Trans Ligand Determines the Stability of Paramagnetic Manganese(II) Hydrides of the Type trans-[MnH(L)(dmpe)2]+ Where L is PMe3, C2H4, or CO

Paramagnetic metal hydride (PMH) complexes play important roles in catalytic applications and bioinorganic chemistry. 3d PMH chemistry has largely focused on Ti, Mn, Fe, and Co. Various Mn^II PMHs have been proposed as intermediates in catalysis, but isolated Mn^II PMHs are limited to dimeric high-spin Mn^II structures with bridging hydrides. In this paper, a series of the first low-spin monomeric Mn^II PMH complexes are generated by chemical …