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Synthesis and crystal structure of a new chiral α-aminooxime nickel(II) complex

ABSTRACT: The reaction of a nickel precursor with an enantiomerically pure amino-oxime issued from (R)-limonene led to the formation of bis[κ3N,N,N-(aminooxime)-μ-chlorido]dichlorodinickel as a new dinuclear nickel complex. A dinuclear nickel complex with (S)-limonene based aminooxime ligand has been isolated and its crystal structure determined. The resolved structure of dichloridobis{(2S,5R)-2-methyl-5-(prop-1-en-2-yl)-2-[(pyridin-2-yl)methylamino]cyclohexan-1-one oxime}dinickel(II), [Ni2Cl2(C16H23ClN3O)2], at 100 K has monoclinic (P21) symmetry. The two NiII ions in the dinuclear complex are each coordinated in a distorted octahedral environment by three nitrogen atoms, a terminal chloride and two μ bridging chlorides. Each oxime ligand is coordinated to nickel(II) by the three nitrogen atoms, leading to two five-membered chelate rings, each displaying an envelope conformation. In the crystal, numerous intermolecular and intramolecular hydrogen bonds lead to the formation of a three-dimensional network structure.

SUBMITTER: Homrani Y

PROVIDER: S-EPMC8587986 | biostudies-literature |

REPOSITORIES: biostudies-literature

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