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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 670 for “"carbonyl"”.
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Carbonyl ylide cycloadditions of dicobalt carbonyl complexes of propargylic aldehydes
The intermolecular, three-component carbonyl ylide cycloaddition of a diazo compound, aldehyde, and carbon-carbon multiple bond is a powerful method to construct five-membered oxygen heterocycles. An adjacent dicobalt hexacarbonyl cluster permits the expansion of the scope of this process to …
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A structural study of rhodium carbonyl chloride and rhodium carbonyl bromide
Thesis: B.S., Massachusetts Institute of Technology, Department of Chemistry, 1960
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Germanium derivatives of cobalt carbonyl
… already-established germanium – bridged dicobalt carbonyl derivatives. The relationships between and interconversions of three tetracobalt derivatives of Germanium are discussed. A review of Group IVB - Cobalt carbonyl derivatives is presented along with a discussion of the mass and infrared …
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New high nuclearity carbonyl clusters
… of a series of new Rhodium and Au-Fe carbonyl clusters. Most new high-nuclearity rhodium carbonyl clusters have been obtained by redox condensation of preformed rhodium clusters reacting with a species in a different oxidation state generated in situ by mild oxidation. In particular …
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Studies of Iridium Carbonyl Cluster Complexes
… (1) was decarbonylated and transformed into five polynuclear iridium compounds, Ir<sub>2</sub>(CO)<sub>6</sub>(μ-GePh<sub>2</sub>)(GePh<sub>3</sub>)<sub>2</sub> (2), …
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Reactions of Unsaturated Triosmium Carbonyl Clusters
Made available in DSpace on 2014-12-13T20:10:20Z (GMT). No. of bitstreams: 1 7804169.pdf: 5703829 bytes, checksum: 4fcc7af3f0e1329dc9c5b37ef0a89975 (MD5) Previous issue date: 1977
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Oxyligands in triosmium carbonyl cluster compounds
Tridentate triply bridging phosphonate and arsonate clusters of the general formula ($\mu$-H)$\sb2$Os$\sb3$(CO)$\sb9$($\mu\sb3$, $\eta\sp3$-O$\sb3$ER) (E = P, R = Ph (1), Me; E = As, R = Ph) were prepared. The reaction scheme involved (1) generation of a solution containing a labile cluster species …
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Studies on polygermanyl-transition metal (carbonyl) derivatives
… the appropriate polygermanyl halides and metal carbonyl anions. The characterisation by infrared, Raman, n.m.r. and mass spectrometry of these compounds is discussed in detail. The physical properties and reactions have also been investigated and compared, in parallel with the parent …
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Structural studies of polynuclear metal carbonyl derivatives
X-Ray structure analysis of fifteen metal carbonyl cluster compounds of nuclearity three to seven have been carried out to investigate the effect organo-fragments have on metal core geometry.
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Metal carbonyl fluoride complexes / by Ernst Horn
Typescript (photocopy)
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Grignard Reagents Containing an Hindered Carbonyl Function
Made available in DSpace on 2014-12-05T19:36:40Z (GMT). No. of bitstreams: 1 0023386.pdf: 4757460 bytes, checksum: 5fa2962fb7105f038a90b17098b600a3 (MD5) Previous issue date: 1957
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Synthesis and chemistry of thione-iron carbonyl complexes
… and a thiobenzoate with diiron enneacarbonyl in benzene at room temperature. The known trinuclear complex S<sub>2</sub>Fe<sub>3</sub>(CO)<sub>9</sub> was a by-product of these reactions, and complexes of the type (Ar<sub>2</sub>C)S<sub>2</sub>Fe<sub>2</sub>(CO)<sub>6</sub> were formed …
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Highly Active Iron-NHC Complexes for Carbonyl Hydrosilylation
The catalytic hydrosilylation of carbonyl groups into alcohols is a powerful transformation in the laboratory and industry. Despite the recent advances in this field, the development of catalytic systems that can activate inexpensive silanes like polymethylhydrosiloxane (PMHS) under mild conditions …
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Regulation of Human Carbonyl Reductase 3 (CBR3) Expression
Univerzita Karlova v Praze, Farmaceutická fakulta v Hradci Králové Katedra biochemických věd Kandidát Mgr. Petra Malátková Školitel Prof. Ing. Vladimír Wsól, Ph.D. Název disertační práce Regulace exprese lidské karbonylreduktasy 3 (CBR3) Regulace exprese lidské karbonylreduktasy 3 (CBR3) byla až …
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Novel Thienyl Dyes and related Metal Carbonyl Complexes
… for the novel thienyl dyes and related metal carbonyl complexes synthesised are then presented. This is followed by an outline of the techniques of laser flash photolysis, time-resolved infrared (TRIR) spectroscopy and time correlated single photon counting. Chapter two involves the study of …
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The Reduction of Carbonyl Compounds by Sodium Naphthalenide
… of sodium naphthaienide with various aromatic carbonyl compounds, particularly aromatic aldehydes and ketones. Although sodium naphthalenide was first investigated in 1936 by Scott et al, the synthetic utility of this alkali metal adduct in organic chemistry has only recently been explored. It …
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Further studies of group 14- cobalt carbonyl chemistry
… into several areas of group 14-cobalt carbonyl chemistry including substitution of a bridging carbonyl ligand by an R₂GeH₂ species to form a GeCo₂ triangle, reactions of germanium-cobalt carbonyl clusters with transition metal carbonyl anions and the reactions of Et₄NSnCl₃ with group …
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