Modern Crystallography

Impact of Crystallography on Modern Science

Diffraction techniques represent the ideal tools for the determination of the structure of materials characterized by long range order; no spectroscopic technique can compete with them in terms of accuracy. However, when the long range is missing, because we are dealing with molecules, gases, liquids, amorphous solids, nanostructured materials etc... than the standard way of analyzing diffracti...

Incommensurate Crystallography

Acta Crystallographica Section A: Foundations of Crystallography covers theoretical and fundamental aspects of the structure of matter. The journal is the prime forum for research in diffraction physics and the theory of crystallographic structure determination by diffraction methods using X-rays, neutrons and electrons. The structures include periodic and aperiodic crystals, and non-periodic d...

Chemical Crystallography

DNA Crystallography

Quantum crystallography.

Approximate wavefunctions can be improved by constraining them to reproduce observations derived from diffraction and scattering experiments. Conversely, charge density models, incorporating electron-density distributions, atomic positions and atomic motion, can be improved by supplementing diffraction experiments with quantum chemically calculated, tailor-made electron densities (form factors)...