The nickel, copper and zinc complexes of potentially heptadentate nitrogen–sulfur donor ligands

Steel, Graham; Mustapha, Adamu; Reglinski, John; Kennedy, Alan R.

doi:10.1016/j.poly.2013.09.018

Cited by 3 publications

(2 citation statements)

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“…Sulfur containing tren ligands are not unknown, with a few N 4 S 3 ligands reported in the literature; these systems have shown modest success in the binding of ions, and as neutral amine donors for late transition metals [13][14][15][16]. In contrast to the work previously performed, we sought to deprotonate our ligand and use it as a tris(amido)amine, stabilizing higher oxidation state transition metals.…”

Section: Introductionmentioning

confidence: 99%

A tripodal aminothioether ligand scaffold: Synthesis and coordination to zirconium and hafnium

et al. 2017

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The heptadentate ligand, tris-(2-(2-(methylthio)phenylamino)ethyl)amine (2), has been synthesized from the condensation of nitrilotriacetyl chloride with 2-(methylthio)aniline, to generate 2,2',2"-nitrilotris(N-(2-(methylthio)phenyl)acetamide) (1), followed by a lithium aluminum hydride reduction. The zirconium (3) and hafnium (4) complexes of this ligand were generated via transamination reactions. Both complexes are isostructural, exhibiting a hexadentate N 4 S 2 coordination from the ligand, with one diethylamido ligand also bound. The solid state structures of all compounds are reported.

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Section: Introductionmentioning

confidence: 99%

A tripodal aminothioether ligand scaffold: Synthesis and coordination to zirconium and hafnium

et al. 2017

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“…ligand system based on tren and 2-(tert-butylthio)benzaldehyde where curtailed due to the limited stability of the imine group within the metal complexes studied [24]. The salicylidene-tren systems are more robust but even these, when metallated (e.g.…”

Section: Methodsmentioning

confidence: 99%

The nickel, copper and zinc complexes of a potentially heptadentate nitrogen donor ligands

Mustapha¹,

Steel

Reglinski

et al. 2017

Polyhedron

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The synthesis of the potentially heptadentate ligands, tris-(2-aminobenzylidene)amino-ethylamine (L3) and tris-(o-aminobenzyl)aminoethylamine (L4) are reported. Complexes of L3 with nickel copper and zinc have been synthesised and characterised. However, the nickel and zinc compounds are observed to re-arrange during the procedures used to produce samples for X-ray diffraction analysis. In both cases aniline groups are found to migrate to give rise to unique but related coordinated polyamine species. A rational route which allows for the reduction of the imine function in L3 is presented giving rise to a heptadetate ligand (L4) which contains primary, secondary and tertiary amines. Having removed the reactive imine function, the synthesized nickel and copper complexes follow the expected synthetic and structural pattern with the nickel complex being observed to be octahedral and the copper(II) complex five coordinate. The zinc complex is in contrast different. As observed for L3, it is possible to generate simple ZnL3 complexes but these are prone to intramolecular cyclisation where an aniline nitrogen couples with the secondary amine to form a coordinated indizine

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Synthesis, crystal structures, Hirshfeld surface analysis, antioxidant activity and molecular docking studies of thiomethylbenzimidazole ligand and its mononuclear Zn(II) complex

Sahki,

Bouchouit,

Benslama

et al. 2025

Journal of Molecular Structure

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The nickel, copper and zinc complexes of potentially heptadentate nitrogen–sulfur donor ligands

Cited by 3 publications

References 54 publications

A tripodal aminothioether ligand scaffold: Synthesis and coordination to zirconium and hafnium

A tripodal aminothioether ligand scaffold: Synthesis and coordination to zirconium and hafnium

The nickel, copper and zinc complexes of a potentially heptadentate nitrogen donor ligands

Synthesis, crystal structures, Hirshfeld surface analysis, antioxidant activity and molecular docking studies of thiomethylbenzimidazole ligand and its mononuclear Zn(II) complex

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