Coordination Chemistry Solutions: #25

25.* (1991 2 5)

A. Sketch the two enantiomers of Ru(bipy)₃²⁺.

B. Sketch the bipy ligand.

The bipy ligand is bidentate.

C. How many signals does the proton-decoupled ¹³C NMR of Ru(bipy)₃²⁺ have?

The proton-decoupled ¹³C NMR of Ru(bipy)₃²⁺ has 5 signals.

D. How many magnetically inequivalent types of H atoms does Ru(bipy)₃²⁺ have?

Ru(bipy)₃²⁺ has 4 magnetically inequivalent types of H atoms.

E. Is this molecule chiral?

Yes, Ru(bipy)₃²⁺ is chiral. It is nonsuperimposable on its mirror image and has no Sn or improper rotation axis (i or s.)