{N,N-Bis[bis­(2,2,2-tri­fluoro­eth­oxy)phosphan­yl]methyl­amine-κ²P,P′}bis­(η⁵-cyclo­penta­dien­yl)titanium(II)

The title compound, [Ti(C₅H₅)₂(C₉H₁₁F₁₂NO₄P₂)], is a four-membered titanacycle obtained from the reaction of Cp₂Ti(η²-Me₃SiC₂SiMe₃) and CH₃N[P(OCH₂CF₃)₂]₂ {N,N-bis­[bis­(tri­fluoro­eth­oxy)phosphan­yl]methyl­amine, tfepma}. The Ti^II atom is coordinated by two cyclo­penta­dienyl (Cp) ligands and the chelating tfepma ligand in a strongly distorted tetra­hedral geometry. The mol­ecule is located on a mirror plane.

(μ₃-Hydrido)[μ₃-2-(tri­methyl­sil­yl)ethyl­idyne-κ³C¹:C¹:C¹]tetra­kis­[(η⁵-cyclo­penta­dien­yl)cobalt(II)]

In the title compound, [Co₄(C₅H₅)₄(μ₃-CCH₂SiMe₃)(μ₃-H)], the Co atoms form a distorted tetra­hedron with the ethyl­idyne moiety bridging three of the Co atoms as well as the hydrido ligand also bridging three of the Co atoms. The Co—Co bond lengths in the Co₄ tetrahedron vary from 2.3844 (4) to 2.4608 (4) Å. Each Co atom is additionally η⁵-bonded to a cyclopentadienyl (Cp) anion.