Structure and decomposition of [HFe(CO)4(B2H5)], a revised behavior of an old uncharacterized complex

Insight into the dual action mechanism of 3V-PPh3 polymers as carriers and ligands in the Rh/3V-PPh3 heterogeneous catalytic hydroformylation of ethylene to propionaldehyde

“…In general, the middle Rh-L bond is characterized by a positive r 2 r value and negative H(r) value. 40,41 Therefore, these Rh-L bonds can be described as an intermediate type between covalent bonds and ionic bonds.…”