Photoluminescence has been observed from high surface area alkaline earth oxides with exciting light of a much lower frequency than that expected from the band gaps of the bulk oxides. This luminescence can be quenched by ...

2’-Hydroxy-N-methy]-4-stilbazolium iodide (IIa), its 5'-chloro-(lIc) and 5'-nitro-(IIb) derivatives arc strongly adsorbed at the surface of the dropping mercury electrode (d.m.e.). 5'-Methoxy-2- hydroxy-lV-methyl'4-stilbazoliuin ...

Heats of adsorption q{8), sticking probabilities and temperature programmed desorption spectra are reported for the adsorption of H2 onto clean wire surfaces of Pd, all as functions of coverage 0. Data, principally from ...

Zeolites MgNaX and CaNaX with varying concentrations of NaL Mg2+ and Ca2+ were prepared from zeolite NaX. Adsorption isotherms of ethane and ethylene were measured on these zeolites at different temperatures, and the ...

The decomposition of hydrogen peroxide catalysed by quatcrpyridineiron(ni) complex ions has been studied within the pH range 6.5-8. The reaction obeys total third-order kinetics with a partial order of two with respect to ...

3-Methylbut-1-ene has been photosensitized by Hg(63P1) atoms in the gas phase at 24±1 °C, producing both vibrationally excited 3-methylbuta-1,2-diyl and 2-methylbuta-1,3-diyl biradicals in the triplet state. The pressure ...

The products obtained by partial chemical reduction of an electrodeposited y-manganese dioxide have been studied by thermal analysis in an oxygen environment between room temperature and 725 K. Weight loss in the temperature ...

The isothermal vectorial transport properties of zinc chloride (conductance, transport number and salt diffusion coefficients) have been measured over the concentration range 0.1–3.5 mol dm–3 at 298.15 K. These data have ...

An investigation of the kinetics of the hydrogenolysis reaction of aliphatic aldehydes on Ni–SiO2 by stopped-flow chromatography is described and the rate plots fitted to theoretical equations which reveal that the reaction ...