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Physical chemical characterization of amphiphilic vesicles and drug entrapment therein
(1978)
Liposomes and surfactant vesicles were characterized as potential drug carriers in this work. Iodide ion permeabilities, extent of drug entrapment and leakage were determined for liposomes. The chemically simpler, although ...
Fluorescence of coronene
(1978)
A search was made for dual fluorescence in deoxygenated solutions of 1,2,3,4-dibenzanthracene and 1,2,5,6-dibenzanthracene in EPA and n-heptane at 77°K. A nitrogen laser was utilized for excitation and a boxcar average ...
The synthesis and characterization of thio sugar esters of diorganylarsinous acids
(1978)
The synthesis of thiosugars containing several diorganylarsino groups is described. The compounds prepared are: dihexadecyl-, di-n-octyl-, dicyclohexyl-, dibutyl-, dipropyl-, diethyl-, methyl-npropyl- and 2-hydroxyethylm ...
The synthesis and characterization of some dimethylarsinous acid esters of thio- and selenogalactose
(1977)
A series of galactose derivatives containing the -XAs(CH₃)₂ moiety u (X = S, Se) has been prepared. These are 2 ,3 ,4 ,6-tetra -0 -acetyl-1 -Sdimethylarsino-l-thio- β-D-galactopyranose, 2 ,3 ,4 ,6-tetra-O-acetyl-1 ...
The ion pair structures of arylmethyl carbanions
(1976)
The ion pair structures of various arylmethyl carbanions have been investigated with carbon-13 nuclear magnetic resonance spectroscopy. Arylmethyl carbanions exist as an equilibrium between contact and solvent separated ...
The electrochemical oxidation of alcohols
(1975)
The electrochemical oxidation of aliphatic and tert-benzylic alcohols has been studied. Voltammetry was used to demonstrate that the alcohols are oxidized directly at the anode surface. It was found that acetonitrile and ...
A study of the donor properties of phenoxatellurine and related phenoxachalcogenines
(1972)
The phenoxachalcogeninens were studied as donors toward tetracyanoethylene as the acceptor. It was found that values of K, ε[subscript C], ΔH, ΔG, and ΔS for the series show no significant change when the chalcogenine ...
A redetermination of the structures of diiron nonacarbonyl and triiron dodecacarbonyl and a structural investigation of the reaction products of diiron nonacarbonyl with nitrogen and phosphorus donor ligands in tetrahydrofuran
(1974)
The structures of diiron nonacarbonyl and triiron dodecacarbonyl have been redetermined by single crystal three-dimensional X-ray crystallographic techniques. The structure of diiron nonacarbonyl previously determined by ...
Calculations of the electronic structure and spin-orbit coupling in nitrogen-containing heterocyclic compounds by the modified INDO and limited CI method
(1972)
The semi-empirical SCF method for all-valence-electron in the INDO approximation has been modified by reparameterization for calculation of the electronic structure of nitrogen-containing heterocyclic compounds. In the ...