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Rhenium containing hyperbranched polymers for photonic applicationsTse, Chui-wan. January 2007 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2007. / Title proper from title frame. Also available in printed format.
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Designing chiral rhenium (VII) trioxo complexesJuniku, Rajan B. 10 December 2004 (has links)
The epoxide deoxygenation reaction is formally the reverse of the
epoxidation reaction. Compared to epoxidation, which has reached its full
maturity, epoxide deoxygenation has not been as intensively developed.
Among the few deoxygenation reagents, a handful are catalytic in a metal
complex, show high stereospecificity and operate under mild conditions. A
common feature of all present deoxygenation reagents is that they do not
perform asymmetric deoxygenation of racemic epoxides.
Rhenium (VII) trioxo complexes are emerging as pliable catalysts for
epoxide deoxygenation. Designing a chiral rhenium (VII) trioxo complex
was our goal. Guided by the mechanism of rhenium (VII) trioxo catalyzed
epoxide deoxygenation and the mechanism of the stereogenic information
transfer, we have designed and prepared a chiral rhenium(VII) trioxo
complex. This complex is void of stereogenic centers and the source of
asymmetry is the restricted rotation around a carbon-carbon bond.
Detailed conformational analysis of the new chiral complex was done by
extensive NMR measurements and molecular modeling. The rotation
barrier for the diolate was experimentally and computationally estimated to
be 9.72 kcal/mol and 8.06 kcal/mol, respectively.
Unsuccessful attempts were made to prepare a camphor based
scorpionate because of the extreme steric congestion. A menthone based
scorpionate was successfully prepared. The related rhenium (TII) trioxo
complex with this scorpionate revealed contradicting chemical and
spectroscopic features. / Graduation date: 2005
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Mechanistic studies on Re(V) mediated C-O bond transformationsZhuravlev, Fedor 02 November 2001 (has links)
Graduation date: 2002
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The chemistry of nitroxyl (HN=0) complexes of rhenium /Southern, Joel Stephen January 1999 (has links)
Thesis (Ph. D.)--University of Chicago, Dept. of Chemistry, June 1999. / Includes bibliographical references. Also available on the Internet.
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Technetium(VII) and rhenium(VII) oxofluorides and the role of noble-gas fluorides in their syntheses /Leblond, Nicolas. January 1998 (has links)
Thesis (Ph.D.) -- McMaster University, 1998. / Includes bibliographical references (leaves 325-336). Also available via World Wide Web.
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Synthetic, structural and spatial studies of rhenium compounds.Wei, Yi. Lock, C.J.L. Unknown Date (has links)
Thesis (Ph.D.)--McMaster University (Canada), 1995. / Source: Dissertation Abstracts International, Volume: 56-12, Section: B, page: 6741. Adviser: C. J. L. Lock.
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Design and syntheses of luminescent rhenium(I) diimine alkynyl complexes with hole-transporting and/or electron-transporting moieties and their use as potential triplet emittersChung, Wai-kin. January 2009 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2009. / Includes bibliographical references (leaves 304-323). Also available in print.
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Syntheses, characterization, electrochemistry and photochemical properties of some high-valent Oxo and Imido complexes of osmium and rhenium /Cheng, Yuk-ki. January 1997 (has links)
Thesis (Ph. D.)--University of Hong Kong, 1997. / Includes bibliographical references (leaves 216-222).
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Mechanistic study of rhenium (I)carbonyl complexes as model radiopharmaceuticals.Kemp, Gerdus 14 May 2008 (has links)
In 1896, Becquerel discovered the natural radioactivity in potassium uranyl sulphate. Since then, Pierre and Marie Curie, E. Rutherford and F. Soddy all made tremendous contributions to the discovery of many other radioactive elements. The work of all these scientists has shown that all elements found in nature with an atomic number greater than 83 (bismuth) are radioactive. Artificial radioactivity was first reported by I. Curie and F. Joliot in 1934. These scientists irradiated boron and aluminium targets with a particles from polonium and observed positrons emitted from the target even after removal of the a particle source. This discovery of induced or artificial radioactivity opened up a brand new field of tremendous importance. Around the same time, the discovery of the cyclotron, deuteron and neutron by various scientists facilitated the discovery of many more artificial radioactivities. At present time more than 2700 radionuclides have been produced artificially in the cyclotron, the nuclear reactor, the neutron generator and linear accelerator. Radiopharmaceuticals are drugs that contain a radionuclide and are used for imaging if the radionuclide is a photon emitter (gamma-g or positron-b+) or for therapy if the radionuclide is a particle emitter (alpha-a or beta-b- or Auger/conversion e-). / Prof. A. Roodt
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Activation of small molecules by cationic rhenium complexes /Radzewich, Catherine Ellen, January 1997 (has links)
Thesis (Ph. D.)--University of Washington, 1997. / Vita. Includes bibliographical references (leaves [158]-172).
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