Cryst. (2009). A65, 213-226
[ doi:10.1107/S0108767309003638 ]

Crystal topologies - the achievable and inevitable symmetries

G. Thimm

Synopsis: On the basis of a link between a graph-theoretical description of crystal structures and their symmetries, atom positions are constrained. Examples show the presence of implicit and forbidden symmetries.

Online 13 March 2009


 [Buy article online]

Acta Cryst. (2009). A65, 227-231
[ doi:10.1107/S0108767309004966 ]

Temperature-dependent Debye-Waller factors for semiconductors with the wurtzite-type structure

M. Schowalter, A. Rosenauer, J. T. Titantah and D. Lamoen

Synopsis: The Debye-Waller factors of wurtzite-type semiconductors are calculated from ab initio force constants and fitted in the temperature range from 0.1 to 1000 K.

Online 13 March 2009


 [Buy article online]

Acta Cryst. (2009). A65, 232-239
[ doi:10.1107/S0108767309009714 ]

Relationship between the atomic pair distribution function and small-angle scattering: implications for modeling of nanoparticles

C. L. Farrow and S. J. L. Billinge

Synopsis: The exact relationship between the atomic pair distribution function and small-angle-scattering equations is established and discussed. This has implications for the structural modeling of nanoparticles.

Online 2 April 2009


 [Buy article online]

Acta Cryst. (2009). A65, 240-248
[ doi:10.1107/S0108767309004292 ]

Discrete tomography of icosahedral model sets

C. Huck

Synopsis: The main problems in the discrete tomography of mathematical quasicrystals with icosahedral symmetry are investigated.

Online 13 March 2009


 [Buy article online]

Acta Cryst. (2009). A65, 249-252
[ doi:10.1107/S0108767309008228 ]

The full symmetry and irreducible representations of nanotori

M. Arezoomand and B. Taeri

Synopsis: The full symmetry groups of carbon nanotori are investigated and the irreducible representations and characters of the symmetry groups of chiral and achiral nanotori are discussed.

Online 2 April 2009