An NMR study on ethane and five isotopomers dissolved in the nematic liquid crystal Merck ZLI 1132 is performed. A consistent set of dipolar and quadrupolar couplings is obtained. The dipolar couplings are corrected for harmonic vibrational effects, while the contribution from the torsional motion is incorporated classically. The corrected dipolar couplings cannot be understood in terms of a re...

based on driving force for crystallization of one-component gas hydrate, in this report an expression for the supersaturation for crystallization of multicomponent gas hydrate is derived. expressions for the supersaturation are obtained in isothermal and isobaric regimes. the results obtained are applied to the crystallization of hydrates of mixtures of methane plus ethane and can apply to othe...

The oxidative dehydrogenation (ODH) of ethane on alumina-supported vanadia was investigated with the aim of understanding the effects of lattice oxygen and vanadium oxidation state on the catalyst ODH activity and ethene selectivity. Transient-response experiments were carried out with both a fully oxidized sample of 10 wt% VO(x)/Al(2)O(3) (7 V nm(-2)) and a sample that had been partially reduc...

The thermal conductivity, specific heat, and specific volume of the orientational glass former 1,1,2-trichloro-1,2,2-trifluoroethane (CCl2F-CClF2, F-113) have been measured under equilibrium pressure within the low-temperature range, showing thermodynamic anomalies at ca. 120, 72, and 20 K. The results are discussed together with those pertaining to the structurally related 1,1,2,2-tetrachloro-...

Facile ligand substitution is observed when the ruthenium chloride complex [Ru(η(5)-C(9)H(7))Cl(dppe)] (dppe is diphenylphosphanyl ethane) is treated with NaN(3) in refluxing ethanol, yielding the title compound, [Ru(η(5)-C(9)H(7))(N(3))(dppe)] or [Ru(C(9)H(7))(N(3))(C(26)H(24)P(2))]. The Ru(II) atom has a typical piano-stool coordination. The Ru-P bond lengths are 2.284 (2) and 2.235 (2) Å. NM...

Single crystal catalysts have been used to investigate ethane hydrogenolysis. The apparatus used in these studies allows for catalyst preparation and surface characterization in ultrahigh vacuum (UHV) with an in vacua transfer to a second UHV chamber designed for high pressure kinetic studies. Kinetic measurements on single crystals of nickel show the hydrogenolysis of ethane to be “structure s...

1,1’-(Ethane-1,2-diyl)dipyridinium bistribromide (EDPBT) was used as a chemoselective and effective organocatalyst for the silylation of hydroxyl groups as well as desilylation of trimethylsilyl ethers under mild conditions at room temperature with good to excellent yields.