113860-02-9Relevant articles and documents
Hexahapto metal coordination to curved polyaromatic hydrocarbon surfaces: The first transition metal corannulene complex
Seiders,Baldridge,O'Connor,Siegel
, p. 4781 - 4782 (1997)
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Process for preparing cis alkenes and new catalysts therefor
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Page/Page column 10, (2010/02/05)
In a method for preparation of cis-alkenes (I) by hydrogenating conjugated, non-cyclic dienes (II) in presence of homogeneously soluble transition metal catalyst (III), the new feature is that (III) is prepared in situ. In a method for preparation of cis-alkenes (I) by hydrogenating conjugated, non-cyclic dienes (II) in presence of homogeneously soluble transition metal catalyst (III), the new feature is that (III) is prepared in situ. (III) are of formulae (IIIa) or (IIIb). M = in (IIIa), a transition metal of Group VI in zero oxidation state, or in (IIIb) a metal of Group VIII in +2 oxidation state, Group IX in +1 oxidation state or Group X in +2 oxidation state; L1 = polydentate neutral or anionic ligand; L2 and L3 = together a conjugated, non-cyclic diene ligand; L4 = monodentate neutral ligand; L5 = polydentate neutral ligand; X = anion; and n = 1 or 2. Independent claims are also included for the following: (1) transition metal complex (C) for stereoselective hydrogenation of conjugated dienes to cisoid compounds that comprises a central ruthenium(II), an eta5 ligand, a bidentate, non-cyclic conjugated diene ligand and optionally a non-coordinating counterion for electrical neutrality, provided that when the ligand is pentamethylcyclopentadienyl (CpMe5) and the diene is sorbic acid, then the counterion is not triflate (trifluoromethylsulfonate) nor the BARF anion; and (2) methods for preparing specific (C).
Molecular Engineering of Solid-State Materials: Organometallic Building Blocks
Fagan, Paul J.,Ward, Michael D.,Calabrese, Joseph C.
, p. 1698 - 1719 (2007/10/02)
The syntheses of the reagents *Ru(CH3CN)3>(+)(OTf(-)) (1) (Cp* = η-C5(CH3)5; OTf = CF3SO3) and *Ru(μ3-Cl)>4 (2) are reported.Reaction of 1 with aromatic hydrocarbons that are used as geometric templates allows the preparation of polycationic complexes with particular shapes and geometries of positive charge.Using 2>-1,4-cyclophane, the cylindrical rod-like complexes *Ru)2(η6,η6-2>-1,4-cyclophane)>(2+)(OTf(-))2, *Ru(2>-1,4-cyclophane)CoCp*>(3+)(OTf(-))3, and *Ru(η6,η6-2>-1,4-cyclophane)>2Ru>(4+)(OTf(-))4 have been synthesized.With triptycene as a template, a triangular trication isolated as the complex *Ru)3(η6,η6,η6-triptycene)>(3+)(OTf(-))3 can be prepared.Reaction of 1 with tetraphenylmethane, -silane, -germane, -stannane, and -plumbane results in formation of tetrahedral tetracations isolated as the complexes *Ru(η-C6H5)>4E>(4+)(OTf(-))4 (E = C, Si, Ge, Sn, Pb).The structure of *Ru(η-C6H5)>4Ge>(4+)(OTf(-))4 has been determined by a single-crystal X-ray analysis (monoclinic-b, P21/c (No. 14); a = 22.633 (3) Angstroem, b = 12.826 (2) Angstroem, c = 24.944 (3) Angstroem, β = 93.49 (1)deg, V = 7227.6 Angstroem3, Z = 4) and is compared to the structural parameters of the tetracations *Ru(η-C6H5)>4E>(4+) (E = C, Si).Reaction of 1 with hexakis(p-methoxyphenoxy)benzene yields *Ru(p-CH3O-η-C6H4-O)>6C6>(6+)(OTf(-))6.A single-crystal X-ray analysis of *Ru(p-CH3O-η-C6H4-O)>6C6>(OTf)6*6CH3NO2 (triclinic, P (No. 2); a = 15.784 (3) Angstroem, b = 16.539 (4) Angstroem, c = 17.817 (3) Angstroem, α = 65.47 (2)deg, β = 61.82 (2)deg, γ = 63.86 (3)deg, V = 3552.2 Angstroem3, Z = 1) shows that the hexacation contains an octahedral array of ruthenium atoms.With p-quaterphenyl and p-sexiphenyl, the reaction with 1 leads to formation of the tetracation *Ru)4(η6,η6,η6,η6-p-quaterphenyl)>(4+)(OTf(-))4 and hexacation *Ru)6(η6,η6,η6,η6,η6,η6-p-sexiphenyl)>(6+)(OTf(-))6, respectively.A single-crystal X-ray analysis of the complex *Ru)4(η6,η6,η6,η6-p-quaterphenyl)>(OTf)4 has been performed (triclinic, P (No. 2); a = 12.897 (3) Angstroem, b = 13.630 (2) Angstroem, c = 11.906 (2) Angstroem, α = 108.31 (1)deg, β = 107.39 (2)deg, γ = 100.38 (1)deg, V = 1807.3 Angstroem3, Z = 1).The potential use of these complexes for the rational control and preparation of solid-state molecular materials is discussed.
