• Thumbnail for Sandwich compound
    In organometallic chemistry, a sandwich compound is a chemical compound featuring a metal bound by haptic, covalent bonds to two arene (ring) ligands....
    17 KB (1,698 words) - 02:40, 14 March 2023
  • Thumbnail for Half sandwich compound
    Half sandwich compounds, also known as piano stool complexes, are organometallic complexes that feature a cyclic polyhapto ligand bound to an MLn center...
    17 KB (1,606 words) - 18:01, 19 July 2024
  • Thumbnail for Metallocene
    others). Metallocenes are a subset of a broader class of compounds called sandwich compounds. In the structure shown at right, the two pentagons are the...
    22 KB (2,174 words) - 18:01, 25 June 2024
  • also called the "sandwich standard error" Sandwich theorem Sandwich assay, a type of immunoassay Sandwich compounds in chemistry Sandwich (horse) (born 1928)...
    3 KB (332 words) - 06:18, 4 June 2024
  • Thumbnail for Iron
    Iron (redirect from Ferrous compounds)
    varied, including cyanide complexes, carbonyl complexes, sandwich and half-sandwich compounds. Prussian blue or "ferric ferrocyanide", Fe4[Fe(CN)6]3, is...
    150 KB (17,056 words) - 12:22, 24 August 2024
  • Thumbnail for Organouranium chemistry
    compound. In it, the U-Cl bond is an ionic bond, while the bonds with the three cyclopentadienyl ligands are covalent of the type found in sandwich compounds...
    5 KB (612 words) - 04:30, 10 May 2024
  • varied, including cyanide complexes, carbonyl complexes, sandwich and half-sandwich compounds. Prussian blue or "ferric ferrocyanide", Fe4[Fe(CN)6]3, is...
    27 KB (2,957 words) - 03:23, 7 August 2024
  • Thumbnail for Cyclooctatetraene
    Cyclooctatetraene (category Antiaromatic compounds)
    with some metals, including yttrium, lanthanides, and actinides. The sandwich compound uranocene (U(COT)2) features two η8-COT ligands. In bis(cyclooctatetraene)iron...
    17 KB (1,519 words) - 05:39, 13 August 2024
  • Thumbnail for Organocobalt chemistry
    nucleophilic substitution. Organocobalt compounds are known with alkene, allyl, diene, and Cp ligands. A famous sandwich compound is cobaltocene, a rare example...
    11 KB (1,095 words) - 22:02, 27 March 2024
  • P-Cymene (category Isopropyl compounds)
    is a common ligand for ruthenium. The parent compound is [(η6-cymene)RuCl2]2. This half-sandwich compound is prepared by the reaction of ruthenium trichloride...
    5 KB (369 words) - 17:11, 28 October 2023
  • Ferrocene (category Sandwich compounds)
    an organometallic compound with the formula Fe(C5H5)2. The molecule is a complex consisting of two cyclopentadienyl rings sandwiching a central iron atom...
    53 KB (5,136 words) - 16:12, 20 August 2024
  • Thumbnail for Cyclopentadienyl complex
    (Cp2Fe2(CO)4). Monometallic compounds featuring only one Cp ring are often known as half sandwich compounds or as piano stool compounds, one example being...
    8 KB (881 words) - 20:56, 19 February 2024
  • Thumbnail for Organorhodium chemistry
    Unlike the prevalence of cobalt(II) complexes, compounds of rhodium(II) are rare. The sandwich compound rhodocene is one example, even it exists in equilibrium...
    10 KB (1,125 words) - 13:44, 11 October 2023
  • Thumbnail for Ernst Otto Fischer
    Organouranium chemistry Chromocene Metallocene Osmocene Rhodocene Sandwich compound Hieber, W.; Fischer, E. O. (1952). "Ũber den Mechanismus der Kohlenoxydreaktion...
    8 KB (857 words) - 13:57, 20 August 2024
  • Thumbnail for Knölker complex
    Knölker complex (category Half sandwich compounds)
    The Knölker complex is an organoiron compound, which is a catalyst for transfer hydrogenation. The complex features an hydroxycyclopentadienyl ligand bound...
    2 KB (190 words) - 16:22, 3 December 2023
  • Thumbnail for John Montagu, 4th Earl of Sandwich
    of Sandwich, PC, FRS (13 November 1718 – 30 April 1792) was a British statesman who succeeded his grandfather Edward Montagu, 3rd Earl of Sandwich as...
