Bis(cyclooctadiene)nickel(0) is the organonickel compound with the formula Ni(C8H12)2. This highly air-sensitive yellow solid is a common source of Ni(0) in chemical synthesis. If exposed to air at room temperature, decomposition to nickel(II) oxide is rapid, occurring in minutes. As a result, this compound is generally handled in a glovebox. 1/3 [Ni3(acac)6] + 2 cod + 2 AlEt3 → Ni(cod)2 + 2 acacAlEt2 + C2H6 + C2H4 Ni(cod)2 is moderately soluble in several organic solvents. One or both 1,5-cyclooctadiene ligands are readily displaced by phosphines, phosphites, bipyridine, and isocyanides.

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dbo:abstract
  • Bis(cycloocta-1,5-dien)nickel ist eine metallorganische Verbindung mit der Konstitutionsformel [(C8H12)2Ni]. Der lichtempfindliche, gelbe Nickel(0)-Komplex wurde zuerst von Günther Wilke synthetisiert. Der Komplex findet eine weite Anwendung in der organischen Synthese und als Katalysator für organische Reaktionen. Die Cycloolefinliganden können leicht durch andere Liganden wie Phosphine, Isonitrile oder andere Olefine ersetzt werden. (de)
  • Le bis(cyclooctadiène) nickel(0), souvent abrégé Ni(COD)2, est un composé organométallique de formule Ni(C8H12)2. Il se présente sous la forme d'un solide jaune, sensible à l'air, et constitue une source courante de Ni(0) en synthèse chimique. Le Ni(COD)2, est un complexe diamagnétique composé d'un atome de nickel(0) tétraédrique, liés aux doubles liaisons de deux ligands cycloocta-1,5-diène (COD). Ce complexe peut être préparé par réduction d'acétylacétonate de nickel anhydre, en présence de COD : 1/3 [Ni3(acac)6] + 2 COD + 2 AlEt3 → Ni(cod)2 + 2 acacAlEt2 + C2H6 + C2H4 Le Ni(COD)2 n'est que modérément soluble dans le benzène et dans le THF. Les ligands COD peuvent être facilement remplacés par des phosphines, des phosphites ou des isocyanures. (fr)
  • Il bis(1,5-cicloottadiene)nichel(0) è il composto metallorganico del nichel con formula Ni(C8H12)2. La formula è in genere abbreviata come Ni(cod)2 o Ni(COD)2. In condizioni normali è un solido giallo sensibile all'ossigeno atmosferico. Viene comunemente usato nelle sintesi chimiche come fonte di Ni(0), cioè per ottenere atomi di nichel nello stato di ossidazione zero. Il Ni(cod)2 è un complesso diamagnetico; il nichel è coordinato in modo tetraedrico ai gruppi alchene presenti nei due leganti 1,5-cicloottadiene. Si prepara per riduzione di anidro in presenza della diolefina: 1/3[Ni3(acac)6] + 2cod + 2AlEt3 → Ni(cod)2 + 2acacAlEt2 + C2H6 + C2H4 Ni(cod)2 è moderatamente solubile in benzene e THF. I leganti cod possono essere facilmente sostituiti da fosfine, e isocianuri. (it)
  • Bis(cyclooctadiene)nickel(0) is the organonickel compound with the formula Ni(C8H12)2. This highly air-sensitive yellow solid is a common source of Ni(0) in chemical synthesis. If exposed to air at room temperature, decomposition to nickel(II) oxide is rapid, occurring in minutes. As a result, this compound is generally handled in a glovebox. Bis(cyclooctadiene)nickel(0), or Ni(cod)2, is a diamagnetic coordination complex featuring tetrahedral nickel(0) bound to the alkene groups in two 1,5-cyclooctadiene ligands. The complex is prepared by reduction of anhydrous nickel(II) acetylacetonate in the presence of the diolefin: 1/3 [Ni3(acac)6] + 2 cod + 2 AlEt3 → Ni(cod)2 + 2 acacAlEt2 + C2H6 + C2H4 Ni(cod)2 is moderately soluble in several organic solvents. One or both 1,5-cyclooctadiene ligands are readily displaced by phosphines, phosphites, bipyridine, and isocyanides. (en)
dbo:alternativeName
  • nickel biscod, Ni(COD)2 (en)
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  • Ni2.png (en)
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  • Bisnickel (en)
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  • nickel biscod, Ni2 (en)
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rdfs:comment
  • Bis(cycloocta-1,5-dien)nickel ist eine metallorganische Verbindung mit der Konstitutionsformel [(C8H12)2Ni]. Der lichtempfindliche, gelbe Nickel(0)-Komplex wurde zuerst von Günther Wilke synthetisiert. Der Komplex findet eine weite Anwendung in der organischen Synthese und als Katalysator für organische Reaktionen. Die Cycloolefinliganden können leicht durch andere Liganden wie Phosphine, Isonitrile oder andere Olefine ersetzt werden. (de)
  • Bis(cyclooctadiene)nickel(0) is the organonickel compound with the formula Ni(C8H12)2. This highly air-sensitive yellow solid is a common source of Ni(0) in chemical synthesis. If exposed to air at room temperature, decomposition to nickel(II) oxide is rapid, occurring in minutes. As a result, this compound is generally handled in a glovebox. 1/3 [Ni3(acac)6] + 2 cod + 2 AlEt3 → Ni(cod)2 + 2 acacAlEt2 + C2H6 + C2H4 Ni(cod)2 is moderately soluble in several organic solvents. One or both 1,5-cyclooctadiene ligands are readily displaced by phosphines, phosphites, bipyridine, and isocyanides. (en)
  • Le bis(cyclooctadiène) nickel(0), souvent abrégé Ni(COD)2, est un composé organométallique de formule Ni(C8H12)2. Il se présente sous la forme d'un solide jaune, sensible à l'air, et constitue une source courante de Ni(0) en synthèse chimique. Le Ni(COD)2, est un complexe diamagnétique composé d'un atome de nickel(0) tétraédrique, liés aux doubles liaisons de deux ligands cycloocta-1,5-diène (COD). Ce complexe peut être préparé par réduction d'acétylacétonate de nickel anhydre, en présence de COD : 1/3 [Ni3(acac)6] + 2 COD + 2 AlEt3 → Ni(cod)2 + 2 acacAlEt2 + C2H6 + C2H4 (fr)
  • Il bis(1,5-cicloottadiene)nichel(0) è il composto metallorganico del nichel con formula Ni(C8H12)2. La formula è in genere abbreviata come Ni(cod)2 o Ni(COD)2. In condizioni normali è un solido giallo sensibile all'ossigeno atmosferico. Viene comunemente usato nelle sintesi chimiche come fonte di Ni(0), cioè per ottenere atomi di nichel nello stato di ossidazione zero. Il Ni(cod)2 è un complesso diamagnetico; il nichel è coordinato in modo tetraedrico ai gruppi alchene presenti nei due leganti 1,5-cicloottadiene. Si prepara per riduzione di anidro in presenza della diolefina: (it)
rdfs:label
  • Bis(cycloocta-1,5-dien)nickel (de)
  • Bis(cyclooctadiene)nickel(0) (en)
  • Bis(1,5-cyclooctadiène)nickel (fr)
  • Bis(1,5-cicloottadiene)nichel(0) (it)
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  • Bis(cyclooctadiene)nickel(0) (en)
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