Dichlorobis(ethylenediamine)nickel(II) is the inorganic compound with the formula NiCl2(en)2, where en = ethylenediamine. The formula is deceptive: the compound is the chloride salt of the coordination complex [Ni2Cl2(en)4]2+. This blue solid is soluble in water and some polar organic solvents. It is prepared by ligand redistribution from [Ni(en)3]Cl2 and hydrated nickel chloride: 2 [Ni(en)3]Cl2 + NiCl2 → 3 NiCl2(en)2
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Dichlorobis(ethylenediamine)nickel(II) is the inorganic compound with the formula NiCl2(en)2, where en = ethylenediamine. The formula is deceptive: the compound is the chloride salt of the coordination complex [Ni2Cl2(en)4]2+. This blue solid is soluble in water and some polar organic solvents. It is prepared by ligand redistribution from [Ni(en)3]Cl2 and hydrated nickel chloride: 2 [Ni(en)3]Cl2 + NiCl2 → 3 NiCl2(en)2
The rapid ligand redistribution is characteristic of the kinetic lability of octahedral nickel(II) complexes. In contrast with the lability of [Ni(en)3]Cl2+ is the inertness of the isostructural tris(ethylenediamine)cobalt(III) cation. [[File:ENCNIC01.png|thumb|left|Structure of the dication [Ni2Cl2(en)4]2+ that comprises the salt "NiCl2(en)2".]]
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).