Penacchio RFS, Estradiote MB, Remédios CMR, Calligaris GA, Torikachvili MS, Kycia SW, Morelhão SL. Introduction to
Python Dynamic Diffraction Toolkit (
PyDDT): structural refinement of single crystals via X-ray phase measurements.
J Appl Crystallogr 2023;
56:1574-1584. [PMID:
37791370 PMCID:
PMC10543681 DOI:
10.1107/s1600576723005800]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 07/02/2023] [Indexed: 10/05/2023] Open
Abstract
PyDDT is a free Python package of computer codes for exploiting X-ray dynamic multiple diffraction in single crystals. A wide range of tools are available for evaluating the usefulness of the method, planning feasible experiments, extracting phase information from experimental data and further improving model structures of known materials. Graphical tools are also useful in analytical methodologies related to the three-dimensional aspect of multiple diffraction. For general X-ray users, the PyDDT tutorials provide the insight needed to understand the principles of phase measurements and other related methodologies. Key points behind structure refinement using the current approach are presented, and the main features of PyDDT are illustrated for amino acid and filled skutterudite single crystals.
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