Old way of Space group determination: Difference between revisions

Old way of Space group determination (view source)

1 byte added , 21 November 2007

m

no edit summary

2,684

edits

Revision as of 11:51, 21 November 2007 (view source) Kay (talk \| contribs) mNo edit summary ← Older edit		Revision as of 11:56, 21 November 2007 (view source) Kay (talk \| contribs) mNo edit summary Newer edit →
Line 12:		Line 12:
	* finally decide on the correct Bravais lattice and point group by comparing R-factors (in particular R_meas), and, from there, come up with possible space groups by looking at the table of systematic absences along the h,0,0 0,k,0 and 0,0,l axes of the diffraction pattern.		* finally decide on the correct Bravais lattice and point group by comparing R-factors (in particular R_meas), and, from there, come up with possible space groups by looking at the table of systematic absences along the h,0,0 0,k,0 and 0,0,l axes of the diffraction pattern.

	Be aware of the possibility of [http://www.ccp4.ac.uk/dist/html/twinning.html twinning], and of the different, but equivalent ways to index a given diffraction pattern ([http://www.ccp4.ac.uk/dist/html/reindexing.html reindexing]!		Be aware of the possibility of [http://www.ccp4.ac.uk/dist/html/twinning.html twinning], and of the different, but equivalent ways to index a given diffraction pattern ([http://www.ccp4.ac.uk/dist/html/reindexing.html reindexing])!