In this study we present a synthesis and conformational analysis of 1′-acetylferrocene amino acid derivatives of type Ac–Fn–CO–AA–Y (Fn=ferrocene-1,1-diyl; AA=Gly, Ala or Val; Y=OMe or NHMe) as a simple model for parallel β-helical peptides. Derivatives with only one amino acid adopt a red...

In this work, a dumbbell-shaped bi-acetylferrocene ethylenediamine complex, (AFc)2-en (AFc = acetylferrocene, en = ethylenediamine) was synthesized and its interaction with double-stranded DNA (dsDNA) was comprehensively studied by electrochemical methods on a gold electrode. The experimental re...

Influence of biodiesel-diesel fuel blends with acetylferrocene and palladium based additives on diesel engine performance and emissions were studied experimentally. The additives were dosed into the blend fuels as 25 ppm. Bis-[N,N-dimethyl-N′-2-chlorobenzoylthioureato] palladium (II), PdL2 was ...

Zeolites with different structure and concentration of acid sites were investigated in a liquid phase acylation of ferrocene with acetic anhydride. It was found that the conversion of ferrocene increased in the order: medium pore zeolites

In this work, the solubilities of ferrocene and acetylferrocene in supercritical carbon dioxide (scCO2) were measured using an analytical method in a quasi-flow apparatus. High-performance liquid chromatography was applied through an online sampling procedure to determine the concentration of fe...

ESR spectra of liquid and solid solutions of Cr(C6H6)2I have been measured. Even in solid solution the spectra show a well resolved proton hyperfine structure which is explained by rotation of the Cr(C6H6)+2 cation around its main axis. An analysis of the 53Cr hyperfine coupling constants indica...

Infra-red spectra were observed for dibenzenechromium (I) iodide, [Cr(C6H6)2]I, and ditoluenechromium (I) iodide, [Cr(C6H5CH3)2]I, in the region of 300–4000 cm−1, and vibrational assignments were made for their main absorption bands.The values of the CH out-of-plane force constants were calcu...

The cathodic reduction in DMSO solutions of six aromatic nitriles of the benzene, and eight dibenzenechromium cyano derivatives have been studied by use of the rotating disk and rotating ring-disk electrodes. A substantial change in the character of the polarization curves of π-complexes in com...

Normal coordinate analysis of molecular vibrations was performed for (C6H6)2Cr assuming D6h symmetry. Some frequency shifts from free to complexed benzene are explained by kinematic couplings without violation of the force field for ligand vibrations. Calculated mean amplitudes from the final ha...

The EPR spectra of Cr(C6H6)2+ cations on silica gel and in Y-type zeolite were studied. The spectra show a well resolved proton hyperfine structure due to interactions between the unpaired electron and twelve equivalent protons of the benzene rings. An analysis of the 53Cr hyperfine structure in...

Dibenzenechromium is metalated by n-butyllithium in presence of TMEDA. The extent and orientation of metalation were investigated by mass spectrometric analysis of the products after quenching with D2O. A lithium substituent on dibenzenechromium strongly activates the molecule for further metala...

Thermodynamic studies of the equilibrium in the direct-synthesis reaction of dibenzenechromium from benzene and chromium were carried out. The reaction of gaseous chromium with the solid ligand is shown to be the most probable mechanism of the process. The thermodynamic and kinetic stabilities o...

The possibility of having a metallocene species, in which metal atoms as well as the corresponding aromatic rings appear within a fullerene sphere, is analyzed from a theoretical point of view. The complexes were simulated by joining a Cr(C6H6) fragment to the inner wall of a C116 (Th) fullerene...

Electrooxidation of methanol have been studied on the poly(vinylferrocene) (PVF) coated Pt substrate electrode and uncoated Pt substrate electrode in aqueous HClO4 solutions and the results have been compared. The effects of various parameters such as polymeric films thickness, potential scan ra...

Photolysis of hexacarbonylmetal(0) complexes of the Group 6 elements in the presence of vinylferrocene in an n-hexane solution at −15 °C yields pentacarbonyl (η2-vinylferrocene)metal(0) complexes as the sole photo-substitution product, different from the general reaction pattern observed for t...

Lithium amides react with vinylferrocene in the presence of TMEDA to provide the corresponding (2-aminoethyl)ferrocenes in good to excellent yields. A range of secondary amines can be employed in this amidolithiation reaction, with cyclic derivatives affording particularly good yields of the 2-a...

This paper proposes a very simple procedure for preparing a biocompatible sensor based on a protein (bovine serum albumin, BSA), enzyme and vinylferrocene (VF) composite membrane modified electrode. The membrane was prepared simply by first casting vinylferrocene and then coating it with BSA and...

In this study, a new uric acid biosensor was constructed based on ferrocene containing polymer poly(vinylferrocene) (PVF), carboxylated multiwalled carbon nanotubes (c-MWCNT) and gelatin (GEL) modified glassy carbon electrode (GCE). Uricase enzyme (UOx) was immobilized covalently through N-ethyl...

A series of vinylferrocene–styrene copolymer latexes having different vinylferrocene to styrene ratios were prepared via a free radical mechanism. Theoretical DLVO calculations have been used to model the aggregation behaviour of the polymer latexes with respect to a change in particle zeta pot...

Aqueous suspensions of micrometer-sized latex particles coated with poly(vinylferrocene) showed voltammetric responses of poly(vinylferrocene) at the nitrobenzene(NB)-coated pyrolytic graphite electrode (PGE), although these were electroinactive at conventional metal electrodes. The whole proces...