Structure of a nickel(II) complex of the deprotonated anion of 3,6,6,9-tetramethyl-4,8-diaza-3,8-undecadiene-2,10-dione dioxime

Abstract

Abstract.[3,Y-(2,2-Dimethyl-1,3-propanediyldi-

Synthesis and characterization of a tetramethyl furanone functionalized diiminedioxime, a potential ligand for 64Cu radiopharmaceuticals, and its copper(II) and nickel(II) complexes

“…The Ni-N bond lengths range from 1.884(4) to 1.921(4) Å, slightly longer than those observed for [Ni(PreH)]ClO 4 , which range from 1.869(5) to 1.892(5) Å [27] and Ni-Me 2 PreH, which range from 1.866(5) to 1.887(3) Å [28]. The lengthening of the Ni-N bonds is presumably due to the greater displacement of the Ni atom from the plane in this complex than in the two previous examples (0.018 Å for Ni-PreH [27] and 0.056 Å for Ni-Me 2 PreH [28]) and shorter Ni-O(perchlorate) distance (2.504(5) Å and 2.512(4) Å) in this complex compared to the two Ni-PreH complexes (2.84 Å and 2.902(5) Å). The structure of the ligand itself is similar to that seen in 1 and 2 except that in this case the central carbon atom of the trimethylene bridge is disordered in molecule A.…”

catena-Poly[[[hemiaquacopper(II)]-μ-(3,9-dimethyl-4,8-diazaundeca-3,8-diene-2,10-dione dioximato)-κ4N,N′,N′′,N′′:κO] perchlorate]

“…For related literature, see: Bertrand et al (1977); Wang et al (1991); ; ; Tahirov et al (1995); Lu et al (1993); Asadi et al (2005); Movahedi & Golchoubian (2006); Wisemann & Krebs (2000).…”

“…The structure appears to be the same as ours except for the full occupancy modeling of the water molecule and the lower precision. Other complexes of this tetradentate ligand with different transition metals and their derivatives have been synthesized Wang et al, 1991) and their structures have been examined (Tahirov et al, 1995;Lu et al, 1993). The structure of the title compound contains infinite-chain cations.…”