    37 KB (4,061 words) - 03:11, 10 August 2024
  • Thumbnail for Group 2 organometallic chemistry
    [(thf)3Ca{μ-C6H3-1,3,5-Ph3}Ca(thf)3] also described in 2009 is an inverse sandwich compound with two calcium atoms at either side of an arene. Olefins tethered...
    17 KB (2,002 words) - 19:38, 11 August 2024
  • experiments and correctly arrived at a cationic bisarene chromium sandwich compound (ArH2Cr+). Bis(benzene)chromium itself was discovered around the same...
    11 KB (1,312 words) - 23:18, 12 May 2024
  • Magnesocene (category Magnesium compounds)
    MgCp2, is an organometallic compound with the formula Mg(η5-C5H5)2. It is an example of an s-block main group sandwich compound, structurally related to...
    14 KB (1,600 words) - 20:49, 14 November 2023
  • sides of a central metal atom. Such organometallic compounds are also known as sandwich compounds. The rapid growth of organometallic chemistry is often...
    24 KB (3,204 words) - 12:16, 26 May 2024
  • Ruthenocene (category Organoruthenium compounds)
    is an organoruthenium compound with the formula (C5H5)2Ru. This pale yellow, volatile solid is classified as a sandwich compound and more specifically...
    5 KB (421 words) - 09:35, 7 December 2023
  • Thumbnail for Organoactinide chemistry
    Plutonium also forms a sandwich complex with 1,4-bis(trimethylsilyl)cyclooctatetraenyl (1,4-COT’’) and its 1,3 isomer. This compound is prepared by the oxidation...
    14 KB (1,501 words) - 14:49, 22 July 2024
  • Thumbnail for (Benzene)ruthenium dichloride dimer
    (Benzene)ruthenium dichloride dimer (category Half sandwich compounds)
    (Benzene)ruthenium dichloride dimer is the organoruthenium compound with the formula [(C6H6)RuCl2]2. This red-coloured, diamagnetic solid is a reagent...
    3 KB (205 words) - 17:17, 18 June 2024
  • Thumbnail for Bis(benzene)chromium
    Bis(benzene)chromium (category Sandwich compounds)
    dibenzenechromium. The compound played an important role in the development of sandwich compounds in organometallic chemistry and is the prototypical complex containing...
    17 KB (1,555 words) - 13:31, 21 October 2023
  • Thumbnail for Organometallic chemistry
    catalyst 1973 Nobel prize Geoffrey Wilkinson and Ernst Otto Fischer on sandwich compounds 1981 Nobel prize Roald Hoffmann and Kenichi Fukui for creation of...
    31 KB (3,140 words) - 14:35, 7 August 2024
  • Decomplexation (category Half sandwich compounds)
    In chemistry, decomplexation refers to the removal of a ligand from a coordination complex. Decomplexation is of particular interest when the ligand has...
    4 KB (443 words) - 22:52, 31 August 2023
  • Thumbnail for Bis(cyclooctatetraene)iron
    Bis(cyclooctatetraene)iron (category Sandwich compounds)
    Bis(cyclooctatetraene)iron is an organoiron compound with the formula Fe(C8H8)2, abbreviated Fe(COT)2. It is an air-sensitive black solid that is soluble...
    3 KB (296 words) - 22:32, 12 May 2024
  • Thumbnail for Hexaphosphabenzene
    Hexaphosphabenzene (category Sandwich compounds)
    Chandrasekhar. (1988-07-01). "Electronic structure of triple-decker sandwich compounds with P5, P6, As5, and CnHn as middle rings". Organometallics. 7 (7):...
    34 KB (3,519 words) - 18:24, 21 March 2024
  • Thumbnail for Kläui ligand
    Kläui ligand (category Half sandwich compounds)
    v t e Cobalt compounds Cobalt(I) HCo(CO)4 Cobalt(II) CoBr2 Co(CN)2 CoCO3 CoC2O4 CoCl2 Co(ClO3)2 Co(ClO4)2 CoF2 Co(HCO2)2 CoI2 Co(NO3)2 Co3(PO4)2 Co(OAc)2...
    3 KB (266 words) - 19:38, 27 October 2022
  • Thumbnail for Methylcyclopentadienyl manganese tricarbonyl
    Methylcyclopentadienyl manganese tricarbonyl (category Half sandwich compounds)
    Methylcyclopentadienyl manganese tricarbonyl (MMT or MCMT) is an organomanganese compound with the formula (C5H4CH3)Mn(CO)3. Initially marketed as a supplement for...
    20 KB (2,232 words) - 20:40, 7 June 2024