engleski

Bis[N-(beta-naphthyl)-2-oxy-1-naphthaldiminato]nickel(II)

There is a remarkable sterochemical difference between the free ligand and that coordinated to the Ni atom in the title compound (systematic name: bis[1-(2-naphthyliminomethyl)-2-naphtholato-N, O]nickel(II), [Ni(C21H14NO)2]). Upon coordination, the orientation of the N-(beta-naphthyl)-2-oxy-1-naphthaldimine ligand (which is almost planar in the solid state when uncomplexed) is changed so that the plane of the N-beta-naphthyl substituent is almost normal to the plane of the naphthaldiminato moiety. Two bidentate ligands coordinate to the Ni atom (which lies on an inversion centre) with their O and N atoms in a (necessarily) trans arrangement and forming a stepped conformation with a mean chelate-plane vertical separation of 63.9(2) pm. Main dimensions are Ni-O 182.0(2), Ni-N 190.1(2) pm and O-Ni-N 91.75(7) degrees.

Conformational change; bis-bidentate nickel(II) complex; N-substituted naphthaldimine

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