Hayes, Paul

Permanent URI for this collection

https://opus.uleth.ca/handle/10133/4922

Browse

Browsing Hayes, Paul by Author "MacNeil, Connor S."

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Crystal structure of a dimeric ß-diketiminate magnesium complex
    (International Union of Crystallography, 2016) MacNeil, Connor S.; Johnson, Kevin R. D.; Hayes, Paul G.; Boeré, René T.
    The solid-state structure of a dimeric ß-diketiminate magnesium(II) complex is discussed. The compound, di- -iodido-bis[({4-amino-1,5-bis[2,6-bis(propan-2- yl)phenyl]pent-3-en-2-ylidene}azanido- 2N,N0)magnesium(II)] toluene sesquisolvate, [Mg2(C29H41N2)2I2] 1.5C7H8, crystallizes as two independent molecules, each with 2/m crystallographic site symmetry, located atWyckoff sites 2c and 2d. These have symmetry-equivalent magnesium atoms bridged by -iodide ligands with very similar Mg—I distances. The two Mg atoms are located slightly below ( 0.5 A ° ) the least-squares plane defined by N–C—C–N atoms in the ligand scaffold, and are approximately tetrahedrally coordinated. One and one-half toluene solvent molecules are disordered with respect to mirror-site symmetry at Wyckoff sites 4i and 2a, respectively. In the former case, two toluene molecules interact in an off-center parallel stacking arrangement; the shortest C to C0 ( – ) distance of 3.72 (1) A ° was measured for this interaction.
  • Thumbnail Image
    Item
    Di­chlorido­bis­­[2-(pyridin-2-yl-κN)-1H-benzimidazole-κN3]nickel(II) monohydrate
    (2020) MacNeil, Connor S.; Ogweno, Aloice O.; Ojwach, Stephen O.; Hayes, Paul
    In the title complex, [NiCl2(C12H9N3)2]·H2O, a divalent nickel atom is coordinated by two 2-(pyridin-2-yl)-1H-benzimidazole ligands in a slightly distorted octa­hedral environment defined by four N donors of two N,N′-chelating ligands, along with two cis-oriented anionic chloride donors. The title complex crystallized with a water mol­ecule disordered over two positions. In the crystal, a combination of O—H⋯Cl, O—H.·O and N—H⋯Cl hydrogen bonds, together with C—H⋯O, C—H⋯Cl and C—H⋯π inter­actions, links the complex mol­ecules and the water mol­ecules to form a supra­molecular three-dimensional framework. The title complex is isostructural with the cobalt(II) dichloride complex reported previously [Das et al. (2011[Das, S., Guha, S., Banerjee, A., Lohar, S., Sahana, A. & Das, D. (2011). Org. Biomol. Chem. 9, 7097-7104.]). Org. Biomol. Chem. 9, 7097–7107].