Slater screening constants in atomic and molecular orbitals
Slater screening constants in atomic and molecular orbitals
PERTURBATION THEORY↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Report on Travel Grants Activity of U. S. National Committee for Pure and Applied Biophysics, NAS-NRC, Naples, Italy, September 8-11, 1965
Symposium brief - topics included proteins, antibodies, enzymes, and differentiation
BIOPHYSICS↗
Theory of time dependent mechanical breakdown of oriented media Technical report no. 104
Time dependent nature of mechanical breakdown of oriented and stressed solids
TENSILE STRESS↗
A forecast for theoretical chemistry
Application of quantum mechanics in theoretical chemistry
MOLECULAR STRUCTURE↗
Substituent effects in unimolecular ion decompositions. II - A linear free energy relationship between acyl ion intensities in the mass spectra of substituted acylbenzenes.
Linear free energy relationship between benzoyl and acetyl ion intensities in mass spectra of benzo- and acetophenones explained by kinetic argument
FREE ENERGY↗
Central potentials for nonpolar polyatomic molecules.
Molecular acentricity effect on intermolecular pair potential of n-alkane homologs and benzene
POLYATOMIC MOLECULE↗
Some recent work on prebiological synthesis of organic compounds.
Origin of constituents of nucleic acid and protein molecules, noting biological molecules synthesis under conditions similar to those prevailing in prebiotic Earth, following Oparin-Haldane hypothesis
ABIOGENESIS↗
The transfer of energy within cells
Cell structure, and molecular energy transfer mechanism in biological cells
ENERGY TRANSFER↗
On the formation of graphite grains in cool stars
Graphite grain formation in cool stars examined on basis of molecular equilibrium data for stellar atmospheres
CRYSTAL GROWTH↗
Cell-cluster development for the pair distribution function - Application to rigid disks at hight density.
Molecular pair distribution function in perfect crystalline solids, using method based on cell cluster theory
MOLECULAR STRUCTURE↗
Observation of the reactive asymmetry of methyl iodide - Crossed beam study of the reaction of rubidium with oriented methyl iodide molecules.
Crossed molecular beam kinetics of reactive asymmetry of oriented methyl iodide polar molecules reacting with rubidium
METHYL HALIDE↗
Experimental and theoretical study of molecular, continuum, and line radiation from planetary atmospheres.
Molecular, continuum and line radiation of planetary atmospheres, comparing molecular band structure models with spectral measurements of CN VIOLET band
ATMOSPHERIC RADIATION↗
Experimental and theoretical study of molecular, continuum, and line radiation from planetary atmospheres.
Molecular, continuum and line radiation of planetary atmospheres, comparing molecular band structure models with spectral measurements of CN violet band
Helliwell, T. M.↗
Polymer containing functional end groups is base for new polymers
Butadiene is polymerized with lithium-p-lithiophenoxide to produce linear polymer containing oxy-lithium group at one end and active carbon-lithium group at other end. Living polymers represent new approach to preparation of difunctional polymers in which structural features, molecular weight, type and number of end groups are controlled.
Hirshfield, S. M.↗
Highlights of 10th plasma chemistry meeting
The chemical structure is given of a film formed by plasma polymerization from pyridine monomers. The film has a hydrophilic chemical structure, its molecular weight is 900, and the molecular system is C55H50N10O3. The electrical characteristics of a plasma polymerized film are described. The film has good insulating properties and was successfully applied as video disc coating. Etching resistance properties make it possible to use the film as a resist in etching. The characteristics of plasma polymer formed from monomers containing tetramethyltin are discussed. The polymer is in film form, displays good adhesiveness, is similar to UV film UV 35 in light absorption and is highly insulating.
Kitamura, K.↗
CO observations of several galactic H II regions
Maps of the CO emission at a resolution of 8 arcmin are presented for seven H II regions or H II region groups; the results of a search for CO emission near seven more are also given. CO was detected near all but two of the observed objects. The distribution of (C-12)O and (C-13)O near S142, S157, and S159 was mapped at a resolution of 2.3 arcmin. The S147/S153 group of H II regions is shown to consist of physically related objects; it is a region of active star formation. The results show a complicated molecular cloud structure near most observed H II regions. There is a tendency for decreasing CO cloud mass when H II regions in more evolved stages are observed. The relevance of these results for the understanding of individual H II region/molecular cloud complexes, and for general aspects of the star-formation process, is briefly discussed.
Israel, F. P.↗
Quantum chemical calculations for polymers and organic compounds
The relativistic effects of the orbiting electrons on a model compound were calculated. The computational method used was based on 'Modified Neglect of Differential Overlap' (MNDO). The compound tetracyanoplatinate was used since empirical measurement and calculations along "classical" lines had yielded many known properties. The purpose was to show that for large molecules relativity effects could not be ignored and that these effects could be calculated and yield data in closer agreement to empirical measurements. Both the energy band structure and molecular orbitals are depicted.
Lopez, J.↗
Effects of high energy radiation on the mechanical properties of epoxy graphite fiber reinforced composites
The effects of high energy radiation on mechanical properties and on the molecular and structural properties of graphite fiber reinforced composites are assessed so that durability in space applications can be predicted. A listing of composite systems irradiated along with the maximum radiation dose applied and type of mechanical tests performed is shown. These samples were exposed to 1/2 MeV electrons.
Gilbert, R. D.↗