Browsing by Subject "Major chemistry"
Now showing items 1-20 of 320
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(Texas A&M University. Libraries, 1995)Previous interpretation of the EPR spectra of the dl pseudo- D4h NbCI4(PR3)2 complexes assumed that the unpaired electron resides in the b2g(dxy) orbital. In contrast, simple molecular orbital considerations suggest that ...
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(Texas A&M University. Libraries, 1993)The adsorption and oxidation of carbon monoxide were studied on model mono- and bimetallic catalysts of Pd(111), Pd(100), Cu(100), Rh(100) and Cu/Rh(100), using combined elevated pressure reactor/IR cell-UHV surface analysis ...
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(Texas A&M University. Libraries, 1986)An investigation of the relation of surface H to that adsorbed in the metal was carried out. During the course of this investigation a number of subsidiary investigations were made. These include an investigation of the ...
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(Texas A&M University. Libraries, 1995)Our laboratory has developed a technique that uses a pneumatically generated aerosol to combine liquid introduction with matrix-assisted laser desorption ionization (MALDI) mass spectrometry. The work described here ...
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(Texas A&M University. Libraries, 1970)
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(Texas A&M University. Libraries, 1985)Two similar chemical interactions were studied: (1) that between two naturally occurring nucleosides found in deoxyribonucleic acids, 2'-deoxyadenosine and thymidine; and (2) between the nucleoside 2'-deoxyadenosine and ...
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(Texas A&M University. Libraries, 1979)Potentiometric titrimetry using calcium and chloride selective electrodes is investigated and a new conductimetric gas sensor is developed as an alternative to conventional potentiometric gas sensing electrodes. Complexometric ...
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(Texas A&M University. Libraries, 1989)A family of synthetic host molecules have been prepared, ranging in structural complexity from spiro-annelated monocycles 16 to symmetric bicycles 12 and ditopic tricycles 14. The neutral host molecules contain either two ...
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(Texas A&M University. Libraries, 1978)The basic goal of this study was the development of an efficient approach to the total synthesis of vernolepin. Special attention was paid to the development of an efficient synthesis of bicycle[4.3.1]-dec-3-en-9,10-diones ...
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(Texas A&M University. Libraries, 1970)The development of a pseudo atom model self-consistent field complete neglect of differential overlap (CNDO) molecular orbital theory and localized population analysis methods are described and applied to the iron enneacarbonyl ...
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(Texas A&M University. Libraries, 1995)The dibenzofuran-based amino acid residue, 4-(2-arninoethyl)-6-dibenzofuranpropanoic acid (1), was studied to evaluate its efficacy in nucleating antiparallel,8-sheet structure in a series of thirteen residue peptides ...
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(Texas A&M University. Libraries, 1971)The methyl iso-butyl ketone / water / 8-hydroxyquinoline solvent extraction system coupled with atomic absorption spectroscopy was studied with regard to its applicability to the determination of some thirteen metals. The ...
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(Texas A&M University. Libraries, 1967)The preparations of tetraphosphorus triselenide, P₄Se₃, and phosphorus pentaselenide, P₂Se₅ were investigated. A simple method was developed for the synthesis of P₄Se₃ in a very pure state. An optimum set of conditions was ...
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(Texas A&M University. Libraries, 1982)
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(Texas A&M University. Libraries, 1980)Thio sugar and thio steroid esters of several dialkylarsinous acids have been prepared and characterized. Specifically, the syntheses of the following compounds have been investigated: 1-thio-2,3:5,6-di-O-isopropylidene ...
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(Texas A&M University. Libraries, 1987)The role of folates in the enzymatic formation of the porphyrin macrocycles was investigated. Uroporphyrinogen III cosynthetase-free hydroxymethylbilane synthase from Rhodopseudomonas spheroides was incubated with the ...
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(Texas A&M University. Libraries, 1987)A new Cf-252 plasma desorption mass spectrometer has been built specifically for the analysis of large biomolecules. This mass spectrometer was used to investigate the interactions between proteins adsorbed onto polymer ...
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(Texas A&M University. Libraries, 1980)[^252]Cf-plasma desorption mass spectrometry is shown to be an excellent method for the analysis of chlorophylls in aggregated states. Investigation provide experimental evidence for the view that chlorophylls can be ...
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(Texas A&M University. Libraries, 1986)As PPN⁺ (bistriphenylphosphineimminium) salts the anionic metal hydrides HFeM(CO)₉⁻ (M = Cr, Mo, W) were shown to be olefin isomerization catalysts under mild conditions (25°C, fluorescent lighting) toward the conversion ...
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The catalytic behaviors of lanthanum and neodymium oxides for dehydrogenation/dehydration of ethanol (Texas A&M University. Libraries, 1985)The ethanol dehydrogenation and dehydration reactions have been employed to investigate the nature and behavior of catalytically active sites on lanthanum and neodymium sesquioxides. In support of this objective, x-ray ...