Structure 19.27 shows the ligand tpy (2,2' :6',2"- terpyridine). What conforma...

Structure 19.27 shows the ligand tpy (2,2' :6',2"- terpyridine). What conformational changes does the ligand undergo when it coordinates to a metal ion? Comment on possible isomer formation in the following complexes:

(a) [Ru(py)3Cl3],

(b) [Ru(bpy)2a2]+, and

(c) [Ru(lpy)CI3].