Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Rhodocene> ?p ?o }
- Rhodocene abstract "Rhodocene, formally known as bis(η5-cyclopentadienyl)rhodium(II), is a chemical compound with the formula [Rh(C5H5)2]. Each molecule contains an atom of rhodium bound between two planar systems of five carbon atoms known as cyclopentadienyl rings in a sandwich arrangement. It is an organometallic compound as it has (haptic) covalent rhodium–carbon bonds. The [Rh(C5H5)2] radical is found above 150 °C or when trapped by cooling to liquid nitrogen temperatures (−196 °C). At room temperature, pairs of these radicals combine to form a dimer, a yellow solid in which two of these cyclopentadienyl rings are joined.The history of organometallic chemistry includes the 19th century discoveries of Zeise's salt and Ludwig Mond's discovery of nickel tetracarbonyl. These compounds posed a challenge to chemists as the compounds did not fit with chemical bonding models as they were then understood. A further challenge arose with the discovery of ferrocene, the iron analogue of rhodocene and the first of the class of compounds now known as metallocenes. Ferrocene was found to be unusually chemically stable, as were analogous chemical structures including rhodocenium, the unipositive cation of rhodocene and its cobalt and iridium counterparts. The study of organometallic species including these ultimately led to the development of new bonding models that explained both their formation and their stability. Work on sandwich compounds, including the rhodocenium / rhodocene system, earned Geoffrey Wilkinson and Ernst Otto Fischer the 1973 Nobel Prize for Chemistry.Owing to their stability and relative ease of preparation, rhodocenium salts are the usual starting material for preparing rhodocene and substituted rhodocenes, all of which are unstable. The original synthesis used a cyclopentadienyl anion and tris(acetylacetonato)rhodium(III); numerous other approaches have since been reported, including gas-phase redox transmetalation and using half-sandwich precursors. Octaphenylrhodocene (a derivative with eight phenyl groups attached) was the first substituted rhodocene to be isolated at room temperature, though even it decomposes rapidly in air. X-ray crystallography confirmed that octaphenylrhodocene has a sandwich structure with a staggered conformation. Unlike cobaltocene, which has become a useful one-electron reducing agent in the research laboratory setting, no rhodocene derivative yet discovered has sufficient stability for such applications.Biomedical researchers have examined the applications of rhodium compounds and their derivatives in medicine and reported one potential application for a rhodocene derivative as a radiopharmaceutical to treat small cancers. Rhodocene derivatives are also used to synthesise linked metallocenes so that metal–metal interactions can be studied; potential applications of these derivatives include molecular electronics and research into the mechanisms of catalysis. The value of rhodocenes tends to be in the insights they provide into the bonding and dynamics of novel chemical systems, rather than their direct use in applications.".
- Rhodocene iupacName "bis(η5-cyclopentadienyl)rhodium(II)".
- Rhodocene thumbnail Rhodocene-2D-skeletal.png?width=300.
- Rhodocene wikiPageID "28223827".
- Rhodocene wikiPageLength "74165".
- Rhodocene wikiPageOutDegree "239".
- Rhodocene wikiPageRevisionID "705867269".
- Rhodocene wikiPageWikiLink 18-Electron_rule.
- Rhodocene wikiPageWikiLink Acetonitrile.
- Rhodocene wikiPageWikiLink Acetylacetone.
- Rhodocene wikiPageWikiLink Ammonium_hexafluorophosphate.
- Rhodocene wikiPageWikiLink Aromaticity.
- Rhodocene wikiPageWikiLink Benzene.
- Rhodocene wikiPageWikiLink Beta_decay.
- Rhodocene wikiPageWikiLink Bicyclic_molecule.
- Rhodocene wikiPageWikiLink Bis(benzene)chromium.
- Rhodocene wikiPageWikiLink Brain.
- Rhodocene wikiPageWikiLink Bromide.
- Rhodocene wikiPageWikiLink Butyl.
- Rhodocene wikiPageWikiLink Cancer.
- Rhodocene wikiPageWikiLink Carbanion.
- Rhodocene wikiPageWikiLink Carbon.
- Rhodocene wikiPageWikiLink Carbon_monoxide.
- Rhodocene wikiPageWikiLink Carbon–carbon_bond.
- Rhodocene wikiPageWikiLink Catalysis.
- Rhodocene wikiPageWikiLink Category:Metallocenes.
- Rhodocene wikiPageWikiLink Category:Organorhodium_compounds.
- Rhodocene wikiPageWikiLink Centroid.
- Rhodocene wikiPageWikiLink Centrosymmetry.
- Rhodocene wikiPageWikiLink Chemical_bond.
- Rhodocene wikiPageWikiLink Chemical_compound.
