Discuss the following structure (η5-C5H5)(PPh3)Ir(η2-NCC6H4Cl). What is somewhat unique about the structure?

1 Answer
Apr 9, 2018

The structure is fluxional. Here are two views of the compound:

The eta^2 interaction with "Cl"-"C"_6"H"_4"CN" allows for free rotation of the "C"-="N" bond at room temperature. If the substance is cooled down, the free bond rotation will slow down.