Oxidative Group Transfer to Co(I) Affords a Terminal Co(III) Imido Complex

On the feasibility of N 2 fixation via a single-site Fe I /Fe IV cycle: Spectroscopic studies of Fe I (N 2 )Fe I , Fe IV N, and related species

“…The crystallographic structures of [BP 3 ]Fe'N x complexes show a pseudo-threefold symmetric environment with the borate, the Fe center, and the nitride or imide group lying along a common z axis (25, 27,28,41). Under this approximate C 3v symmetry, the d orbitals split into a low-lying nonbonding e set of dxy, dx 2 -y 2 parentage (Fig.…”

Diazoalkanes react with a bis(phosphino)borate copper(i) source to generate [Ph2BPtBu2]Cu(η1-N2CR2), [Ph2BPtBu2]Cu(CPh2), and [Ph2BPtBu2]Cu–N(CPh2)(NCPh2)

“…6 In this paper, we describe the utility of the bulky bis(phosphino)borate ligand 7 (4). The X-ray crystal structures of complexes 2 and 3, which are related by a proton transfer, are shown in Fig.…”

Trapping of an NiII Sulfide by a CoI Fulvene Complex

“…5,6 A number of late transition metal carbene (CR 2 2-), nitrene (NR 2-), nitride (N 3-), and phosphinidene (PR 2-) complexes have also been reported in recent years. [7][8][9][10][11][12][13][14][15][16][17][18] While a few of these complexes have been isolated, they tend to be extremely reactive, and often can only be observed spectroscopically. [19][20][21][22] Nonetheless, it is clear that synthetic chemists are now beginning to identify the combination of ligand requirements and synthetic procedures that can successfully generate late-metal ligand multiple bonds.…”