Formation of a σ‑alkane Complex and a Molecular Rearrangement in the Solid-State: [Rh(Cyp<sub>2</sub>PCH<sub>2</sub>CH<sub>2</sub>PCyp<sub>2</sub>)(η<sup>2</sup>:η<sup>2</sup>‑C<sub>7</sub>H<sub>12</sub>)][BAr<sup>F</sup><sub>4</sub>]

Addition of H<sub>2</sub> to the precursor [Rh­(Cyp<sub>2</sub>PCH<sub>2</sub>­CH<sub>2</sub>PCyp<sub>2</sub>)­(η<sup>2</sup>:η<sup>2</sup>-C<sub>7</sub>H<sub>8</sub>)]­[BAr<sup>F</sup><sub>4</sub>] gives the σ-alkane complex [Rh­(Cyp<sub>2</sub>PCH<sub>2</sub>­CH<sub>2</sub>PCyp<sub>2</sub>)­(η<sup>2</sup>:η<sup>2</sup>-C<sub>7</sub>H<sub>12</sub>)]­[BAr<sup>F</sup><sub>4</sub>] by a single-crystal to single-crystal reaction, as characterized by X-ray crystallography, SSNMR spectroscopy, and periodic DFT. An unexpected rearrangement of the {Rh­(L<sub>2</sub>)}<sup>+</sup> fragment is revealed.