Assertion: ligand | /r/HasProperty | arranged around the metal ion
Facets:
value: at the vertices of an octahedron
type: LOCATION
Source sentences:
text: Werner noted only two isomers (fac- and mer-) of the complex [CrCl 3 (NH 3 ) 3 ] could be formed, and concluded the ligands must be arranged around the metal ion at the vertices of an octahedron.