Browsing by Subject "Organometallic compounds"
Now showing items 1-19 of 19
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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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(Texas A&M University. Libraries, 1986)The anionic transition metal hydride, HM(CO)₄L⁻ (M = Cr, W; L = CO, P(OMe)₃, P(C₆H₅)₃, P(Me)₃) reacts with transition metal carbonyl dimers (Cp₂W₂(CO)₆, Cp₂Mo₂(CO)₆, Mn₂(CO)₈{P(C₆H₅)₃}₂, Mn₂(CO)₁₀, Co₂⁻ (CO)₈) to give ...
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(Texas A&M University. Libraries, 1987)A new entry into the area of low valent niobium and tantalum complexes containing metal-metal bonds is described. M₂X₆(μ-THT)(THF)₂ complexes, where M = Nb or Ta, X = Cl or Br and THT = tetrahydrothiophene, are conveniently ...
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(Texas A&M University. Libraries, 1981)Lithium di-n-butyl(tri-n-butylphosphine)argentate(I) (2) and other organoargentate(I) complexes have been prepared and their mechanism of thermal decomposition studied. Chemical characterization of 2 by reaction first with ...
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(Texas A&M University. Libraries, 1980)The research described in this dissertation concerns the investigation of selected 6-mercaptopurine metallo complexes. Syntheses are developed, the compounds are screened for anti-carcinogenic activity in two in vivo ...
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(Texas A&M University. Libraries, 1980)
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(Texas A&M University. Libraries, 1989)Total geometry optimizations are reported for Cr(CO)₆ , HMn(CO)₅ , Fe(CO)₅ , Ni(CO)₄ , Cr(C₆H₆)₂, Fe(C₅H₅)₂ , Ni(C₄H₄)₂, Cr(NO)₄, (C₅H₅)Mn(CO )₃, and (C₆H₆)Cr(CO)₃ . A variety of basis sets were examined, and, based on the ...
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(Texas A&M University. Libraries, 1983)Characterization of methyl(tri-n-butylphosphine)silver{I} (1), lithium{dimethyl(tri-n-butylphosphine)silver{I}} (2), and dilithium{trimethyl(tri-n-butylphosphine)silver{I}} (3) by ('1)H, ('7)Li, ('13)C, and ('31)P NMR ...
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(Texas A&M University. Libraries, 1981)The interaction coordinates of chromium hexacarbonyl were quantitatively predicted by the overlap populations from Fenske-Hall molecular orbital (FHMO) calculations. The trans effect, in the interaction coordinates, was ...
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(Texas A&M University. Libraries, 1979)Potassium-graphite, a typical alkali metal-graphite intercalation compound, has been found to undergo reactions with organic substrates y both one-and two-electron processes. The reaction of weak protic acids like water ...
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(Texas A&M University. Libraries, 1986)The cis-M(CO)4 (13CO)PR3 [double harpoon] trans-M(CO)4(13CO)PR3 CM = Cr, R = Et; M = W, R = OMe, Me, Et, i-Pr) isomerization reactions have been studied kinetically in cyclohexane-d12 by 13C NMR spectroscopy. These ...
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(Texas A&M University. Libraries, 1986)
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(Texas A&M University. Libraries, 1978)A new class of organolanthanides containing both pi and metal-carbon sigma bonds have been synthesized and characterized. These are ring-bridged biscyclopentadienyl lanthanides of the type [Cp(CH2)xCp]LnCl and [Cp(CH2)3Cp]LnR ...
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(Texas A&M University. Libraries, 1978)Several new metallodibenzotetraaza[14]annulenes have been prepared that exhibit unique coordination chemistry. The ligands utilized in these new complexes are 1,8-dihydrodibenzo(b,i)(1,4,8,11)tetraaza[14]-annulene (C₁₈H₁₆N₄ ...
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(Texas A&M University. Libraries, 1980)The purpose of this study was to synthesize a macrocyclic polystannane, 8, which would potentially use the Lewis acid character of several tin atoms to create an acidic solvation ring similar to the basic ring of the crown ...
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(Texas A&M University. Libraries, 1983)The oxidative cyclization of diester dienolates was investigated as a new synthetic method for cyclizing diesters. The proposed cyclization would use a transition metal salt to first complex with the terminal enolates to ...
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(Texas A&M University. Libraries, 1986)A series of six heterobimetallic carbonyl anions containing Fe and group 6 metals have been synthesized and characterized by spectroscopic techniques, chemical reactivity, and X-ray crystallography. The structural features ...
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(Texas A&M University. Libraries, 1987)The group 6 anionic transition metal hydrides, HM(CO)4L- (M = Cr, W; L = CO, P(OMe)3 were found to be convenient reagents in organic and organometallic synthesis. These reagents offer the advantages of high selectivity, ...
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(Texas A&M University. Libraries, 1992)In this work, well-defined bimetallic surfaces have been studied using carbon monoxide adsorption in conjunction with infrared reflection absorption spectroscopy (IRAS). These studies have indicated that for CO adsorbed ...