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. Author manuscript; available in PMC: 2013 Feb 15.
Published in final edited form as: Chem Commun (Camb). 2009 Sep 4;(38):5731–5733. doi: 10.1039/b914736e

Fig. 2.

Fig. 2

A comparison of the orientation for the B2 boryl ligands in structures 5 and 6 with the qualitative transition state 7. For compound 5, rotation about the Ir–B bond is required to reach the transition state, whereas the boryl orientation in 6 is nearly ideal for cleaving the arene C–H bond.