- Rhodocene wikiPageWikiLink Chemical_equilibrium.
- Rhodocene wikiPageWikiLink Chemical_formula.
- Rhodocene wikiPageWikiLink Chemical_polarity.
- Rhodocene wikiPageWikiLink Chemical_stability.
- Rhodocene wikiPageWikiLink Cobalt.
- Rhodocene wikiPageWikiLink Cobaltocene.
- Rhodocene wikiPageWikiLink Coordination_complex.
- Rhodocene wikiPageWikiLink Coplanarity.
- Rhodocene wikiPageWikiLink Covalent_bond.
- Rhodocene wikiPageWikiLink Crankshaft.
- Rhodocene wikiPageWikiLink Cyclic_voltammetry.
- Rhodocene wikiPageWikiLink Cyclopentadiene.
- Rhodocene wikiPageWikiLink Cyclopentadienyl.
- Rhodocene wikiPageWikiLink Cyclopentadienylthallium.
- Rhodocene wikiPageWikiLink Density.
- Rhodocene wikiPageWikiLink Dewar–Chatt–Duncanson_model.
- Rhodocene wikiPageWikiLink Diamagnetism.
- Rhodocene wikiPageWikiLink Dichloromethane.
- Rhodocene wikiPageWikiLink Diglyme.
- Rhodocene wikiPageWikiLink Dimer_(chemistry).
- Rhodocene wikiPageWikiLink Dimethoxyethane.
- Rhodocene wikiPageWikiLink Dimethylformamide.
- Rhodocene wikiPageWikiLink Dropping_mercury_electrode.
- Rhodocene wikiPageWikiLink Eclipsed_conformation.
- Rhodocene wikiPageWikiLink Electron_counting.
- Rhodocene wikiPageWikiLink Electron_density.
- Rhodocene wikiPageWikiLink Electron_paramagnetic_resonance.
- Rhodocene wikiPageWikiLink Electronvolt.
- Rhodocene wikiPageWikiLink Endo-exo_isomerism.
- Rhodocene wikiPageWikiLink Ernst_Otto_Fischer.
- Rhodocene wikiPageWikiLink Ethanol.
- Rhodocene wikiPageWikiLink Ethylene.
- Rhodocene wikiPageWikiLink F._Albert_Cotton.
- Rhodocene wikiPageWikiLink Ferrocene.
- Rhodocene wikiPageWikiLink Ferromagnetism.
- Rhodocene wikiPageWikiLink Fulvalene.
- Rhodocene wikiPageWikiLink Gamma_ray.
- Rhodocene wikiPageWikiLink Geoffrey_Wilkinson.
- Rhodocene wikiPageWikiLink Grignard_reaction.
- Rhodocene wikiPageWikiLink Half-life.
- Rhodocene wikiPageWikiLink Half-reaction.
- Rhodocene wikiPageWikiLink Haloperidol.
- Rhodocene wikiPageWikiLink Hapticity.
- Rhodocene wikiPageWikiLink Heterogeneous_catalysis.
- Rhodocene wikiPageWikiLink Hexafluorophosphate.
- Rhodocene wikiPageWikiLink Hexafluorophosphoric_acid.
- Rhodocene wikiPageWikiLink Homogeneous_catalysis.
- Rhodocene wikiPageWikiLink Hxc3xbcckels_rule.
- Rhodocene wikiPageWikiLink Infrared_spectroscopy.
- Rhodocene wikiPageWikiLink Internal_standard.
- Rhodocene wikiPageWikiLink Iodine-131.
- Rhodocene wikiPageWikiLink Ion.
- Rhodocene wikiPageWikiLink Iridium.
- Rhodocene wikiPageWikiLink Iridocene.
- Rhodocene wikiPageWikiLink Isoelectronicity.
- Rhodocene wikiPageWikiLink Isopropyl.
- Rhodocene wikiPageWikiLink Isotope.
- Rhodocene wikiPageWikiLink Isotopes_of_rhodium.
- Rhodocene wikiPageWikiLink Isotopes_of_ruthenium.
- Rhodocene wikiPageWikiLink Ligand.
- Rhodocene wikiPageWikiLink Liquid_nitrogen.
- Rhodocene wikiPageWikiLink Ludwig_Mond.
- Rhodocene wikiPageWikiLink Lung.
- Rhodocene wikiPageWikiLink Main-group_element.
- Rhodocene wikiPageWikiLink Mass_spectrometry.
- Rhodocene wikiPageWikiLink Medical_research.
- Rhodocene wikiPageWikiLink Medicinal_radiocompounds.
- Rhodocene wikiPageWikiLink Metal_acetylacetonates.
- Rhodocene wikiPageWikiLink Metal_carbonyl.