Syntheses, characterizations, and crystal structures of β-diketiminato compounds of pentafluorophenyl group 12 derivatives, HC{[C(Me)N(C6H3-2,6-i-Pr2)]2}MC6F5 (M = Zn, Cd)

The reactions of H2C[C(Me)N(C6H3-2,6-i-Pr-2)](2) ((DPP)(2)NacNacH) and Zn(C6F5)(2) . 2 EtCN or Cd(C6F5)(2) . 2 MeCN in a molar ratio of approximately 1:1 selectively gave the derivatives (DPP)(2)NacNacMC(6)F(5) (M = Zn, Cd) in excellent yields. No reaction was observed between (DPP)(2)NacNacH and Hg(C6F5)(2) under similar conditions. Reactions with Hg(C6F5)OCOMe yielded the products of dismutation, Hg(C6F5)(2) and Hg(OCOMe)(2).(DPP)(2)NacNacZnC(6)F(5) crystallises as a 1:1 adduct with THF with two independent molecules per unit cell (triclinic, P (1) over bar (no. 2)). The zinc atom is tetrahedrally surrounded by the chelating ligand, the pentafluorophenyl group and one THF molecule. A similar situation is found in the 1:1 adduct of (DPP)(2)NacNacCdC(6)F(5) and DMF (monoclinic, P2(1)/n (no. 14)), while in the donor-free compound (CDCl3 and H2O co-crystallize) the cadmium atom is nearly ideally trigonal planar co-ordinated (orthorhombic, Pbnm (no. 62)).