Synthesis and crystal structures of [Rh(TTP)(CH3)]2(μ-CNpy) and [Rh(TTP)(C8H11)] (TTP=5,10,15,20-tetra(p-tolyl)porphyrin dianion; CNpy=4-cyanopyridine; C8H11=(5-norbornen-2-yl)methyl)

Interaction of [Rh(TTP)CH3] (TTP=5,10,15,20-tetra(p-tolyl)porphyrin dianion) with bidentate ligands L affords [Rh(TTP)CH3]2(μ-L) (L=4-cyanopyridine (1) or 4,4′-bipyridine (2)). The structure of 1 has been established by X-ray crystallography. The average RhC, average RhN(pyrrole), and average RhN(CNpy) distances in 1 are 2.032(4), 2.032, and 2.273(4) Å, respectively. The reaction of Na[Rh(TTP)] with (5-norbornen-2-yl)methyl iodide (C8H11I) affords [Rh(TTP)(C8H11)] (5), which has been characterized by X-ray diffraction study. The RhC and average RhN distance in 5 are 2.052(6) and 2.022 Å, respectively.