PPT Slide

Platon’s Addsym - finding extra symmetry in hand- build inorganic models

• In the GSAS refined ceramic - original starting “model” was hand-built using crystal chemical arguments in R3

• Platon’s Addsym (default values) gives R-3c
  • plus option of a new Shelx RES file with the structure in the new spacegroup
  • and the directions to find the extra symmetry elements from the old R3 model

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