Figure 4
Density functional theory (DFT) calculated energies of the molecular orbitals (MOs) of [Rh2(AcO)4(H2O)2], [Rh2(AcO)4(H2S)2] and [Rh2(AcO)4(EtSH)2], and graphic representations of the MOs involved in the π(Rh24+) → σ*(Rh24+) and σ(Rh24+) → σ*(Rh24+) transitions, which are the main contributors to the 295 nm band observed in the UV–vis spectrum of a 1.0 mM solution of [Rh2(AcO)4(EtSH)2] in 50 mM EtSH in chloroform (see Fig. 3). |