Now showing items 181-190 of 204
Aniline hydrogenolysis on nickel: effects of surface hydrogen and surface structure
(Baltzer Science Publishers, Baarn/Kluwer Academic Publishers; J.C. Baltzer AG, Science Publishers ; Springer Science+Business Media, 1995-09)
Fluorescence yield near-edge spectroscopy (FYNES) above the carbon K edge and temperature programmed reaction spectroscopy (TPRS) have been used as the methods for characterizing the reactivity and structure of adsorbed ...
Linear and hyperbranched polycarbosilanes with Si-CH 2 -Si bridging groups: A synthetic platform for the construction of novel functional polymeric materials
(John Wiley & Sons, Ltd., 1998-10)
Work carried in the authors laboratory on Si–CH 2 –Si bridged polycarbosilanes is reviewed. In pursuit of high-yield polymeric precursors to silicon carbide, convenient synthetic routes to both linear and hyperbranched ...
A new and novel approach towards the synthesis of 3'-deoxy-3'-hydroxymethyl ribofuosides
(Elsevier, 1990)
The synthesis of 1,2,5 tri--benzoyl-3-deoxy-3-[(benzyloxy)methyl]-[alpha],gb-D-ribofuranose () from 1,2 --isopropylidene-[alpha]-D-xylofuranose () has been achieved in an overall yield of 37%. Compound is a properly ...
Thermodynamics of the thallium alkanoates VIII. Heat capacity and derived thermophysical properties of thallium(I) propanoate and pentanoate at temperatures from 6 K to 490 K
(Elsevier, 1994-09)
Heat-capacity measurements by adiabatic calorimetry at temperature T = 5 K to 350 K were supplemented by differential-scanning calorimetry (d.s.c.) into the liquid region on thallium(I) propanoate and pentanoate. Apparent ...
Heat capacity and thermodynamic properties of synthetic heazlewoodite, Ni3S2, and of the high-temperature phase Ni3±xS2
(Elsevier, 1991-01)
The heat capacity of synthetic heazlewoodite (Ni3S2) was measured over the temperature range 5 K to 350 K by equilibrium adiabatic calorimetry and compared with earlier results. High-temperature results on this phase and ...
1,2-Addition of dimethyl(phenyl)silyllithium to cyclic [alpha],[beta]-unsaturated ketones and regiospecific generation of cyclic silyl enol ethers through brook rearrangement of the 1,2-addition products
(Elsevier, 1990)
A highly convenient two-step sequence for the regiospecific synthesis of cyclic silyl enol ethers has been developed involving the 1,2-addition of dimethyl(phenyl)silyllithium to cyclic [alpha],[beta]-unsaturated ketones ...
Preparation and properties of silicon-containing polymer hybrids from 3-methacryloxypropyltrimethoxysilane
(John Wiley & Sons, Ltd., 1998-10)
The preparation of organic–inorganic polymer hybrids consisting of carbon–carbon and siloxane chains was investigated by radical polymerization of 3-methacryloxypropyltrimethoxysilane (MAS) followed by acid-catalyzed ...
Incorporation of alkylthiol chains at C-5 of deoxyuridine
(Elsevier, 1993-08-27)
A series of alkylthiol-tether homologs at C-5 of 2'-deoxyuridine have been synthesized and incorporated into DNA oligomers through solid-phase DNA phosphoramidite synthesis. DNA-ligand disulfide crosslinks have been initially ...
Heat capacity and thermodynamic properties of deuterated ammonium hexafluorophosphate ND4PF6 from 5.8 K to 347 K
(Elsevier, 1990-10)
The heat capacity of deuterated ammonium hexafluorophosphate ND4PF6 was measured from 5.8 K to 347 K by adiabatic calorimetry. Two [lambda]-shaped anomalies were found in the curve for heat capacity against temperature. ...
Thermodynamics of copper sulfides IV. Heat capacity and thermodynamic properties of Cu1.90S from 5 K to 750 K, Cu1.95S from 5 K to 1000 K, Cu1.98S from 300 K to 1000 K, and Cu1.995S from 300 K to 750 K
(Elsevier, 1990-11)
The heat capacities of Cu1.90S, Cu1.95S, Cu1.98S, and Cu1.995S have been measured by adiabatic-shield calorimetry. All samples have been characterized by powder X-ray diffraction in the temperature interval studied. A ...