1X6Z:
reference: Pros and cons of cryocrystallography: should we also collect a room-temperature data set?, Dunlop KV, Irvin RT, Hazes B, Acta Crystallogr D Biol Crystallogr 2005 Jan;61(Pt 1):80-7. Epub 2004 Dec, 17. PMID: 15608379

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).