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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

Chalcocarbonyl chemistry : application in hormonal receptor determination, metalloporphyrins and metal-arene bond activation

Ismail, Ashraf A. January 1985 (has links)
The reaction of ((eta)-Arene)Cr(CO)(,2)(CX) (X = S, Se) complexes with excess (RO)(,3)P (R = Me, Et, n-Bu, Ph) yields Cr(CO)(,2)(CX) (RO)(,3)P (,3), predominantly as the mer I isomer, in which a phosphite ligand is trans to CX. Arene displacement from ((eta)-C(,6)H(,6))Cr(CO)(,2)(CX) by tridentate phosphine ligands L-L-L L-L-L = (Me)C(CH(,2)P(Ph)(,2))(,3), (Ph(,2)PCH(,2)CH(,2))(,2)PhP gives fac-(L-L-L)Cr(CO)(,2)(CX) products. The molecular structures of Cr(CO)(,2)(CX) (MeO)(,3)P (,3) have been determined by single crystal X-ray diffraction. Intramolecular isomerization of these complexes as well as their tricarbonyl analogue has been demonstrated and activation parameters have been calculated for the rearrangement processes. Two-dimensional ('31)P NMR spectroscopy has provided evidence that isomerization occurs via trigonal prismatic intermediates. Kinetic investigations of the reaction of ((eta)-C(,6)H(,6))Cr(CO)(,2)(CX) with (MeO)(,3)P have established a first-order rate dependence on both the complex and the entering ligand. The faster reaction rate of the selenocarbonyl derivative relative to its thiocarbonyl analogue originates in a lower entropy of activation in the former case. The effect on the reaction rate of variation in the nature of the arene and of the entering ligand has been investigated. / An approach to hormonal receptor assay involving the detection by FT-IR spectroscopy of Cr(CO)(,3)-labelled modified estradiol bound to estrogen receptors in target tissue is reported. / The FT-IR spectra of FeTPP(CX) FeTPP = (5,10,15,20-tetraphenyl-porphinato)Fe(II); X = S, Se and FeTPP(CX)L (X = S, Se; L = pyridine, ethanol) have been obtained. Some changes in the porphyrin spectrum were observed with variation or removal of L, but not with variation of X.
92

Synthesis of iron carbonyl derivatives of some organic disulfides

Lopez, Orosman, 1945- January 1981 (has links)
No description available.
93

[¹¹C] carbon monoxide in rhodium-/palladium-mediated carbonylation reactions /

Barletta, Julien, January 2006 (has links)
Diss. (sammanfattning) Uppsala : Uppsala universitet, 2006. / Härtill 5 uppsatser.
94

The chemistry of polynuclear ruthenium carbonyl clusters containing functionalised alkyne ligands /

Lau, Sze-wai, Cindy. January 1999 (has links)
Thesis (Ph. D.)--University of Hong Kong, 1999. / Includes bibliographical references (leaves 230-243).
95

The chemistry of triosmium alkylidyne carbonyl clusters /

Wong, Wai-yeung. January 1995 (has links)
Thesis (Ph. D.)--University of Hong Kong, 1995. / Includes bibliographical references (leaf 320-343).
96

Chemistry of transition metal carbonyls and their derivatives

Douglas, Walter Mark, January 1970 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1970. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliography.
97

Reactions of sulfur atoms produced by the ³⁵Cl(n, p)³⁵ S process in potassium chloride and by photolysis of carbonyl sulfide

Giulianelli, James. January 1969 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1969. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
98

Structural studies by x-ray diffraction and NMR of phosphido-bridged metal carbonyl dimers and trimers containing metal-metal interactions

Huntsman, James Richard, January 1973 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1973. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographies.
99

Tin(IV) hydride-mediated intramolecular reductive head-to-tail Michael reaction of enones with activated alkene tethers

Seok, Moonki. Krafft, Marie E. January 2006 (has links)
Thesis (M.S.)--Florida State University, 2006. / Advisor: Marie E. Krafft, Florida State University, College of Arts and Sciences, Dept. of Chemistry and Biochemistry. Title and description from dissertation home page (viewed June 13, 2006). Document formatted into pages; contains xix, 119 pages. Includes bibliographical references.
100

Intramolecular epoxidation using oxone

Clarke, Paul Andrew January 1996 (has links)
No description available.

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