Abstract
Abstract In spite of the C3v symmetry of the new tripodal phosphine ligands 1,2 no facial coordination to Ir(I) and Ir(III) is observed. 1 forms square planar, square pyramidal, and octahedron iridium complexes with two phosphine “arms” coordinated trans to one another. The third phosphine “arm” which remains uncoordinated is in a fast exchange process with the metal bound phosphines. Intramolecular metalation of a C-H bond of the cyclohexane ring occurs when 2 is treated with Ir(PPh3)2(CO)Cl.
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