A cyclometalated ruthenium complex with 6-(ortho-methoxyphenyl)-2,2'-bipyridine (MeO-L) and tricarboxyterpyridine (tpy(CO2H)3) (RuCC·PF6) was prepared, characterized, and evaluated as a dye for dye-sensitized solar cells (DSSCs). The first oxidation and reduction potentials are +0.99 V and...

The hydrogenolysis of carbon tetrachloride to chloroform, and of trichlorofluoromethane to hydrodichlorofluoromethane, are catalysed by the complexes RuCl2(PPh3)3 and RuCl2(dppe)2. The conversion of carbon tetrachloride into chloroform is more complete than the conversion of trichlorofluorometha...

The potential application of palladium-ruthenium composite membranes to the separation of hydrogen from chlorosilane gases in silicon-based industries was investigated. Palladium and palladium-ruthenium composite membranes were deposited on pretreated porous stainless steel substrates by electro...

The reactions of trichloromethanesulfonyl chloride with trimethylsilyl enol ethers of acetophenones in the presence of a ruthenium(II) phosphine complex gave 1-aryl-3,3-dichloropropen-1-one together with α-chloroacetophenones. The product ratio depended on the substituent on the aromatic ring o...

The oxidative cleavage of alkenes was performed using ruthenium triazole -arene complexes immobilized on mesoporous silica materials. These silica-organometallic hybrid materials were found to show enhanced activity when compared to conventional homogeneous systems even when operating at a relat...

Fourier transform infrared spectra of MnO4− anions isomorphously isolated in potassium perchlorate matrices were recorded at room and low temperature (LT, ∼100 K). On the basis of the detected second-order vibrational transitions involving the dopant species ν3 mode components, anharmonicity c...

The infra-red spectra of 9 hydrated permanganates and of 10 anhydrous permanganates have been measured from 2000 to 400 cm−1. The identity of the samples was confirmed by chemical analysis and by X-ray powder diffraction. The results are discussed in terms of the site symmetry of the permanganat...

The thermal decomposition of potassium, rubidium and caesium permanganates were investigated using TG and DTA techniques in atmospheres of air, oxygen, nitrogen and carbon dioxide. The studies were extended to cover related compounds, namely K2MnO4 and NaKMnO4. It is proposed that the two decomp...

The thermal decomposition of RbMnO4, pre-irradiated in the spent fuel facility at Harwell and in a hollow uranium slug in BEPO, has been investigated in the temperature range 195°–245°. The results for γ-irradiated RbMnO4 are similar to those for irradiated AgMnO4 and KMnO4 and the mechanism...

We report a study of the thermal decomposition of rubidium permanganate. Isothermal kinetic measurements of the evolved oxygen produced showed a sigmoid fractional reaction α—time relation with a rate maximum at α ≈ 0.65. Data fit the power law α13= kt in the range 0.04

The synthesis of salts of the complex cations [Rh(BigH+)2X2]+, where BigH  C2H7N5; X = Cl−, Br−, I− NCS−, N3− or NO2− described. All are diamagnetic and octahedral. The dithiocyanato-, diazido- and dinitro- species have been characterised by i.r. spectra. Chemical and physical evidence indicat...

RésuméLa polymérisation de l'isoprène a été provoquée par le nitrate de Rhodium dihydraté, le solvant étant un mélange équimolaire de benzène et d'alcool allylique. La polymérisation démarre dès l'introduction du catalyseur et l'on observe une polymérisation t...

New complexes of the composition: {Fe3O(OOCR1COO)3}+ and {Fe3O(R2COO)6}+, where R1 = –(CH2)3–Si(CH3)2–O–Si(CH3)2–(CH2)3– or –(CH2)8–COO–CH2–Si(CH3)2–O–Si(CH3)2–CH2–COO–(CH2)8–; R2 = Si(CH3)3–O–Si(CH3)2–CH2–COO–(CH2)8–, were synthesized by direct synthesis using siloxane car...

The synthesis and characterization, chiefly as salts of the anions [X(ONO2)2]− (X = H+ or Ag+) (by analysis, X-ray powder photography, vibrational spectra and thermogravimetry) of adducts of the nitrates trans-[M(L)4X2](NO3) (M =Rh or Ir; L = pyridine, perdeuteriopyridine or 4-methylpyridine; X ...

RésuméLa polymérisation de l'isoprène a été provoquée par le nitrate de rhodium (III) dihydraté, le solvant étant un mélange équimolaire de benzène et d'alcool allylique. La polymérisation démarre dès l'introduction du catalyseur et l'on observe une polymérisa...

A novel amphiphilic chitosan derivative, acryloyl chitosan (AcCs), was synthesized by a homogeneous reaction of chitosan and acryloyl chloride using methanesulfonic acid as solvent and catalyst. The concentrated solutions of AcCs/acrylic acid were investigated by polarized optical microscopy (PO...

1. If solutions which contain XXX periodic acid and sulphuric acid are boiled, permanganic acid is found in the XXX concentration of permanganate in the steam is negligibly small until the sulphuric acid concentration of the solution exceeds about 6 M. It is at a maximum when the sulphuric acid ...

The reduction of MnO4− in nitric, perchloric and sulphuric acids on a bubbling platinum electrode and the influence of the acid anion on the behaviour of the permanganic ion in the presence of Mn(II) were studied. The rôle of Mn(II) and Mn (III) in the permanganate reduction process was fully in...

Permanganic etching exposes lamellae within a variety of crystalline polymers. It is frequently observed that certain lamellar populations and other regions are removed preferentially by the etchant. This selectivity has been studied quantitatively by using 5 μm sections of a linear polyethylen...

The technique of permanganic etching as already published reveals spherulitic structure and lamellar detail in polyolefines, and has recently been modified for application to isotactic polystyrene. For application to poly(aryl-ether-ether-ketone), or PEEK, neither variant is suitable, but a new ...