1008. Triphenylgermylplatinum complexes

Cross, Ronald J.; Glockling, F.

doi:10.1039/jr9650005422

Cited by 37 publications

(14 citation statements)

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“…We therefore assign these absorption bands to the Ge–H and Ge–D stretching vibrations. The band for 2 appears at a slightly higher frequency than the band for the Ge–H stretching vibration in [Ph 3 GeH] (2037 cm –1 ) 15…”

Section: Resultsmentioning

confidence: 92%

[Ge(H)(2‐C₆H₄PPh₂)₃] as Ligand Precursor at Ruthenium: Formation and Reactivity of [Ru(Cl){Ge(2‐C₆H₄PPh₂)₃}]

2014

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Section: Resultsmentioning

confidence: 92%

[Ge(H)(2‐C₆H₄PPh₂)₃] as Ligand Precursor at Ruthenium: Formation and Reactivity of [Ru(Cl){Ge(2‐C₆H₄PPh₂)₃}]

2014

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“…The interaction of metal complexes with primary and secondary alcohol usually results in metal hydride formation. 34 In these reactions, it is assumed that Scheme 5. conversion into a metal alkoxide complex occurs 35,36 (rarely isolable 37 ), along with a b-hydrogen transfer from the alkoxide ligand to the metal atom. 34,36 Accordingly, we suggest that complex A formed in step 2 reacts with the alcohol BzOH to give an alkoxide B and HCl (see Scheme 4).…”

Section: Mechanism Of Ring-opening Of E-caprolactonementioning

confidence: 99%

Ring‐opening polymerization of ϵ‐caprolactone initiated with different ruthenium derivatives: Kinetics and mechanism studies

Mata‐Mata

Gutiérrez

Paz-Sandoval

et al. 2006

J. Polym. Sci. A Polym. Chem.

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End‐functionalized polyesters have been synthesized by ring‐opening polymerization (ROP) of ϵ‐caprolactone (CL) initiated with five different ruthenium derivatives in the presence of a series of alcohols as transfer agents. Mechanistic studies were performed for ROP of CL with RuCl2(PPh3)3 (I), TpRuCl(PPh3)2 (II), and TpRuCl(PHPh2)(PPh3) (III) as catalysts in the presence or absence of benzyl alcohol (BzOH). Obtained molecular weights are proportional to CL/BzOH ratio, but there is not a direct relationship with CL/ruthenium complex ratios. 1H and 13C NMR spectroscopy revealed the existence of benzyl ester end‐groups. Catalysis involves (a) dissociation of ruthenium complexes, (b) coordination of the lactone CL, (c) coordination of the BzOH with the formation of a metal alkoxide, (d) transfer from the alkoxyl ligand to the coordinated lactone, and (e) ring‐opening of CL by oxygen‐acyl bond cleavage. The proposed mechanism is supported by 1H, 13C, and 31P NMR, gel permeation chromatography (GPC), and MALDI‐TOF analysis of the polymers. © 2006 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 44: 6926–6942, 2006

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“…After one day a yellow solid separated. The filtrate was taken to dryness on a rotating evaporator leaving a white oily solid which was recrystallized from alcohol to give cis-(1,2-bisdiphenylphosphinoethane) bistriphenylplumby lplatinum (11) , m.p. 255-260" (decomp.)…”

Section: Methodsmentioning

confidence: 99%

“…(c) With hydrogen chloride. A solution of trans-bistriethylphosphinebistriphenylplumbylplatinum (11) in benzene was saturated with anhydrous hydrogen chloride at room temperature. Lead chloride precipitated rapidly and was centrifuged off.…”

Section: Methodsmentioning

confidence: 99%

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Platinum–lead bonded complexes

Deganello¹,

Carturan²,

Belluco³

1968

J. Chem. Soc. A

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The new platinum-lead bonded complexes trans- [PtL,(PbPh,),] (I) (L = PEt,.AsEt,) prepared by the reaction of cisor trans-[PtL,CI,] with LiPbPh, are described. Such complexes undergo platinum-lead bond cleavage with various reactants. Thus, potassium cyanide in ethanol gives K,[Pt(CN),] and (C5H6)sPb,. Bromine in CCI, affords trans-[Pt(PEt,),Br,] and (C6H5),PbBr2. Hydrogen chloride in benzene leads to trans-[Pt(PEt,),CI,] and PbCI,. Homogeneous hydrogenolysis gives an oil tentatively formulated as trans-[Pt( PEt3)2(PbPh3) HI. The complexes undergo neutral ligand exchange with Ph,P.CH,*CH,PPh,(diphos) to give cis-[Pt(diphos) (PbPh,),].The above metal-metal bond cleavage reactions are interpreted in terms of primary addition to platinum leading to six-co-ordinated intermediates. are discussed in relation to similar systems. 1.r. spectra of the new products are reported.COMPLEXES having a bond between a transition metal and a Group IVB metal are of interest theoretically and for their bearing on homogeneous catalysis. Many second-and third-row transition-metal ions with d6 and d8 electronic configuration react with Group IVB metal halides to give heteronuclear complexes containing a

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1008. Triphenylgermylplatinum complexes

Cited by 37 publications

References 0 publications

[Ge(H)(2‐C₆H₄PPh₂)₃] as Ligand Precursor at Ruthenium: Formation and Reactivity of [Ru(Cl){Ge(2‐C₆H₄PPh₂)₃}]

[Ge(H)(2‐C₆H₄PPh₂)₃] as Ligand Precursor at Ruthenium: Formation and Reactivity of [Ru(Cl){Ge(2‐C₆H₄PPh₂)₃}]

Ring‐opening polymerization of ϵ‐caprolactone initiated with different ruthenium derivatives: Kinetics and mechanism studies

Platinum–lead bonded complexes

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1008. Triphenylgermylplatinum complexes

Cited by 37 publications

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[Ge(H)(2‐C6H4PPh2)3] as Ligand Precursor at Ruthenium: Formation and Reactivity of [Ru(Cl){Ge(2‐C6H4PPh2)3}]

[Ge(H)(2‐C6H4PPh2)3] as Ligand Precursor at Ruthenium: Formation and Reactivity of [Ru(Cl){Ge(2‐C6H4PPh2)3}]

Ring‐opening polymerization of ϵ‐caprolactone initiated with different ruthenium derivatives: Kinetics and mechanism studies

Platinum–lead bonded complexes

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[Ge(H)(2‐C₆H₄PPh₂)₃] as Ligand Precursor at Ruthenium: Formation and Reactivity of [Ru(Cl){Ge(2‐C₆H₄PPh₂)₃}]

[Ge(H)(2‐C₆H₄PPh₂)₃] as Ligand Precursor at Ruthenium: Formation and Reactivity of [Ru(Cl){Ge(2‐C₆H₄PPh₂)₃}]