Diethylenetriamine (dien) is capable of serving as a tridentate ligand.

(a) Draw the structures of fac-Cr(dien)Cl₃ and mer- Cr(dien)Cl₃.
(b) Two different geometric isomers of mer- Cr(dien)Cl₂Br are possible. Draw the structure for each.
(c) Three different geometric isomers are possible for [Cr(dien)₂]³⁺. Two have the dien ligand in a fac configuration, and one has the ligand in a mer orientation. Draw the structure of each isomer.    

Transcribed Image Text:

HIN: H₂NCH₂CH₂-N-CH₂CH₂NH₂ H Diethylenetriamine, dien