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Nickel(II) chloride (or just nickel chloride) is the chemical compound NiCl 2. The anhydrous salt is yellow, but the more familiar hydrate NiCl 2 ·6H 2 O is green. Nickel(II) chloride, in various forms, is the most important source of nickel for chemical synthesis. The nickel chlorides are deliquescent, absorbing moisture from the air to form ...
There are also nickel chloride methoxides with formulae: NiClOMe, Ni 3 Cl 2 (OMe) 4 and Ni 3 Cl(OMe) 5 in which Nickel and oxygen appear to form a cubane-type cluster. [ 68 ] Other alkoxy compounds known for nickel include nickel dipropoxide, nickel di-isopropoxide, nickel tert -amyloxide, and nickel di- tert -hexanoxide. [ 69 ]
Hexaamminenickel chloride is the chemical compound with the formula [Ni(NH 3) 6]Cl 2. It is the chloride salt of the metal ammine complex [Ni(NH 3 ) 6 ] 2+ . The cation features six ammonia (called ammines in coordination chemistry) ligands attached to the nickel (II) ion.
Nickel(II) chloride is made by dissolving nickel or its oxide in hydrochloric acid. It is usually found as the green hexahydrate, whose formula is usually written NiCl 2 ·6H 2 O. When dissolved in water, this salt forms the metal aquo complex [Ni(H 2 O) 6] 2+. Dehydration of NiCl 2 ·6H 2 O gives yellow anhydrous NiCl 2. [48] Some ...
Nickel(II) perchlorate is a collection of inorganic compounds with the chemical formula of Ni(ClO 4) 2 (H 2 O) x.Its colors of these solids vary with the degree of hydration. For example, the hydrate forms cyan crystals, the pentahydrate forms green crystals, but the hexahydrate (Ni(ClO 4) 2 ·6H 2 O) forms blue crystals.
For example, the complex dichloro(1,3-bis(diphenylphosphino)propane)nickel is prepared by combining equimolar portions of the ligand and nickel(II) chloride hexahydrate. This nickel complex serves as a catalyst for the Kumada coupling reaction. [2] Dppp is also used as a ligand for palladium(II) catalysts to co-polymerize carbon monoxide and ...
When a nickel (U.S. coin) is dissolved in hydrochloric acid, it forms a yellow solution similar to a iron III chloride solution. At first I thought that it was a iron III chloride impurity in the nickel, but nickels don't contain iron. After reading this page, I found out that the color was the result of the NiCl4 (2-) ion.
The geometry of the nickel(II) ion is square planar. [2] It is surrounded by two equivalents of the conjugate base (dmgH −) of dimethylglyoxime (dmgH 2).The pair of organic ligands are joined through hydrogen bonds to give a macrocyclic ligand.