A series of anils of benzoylferrocene were synthesized and characterized to be a mixture of trans and cis isomers in solution, the reaction of which with mercuric acetate gave regioselectively ortho-mercurated products in high yields. On the basis of the NMR data, the related stereochemistry for...

Copoly[2,2′-bis[1,1′-ferrocene]benzoylylene/3,3,5,5-tetramethyl-4-oxa-3,5-disila-1,7-heptanylene] (III) was synthesized by two approaches. High molecular weight III was obtained by an acid catalyzed equilibrium condensation of 1,1′-bis[1-(3′,3′,5′,5′-tetramethyl-4-oxa-3,5-disilahexyl)benz...

A benzoylferrocene modified multi-wall carbon nanotube paste electrode for the measurement of methionine (MET) concentration is described. MET electrochemical response characteristics of the modified electrode in a phosphate buffer solution of pH 7.0 were investigated by cyclic voltammetry, squa...

A series of benzoylferrocene derivatives were synthesized and their third-order nonlinear optical (NLO) properties were evaluated in N,N-dimethyl-formamide at 800 nm using femtosecond degenerate four-wave mixing. The third-order NLO susceptibilities of synthesized compounds were 3.065–7.859 × ...

The homoleptic tris(substituted cyclopentadienyl)lanthanide(III) complexes [LnCpR3] (Ln=La (1), Ce (2), Pr (3), Nd (4), Sm (5), Gd (6), Tb (7), Dy (8), Er (9), Tm (10) and Yb (11)], [NdCpt3] (12), [CeCptt3] (13) and [NdCptt3] (14) [CpR=η5-C5H4{CH(SiMe3)2, Cpt=η5-C5H4(SiMe2But), Cptt=η5-C5H3(S...

The reaction between LnI3(THF)3.5 and 2 equiv. of {(Me3Si)2(Me2MeOSi)C}K (1) in THF at room temperature yields only the mono-substituted products {(Me3Si)2(Me2MeOSi)C}LnI2(THF)2 [Ln = Y (5), Tm (6)]; under more forcing conditions decomposition occurs. In contrast, the metathesis reaction between...

Three new unsolvated organometallic complexes of dysprosium(III) with very sterically hindered π-ligands have been synthesized and structurally characterised: the monomeric bis[η5-(1,2,4-tris-trimethylsilylcyclopentadienyl)]iododysprosium (1b), bis[η5-(1,4-bis-t-butyl-2,3-dimethylphospholyl)]...

Homoleptic cyclopentadienyl derivatives of the early transition metals and lanthanides that have been synthesized include Cp4M (M = Ti, Zr, Ce, Hf, Th), Cp3M (M = Sc, Y, most lanthanides, Ti, Zr, Hf, Th), and Cp2M (M = Ti, V). Density functional theory shows that the Cp4M structures with unusual...

A tris(hydroxymethyl)aminomethane-modified polysiloxane has previously been investigated for surface properties and valuable practical applications have been proposed, including nanoparticle stabilization, complexing of 3d metals, micellar solubilization of drugs and water dispersion of metal ox...

The synthesis and characterization of bis- and monocyclopentadienyl lanthanide [(S)-Cp′]2Lnl (Ln  Sm, 3; Ln  La, 4) and (S)-Cp′Lnl2(THF)R, (Ln  Sm, n = 3, 5; Ln  La, n = 2, 6) coordinated by an asymmetric cyclopentadienyl ligand (Cp′ = C5H2CH2CH(CH3)OCH2Ph) have been carried out. Vari...

In this study, we investigated the characteristics of various lanthanum hafnium oxide (LHO) films with different lanthanum (La) concentrations deposited by an electron cyclotron resonance plasma-enhanced atomic layer deposition (ECR-ALD). Tris(isopropyl-cyclopentadienyl)lanthanum (La(iPrCp)3) an...

AbsaactAmine elimination between rare-earth metal tris(amide) complexes Ln [N(SiHMe2)2]3 (THF)x and 1 equiv. of pyrrolyl-substituted cyclopentadienyl ligand C4H4NSiMe2C5Me4H was investigated. Reaction of C4H4NSiMe2C5Me4H and Ln [N(SiHMe2)2]3 (THF)x with small metals afforded the half-sandwich ra...

Use of the bulky cyclopentadienyl ligand [η5-C5H2(SiMe3)3-1,2,4]− (Cp‴) allows for the isolation of monomeric, mono-ring lanthanide species. As previously reported, (Cp‴)K reacts with LaI3(THF)4 (THF=tetrahydrofuran) in THF/pyridine to form the mono-ring complex (Cp‴)LaI2(py)3 (1) (py=pyridine)...

The lanthanide borohydrides [Ln(BH4)3(THF)n] [Ln = La, n = 4 (1); Ln = Ce, n = 3.5] were treated with the substituted cyclopentadienyl potassium transfer agents KCptt (Cptt = C5H3tBu2-1,3), KCpttt (Cpttt = C5H2tBu3-1,2,4) and KCp′′′ (Cp′′′ = C5H2(SiMe3)3-1,2,4) in various reaction conditio...

The one-pot reaction of HoCl3 with C5H6 and sodium (1 : 5 : 1 molar ratio) in THF resulted in the formation of the compound η5-CpHoCl2·3THF (Cp = C5H5), which was characterized by elemental analysis, IR and MS spectra, and X-ray crystallography, showing that it is monomeric in both the vapour ...

Acetylferrocene oxime was dilithiated with excess lithium diisopropylamide and the resulting C(α),O-dilithiated oxime was condensed at the carbanion-type center with aromatic esters to yield C-acylated intermediates that were quenched and acid-cyclined to the (5-aryl-3-isoxazolyl)-ferrocenes (i...

Five thiosemicarbazones HLn=Fc(Me)C(2)N(3)N(2)(H)C(1)(S)N(1)R1R2 (Fc=ferrocenyl) were prepared by condensing acetylferrocene with thiosemicarbazide or 4-substituted thiosemicarbazides: acetylferrocene thiosemicarbazone (HL1), acetylferrocene 1N-methylthiosemicarbazone (HL2), acetylferroc...

The coordination complexes of acetylferrocene-m-nitrobenzoyl hydrazone(HL) with lanthanide elements, LnL3 (where Ln = lanthanide), have been prepared by the reaction of HL with the metal(III) chlorides in acetonitrile. The data of elemental analyses, IR, UV, NMR, molar conductance, TG and DTA sh...

The chelates, Ln(HL)2Cl3·nH2O of acetylferrocene benzoylhydrazone with 15 lanthanide(III) metals have been prepared and characterized by elemental analysis, IR, UV, molar conductance, TG and DTA. It was found that the ligand coordinates to the central ions in the keto form, and some chloride io...

The electrochemical kinetics of electrocatalytic oxidation of N-acetyl-l-cysteine (NAC) by acetylferrocene (AFc) at a glassy carbon electrode (GCE) in 0.2 M Na2SO4 aqueous solution has been studied by cyclic voltammetry. Although NAC itself showed a very poor electrochemical response at GCE, the...