16841-99-9Relevant articles and documents
Heterometallic complexes with borole ligands
Braunstein, Pierre,Englert, Ulli,Herberich, Gerhard E.,Neuschuetz, Mark,Schmidt, Martin U.
, p. 2807 - 2812 (1999)
The borole-containing carbonylmetalates [(η-C4H4BPh)Re(CO)3]- ([Re]-) and [(η-C4H4BPh)Fe(CO)2H]- ([Fe]-) were used for the synthesis of heterometallic complexes with Re-Hg, Re-Cu, Re-Ag, Re-Au or Fe-Pt metal-metal bonds, respectively. The complex [Re]-Hg-[Re] 1 was characterized by X-ray diffraction and contains a linear metal chain. In the presence of HgCl2, redistribution reactions were observed, leading to [Re]-Hg-Cl 2 which was independently prepared from [Re]- and an excess of HgCl2. The reaction of [Fe]- with trans-[PtBr2(4-Mepy)2] (4-Mepy = 4-methylpyridine) afforded the trinuclear complex trans-[Pt[Fe]2(4-Mepy)2] 6 which was characterized by X-ray diffraction and contains two hydrido ligands which bridge the Fe-Pt bonds.
Synthesis of TiRu2 heterobimetallic and TiRuM (M = Rh, Ir, Pd, Pt) heterotrimetallic sulfido clusters from a hydrosulfido-bridged titanium-ruthenium complex
Kuwata,Kabashima,Sugiyama,Ishii,Hidai
, p. 2034 - 2040 (2001)
Treatment of the hydrosulfido-bridged titanium-ruthenium heterobimetallic complex [Cp2Ti(μ2-SH)2RuCl (η5-C5Me5)] (1; Cp = η5-C5H5) with an excess of triethylamine followed by addition of [RuCl2(PPh3)3] and [{(cod)M}2-(μ2-Cl)2] (M = Rh, Ir; cod = 1,5-cyclooctadiene) led to the formation of the TiRu2 and TiRuM mixed-metal sulfido clusters [(CpTi){(η5-C5Me5)Ru}{Ru (PPh3)2}(μ3-S)2 (μ2-Cl)2] (3) and [(CpTi){η5-C5Me5)Ru}{M(cod)}- (μ3-S)2(μ2-Cl)] (M = Rh (4a), Ir (4b)), respectively. On the other hand, the reactions of 1 with [M(PPh3)4] (M = Pd, Pt) afforded the TiRuM trinuclear clusters [(CpTiCl){(η5-C5Me5)Ru}{M (PPh3)2}(μ3-S)(μ2-S) (μ2-H)] (M = Pd (5a), Pt (5b)) with an unprecedented M3(μ3-S)(μ2-S) core. The detailed structures of these triangular clusters 3-5 have been determined by X-ray crystallography. Crystal data: 3, triclinic, P1, a = 12.448(4) A, b = 12.773-(4) A, c = 17.270(4) A, α = 100. 16(2)°, β = 99.93(2)°, γ = 114.11(3)°, V = 2373(1) A3, Ζ = 2; 4a, triclinic, P1, a = 7.714(2) A, b = 11.598(3) A, c = 14.802(4) A, α = 80.46(2)°, β = 82.53(2)°, γ = 71.47(2)°, V = 1234.0(6) A3, Z = 2; 4b, triclinic, P1, a = 7.729(1) A, b = 11.577(2) A, c = 14.766(3) A, α = 80.14(1)°, β = 82.71(1)°, γ = 71.55(1)°, V = 1231.1(4) A3, Ζ = 2; 5a, monoclinic, P21/c, a = 11.259(4) A, b = 16.438(4) A, c = 26.092(5) A, β = 102.23(3)°, V = 4719(2) A3, Z = 4; 5b, monoclinic, P21/n, a = 11.369(2) A, b = 16.207-(3) A, c = 26.116(2) A, β = 102.29(1)°, V = 4701(1) A3, Ζ = 4.
Diplatinum complexes: Chemoselective reactions of the μ-orthometalated, metal-metal bonded complex
Archambault, Christine,Bender, Robert,Dusausoy, Yves,Welter, Richard,Braunstein, Pierre
, p. 545 - 552 (2013/06/26)
In order to investigate further the chemoselectivity of reactions involving the μ-orthometalated, metal-metal bonded dinuclear Pt(I) complex [Pt 2(μ-o-C6H4PPh2)(μ-PPh 2)(PPh3)2](Pt-Pt) (1), it was reacted with HCl and HI using various stoichiometries. The first step was the breaking of the metal-carbon bond and the formation of C-H and Pt-X bonds. When a 1:1 ratio was used, the complexes [Pt2X(μ-PPh2)(PPh3) 3](Pt-Pt) (2, X = Cl; 3, X = I) have been obtained but the use of a 2:1 ratio resulted instead in the formation of the complexes [Pt 2(μ-H)(μ-PPh2)X2(PPh3) 2](Pt-Pt) (4, X = Cl; 6, X = I). The latter transformed into [Pt 2(μ-X)(μ-PPh2)X2(PPh3) 2] (5, X = Cl; 7, X = I) in the presence of an additional equivalent of HX. The cis,cis- and cis,trans-isomers of 7 were also obtained by oxidation of 3 with one equivalent of iodine. Whereas compounds 4, cis,cis-5, and cis,trans-7 have been characterized in solution, the complexes 2·1/2C7H8, 3, 6 and cis,cis-7 have been isolated and structurally characterized by X-ray diffraction.
Transition metal complexes incorporating the BF2 ligand formed by oxidative addition of the B-B bond in B2F4
Lu, Norman,Norman, Nicholas C.,Guy Orpen,Quayle, Michael J.,Timms, Peter L.,Whittell, George R.
, p. 4032 - 4037 (2007/10/03)
The reactions between B2F4 and the platinum and iridium complexes [Pt(PPh3)2(η-C2H4)], [Pt(dppb)(r)-C2H4)] [dppb = l,4-bis(diphenylphosphino)butane] and trans-[IrCl(CO)(PPh3)2] afforded the difluoroboryl complexes cis-[Pt(BF2)2(PPh3)2], cis-[Pt(BF2)2(dppb)] and fac-[Ir(BF2)3(CO)(PPh3)2] respectively all of which have been characterised by X-ray crystallography. The isoelectronic platinum dppb nitrito complex cw-[Pt(NO2)2(dppb)] has also been prepared and structurally characterised. The Royal Society of Chemistry 2000.
