Now showing items 81-90 of 426
Comparison of SnBr 4 and di-n-butyl tin diacetate as laser-assisted chemical vapor deposition precursors for SnO 2 -based gas sensors
(John Wiley & Sons, Ltd., 1998-03)
Laser-assisted chemical vapor deposition (LCVD) was utilized to produce SnO 2 films from SnBr 4 plus air, O 2 or N 2 O. SnO 2 films were successfully generated using either 222 or 308 14nm laser pulses but there was ...
Conformation dependence of the SH and CS stretch frequencies of the cysteine residue
(Wiley Subscription Services, Inc., A Wiley Company, 1992-11)
In order to relate the observed SH and CS stretch frequencies of the cysteine residue in proteins more closely to its conformation, we have done normal mode calculations on a model for this structure, viz., (CCONH)(CNHCO)CHCH ...
Complementarity of Δ opioid ligand pharmacophore and receptor models
(John Wiley & Sons, Inc., 1999)
The elaboration of a pharmacophore model for the Δ opioid receptor selective ligand JOM-13 (Tyr–c[ D -Cys–Phe– D -Pen]OH) and the parallel, independent development of a structural model of the Δ receptor are summarized. ...
Initiation of poly-N-acetyllactosamine chain biosynthesis occurs preferentially on complex multiantennary asparagine-linked oligosaccharides
(Elsevier, 1990-08-01)
An N-acetyl-[beta]--glucosaminyltransferase activity involved in the initiation of poly-N-acetyllactosamine chain biosynthesis can be solubilized from Ehrlich ascites tumor cell microsomal membranes. The ability of this ...
The selectivity of hydrazine oxidation on a polycrystalline rhodium surface
(Elsevier, 1991-11-02)
The surface reactions of coadsorbed hydrazine and atomic oxygen have been examined by means of temperature-programmed reaction spectroscopy (TPRS) on a clean polycrystalline rhodium surface over the 90 to 1450 K temperature ...
Conformers of cis-N-methylacetamide : Ab initio study of geometries and vibrational spectra
(Elsevier, 1991-11-01)
Energies and geometries have been obtained, at the Hartree-Fock 4-31G* level, for the four stable conformers of cis-N-methylacetamide that result from conformational isomerism of the CH3 groups. Ab initio force fields were ...
Molybdenum/cobalt/sulfur clusters: Models and precursors for hydrodesulfurization (HDS) catalysts
(John Wiley & Sons Ltd., 1992-09)
Sulfido clusters which incorporate molybdenum and a late transition metal, e.g. iron, cobalt or nickel, are readily prepared by the reactions of Cp 2 Mo 2 S 4 , Cp 2 Mo 2 S 2 (SR) 2 or Cp 2 Mo 2 (CO) 2 (SR) 2 with Fe 2 ...
Magnetic resonance studies of intercalated, two-dimensional transition metal chalcogenophosphate lattices
(Elsevier, 1994-02-25)
Transition metal chalcogenophosphates with the formula M2P2X6 (where M is a divalent transition metal and X = S, Se) form a family of compounds with layered structures that offer chemically accessible interlamellar spaces ...
The effect of spacer length on the polymerization of diacetylenes in sams on gold surfaces
(WILEY‐VCH Verlag GmbH & Co. KGaA, 1999-08)
The influence of the molecular architecture of diacetylene disulfides on the structure and polymerizability of self assembled monolayers on gold was investigated. The position of the diacetylene group was varied systematically ...
Advantages to Conversion of Lattice Heat Capacity to C v in the Resolution of Excess Properties The Ln 2 S 3 's as an example
(Kluwer Academic Publishers; Springer Science+Business Media, 1998-01)
This paper represents a fitting (modeling) of the temperature dependence of the Komada-Westrum characteristic temperature for those γ-, δ- and ε-phase lanthanide sesquisulfides for which the total heat capacities, including ...