ic401954e_si_001.cif (73.91 kB)
Five-Coordinate Silicon(II) Compounds with Si–M Bonds (M = Cr, Mo, W, Fe): Bis[N,N′‑diisopropylbenzamidinato(−)]silicon(II) as a Ligand in Transition-Metal Complexes
dataset
posted on 2013-10-07, 00:00 authored by Konstantin Junold, Johannes
A. Baus, Christian Burschka, Thomas Vent-Schmidt, Sebastian Riedel, Reinhold TackeReaction of the donor-stabilized
silylene 1 with [Cr(CO)6], [Mo(CO)6], [W(CO)6], or [Fe(CO)5] leads to the formation
of the transition-metal silylene complexes 2–5, which contain five-coordinate silicon(II) moieties with
Si–M bonds (M = Cr, Mo, W, Fe). These compounds were characterized
by NMR spectroscopic studies in the solid state and in solution and
by crystal structure analyses. These experimental investigations were
complemented by computational studies to gain insight into the bonding
situation of 2–5. The nature of the
Si–M bonds is best described as a single bond.