Preparation and structures of the nickel(II) and silver(I) complexes of a 17-membered dibenzo macrocycle with an n2s3 donor set

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1992 English Publisher:Elsevier BVJournal:Polyhedron, volume 11, pages 617-621 (issn: 0277-5387,

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Authors: Uwe Kallert; Rainer Mattes;

doi: 10.1016/s0277-5387(00)83317-3

Preparation and structures of the nickel(II) and silver(I) complexes of a 17-membered dibenzo macrocycle with an n2s3 donor set

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Abstract

Abstract The nickel(II) and silver(I) complexes [Ni(L1)ClO4]ClO4 and [Ag(L1)]ClO4 of the 17-membered dibenzo macrocyclic ligand L1 with an N2S3 donor atom set have been prepared and characterized by X-ray crystal structure determinations. Nickel(II) is octahedrally coordinated by the five donor atoms of L1 and a perchlorate oxygen atom. The overall symmetry of the [Ni(L1)]2+ moiety is close to m symmetry. In [Ag(L1)]+, all five donor atoms of the ligand are bound to the metal ion. The coordination polyhedron is best described as a distorted pentagonal bipyramid. The conformation of this and of related ligands within their HN(CH2)2X(CH2)2NH fragments (X = O, N or S) will be discussed.

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University of Münster
Germany

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