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  2. Nickel (II) chloride - Wikipedia

    en.wikipedia.org/wiki/Nickel(II)_chloride

    The dihydrate NiCl 2 ·2H 2 O adopts a structure intermediate between the hexahydrate and the anhydrous forms. It consists of infinite chains of NiCl 2, wherein both chloride centers are bridging ligands. The trans sites on the octahedral centers occupied by aquo ligands. [10] A tetrahydrate NiCl 2 ·4H 2 O is also known.

  3. Nickel compounds - Wikipedia

    en.wikipedia.org/wiki/Nickel_compounds

    Nickel(II) fluoride NiF 2 is yellow, crystallising in the rutile structure and can form a trihydrate, NiF 2 ·3H 2 O. [3] A tetrahydrate also exists. [4] Nickel chloride NiCl 2 is yellow, crystallising in the cadmium chloride structure. It can form a hexahydrate, NiCl 2 ·6H 2 O, a tetrahydrate NiCl 2 ·4H 2 O over 29 °C and a dihydrate, NiCl ...

  4. Dichloro(1,2-bis(diphenylphosphino)ethane)nickel - Wikipedia

    en.wikipedia.org/wiki/Dichloro(1,2-bis(diphenylp...

    Dichloro[1,2-bis(diphenylphosphino)ethane]nickel is a coordination complex with the formula NiCl 2 (dppe); where dppe is the diphosphine 1,2-bis(diphenylphosphino)ethane. It is used as a reagent and as a catalyst. [1] The compound is a bright orange-red diamagnetic solid. The complex adopts a square planar geometry. [2] [3]

  5. Dichlorobis(triphenylphosphine)nickel(II) - Wikipedia

    en.wikipedia.org/wiki/Dichlorobis(triphenylphosp...

    NiCl 2 •6H 2 O + 2 PPh 3 → NiCl 2 (PPh 3) 2 + 6 H 2 O. When allowed to crystallise from chlorinated solvents, the tetrahedral isomer converts to the square planar isomer. The square planar form is red and diamagnetic. The phosphine ligands are trans with respective Ni-P and Ni-Cl distances of 2.24 and 2.17 Å.

  6. Nickelocene - Wikipedia

    en.wikipedia.org/wiki/Nickelocene

    2 Ni(C 5 H 5) 2 + 2 PPh 2 H → [Ni 2 (PPh 2) 2 (C 5 H 5) 2] + 2 C 5 H 6. Nickelocene can be oxidized to the corresponding cation, which contains Ni(III). Gaseous Ni(C 5 H 5) 2 decomposes to a nickel mirror upon contact with a hot surface, releasing the hydrocarbon ligands as gaseous coproducts. This process has been considered as a means of ...

  7. Trehalose - Wikipedia

    en.wikipedia.org/wiki/Trehalose

    Trehalose has about 45% the sweetness of sucrose at concentrations above 22%, but when the concentration is reduced, its sweetness decreases more quickly than that of sucrose, so that a 2.3% solution tastes 6.5 times less sweet as the equivalent sugar solution.

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