Carbon­yl{3,3′-di-tert-butyl-5,5′-dimeth­oxy-2,2′-bis­[(4,4,5,5-tetra­methyl-1,3,2-dioxaphospho­lan-2-yl)­oxy]biphenyl-κ²P,P′}hydrido(triphenyl­phosphane-κP)rhodium(I) diethyl ether tris­olvate

In the title compound, [RhH(C₇₄H₆₈O₈P₂)(C₁₈H₁₅P)(CO)]·3C₄H₁₀O, the CHP₃ coordination set at the Rh^I ion is arranged in a distorted trigonal–bipyramidal geometry with the P atoms adopting equatorial coordination sites and the C atom of the carbonyl ligand as well as the H atom adopting the axial sites. The asymmetric unit contains two very similar mol­ecules of the rhodium complex, two half-occupied diethyl ether mol­ecules and further diethyl ether solvent mol­ecules which could not be modelled successfully. Therefore contributions of the latter were removed from the diffraction data using the SQUEEZE procedure in PLATON [Spek (2009). Acta Cryst. D65, 148–155].

{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.