Title of article :
Chiral crystallization of a zinc(II) complex
Author/Authors :
Noor, Shabana Department of Applied Sciences & Humanities - Faculty of Engineering & Technology - Jamia Millia Islamia, India , Suda, Shintaro Department of Chemistry - Faculty of Science - Tokyo University of Science, Japan , Haraguchi, Tomoyuki Department of Chemistry - Faculty of Science - Tokyo University of Science, Japan , Khatoon, Fehmeeda Department of Applied - Sciences and Humanities - Faculty of Engineering and Technology, India , Akitsu, Takashiro Department of Chemistry - Faculty of Science - Tokyo University of Science, Japan
Abstract :
The compound, {6,6′-dimethoxy-2,2′-[(4-azaheptane-1,7-diyl)bis(nitrilomethanylidyne)]diphenolato}zinc(II) methanol monosolvate, [Zn(C22H27N3O4)]·CH3OH, at 298 K crystallizes in the orthorhombic space group Pna21. The Zn atom is coordinated by a pentadentate Schiff base ligand in a distorted trigonal–bipyramidal N3O2 geometry. The equatorial plane is formed by the two phenolic O and one amine N atom. The axial positions are occupied by two amine N atoms. The distorted bipyramidal geometry is also supported by the trigonality index (τ), which is found to be 0.85 for the molecule. In the crystal, methanol solvent molecule is connected to the complex molecule by an O—H⋯O hydrogen bond and the complex molecules are connected by weak supramolecular interactions, so achiral molecules generate a chiral crystal. The Hirshfeld surface analysis suggests that H⋯H contacts account for the largest percentage of all interactions.
Keywords :
chiral crystallization , crystal structure , zinc(II) , Hirshfeld analysis
Journal title :
Acta Crystallographica Section E: Crystallographic Communications
