Chiral crystallization of a zinc(II) complex

Shabana Noor, Shintaro Suda, Tomoyuki Haraguchi, Fehmeeda Khatoon, Takashiro Akitsu

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


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.

Original languageEnglish
Pages (from-to)542-546
Number of pages5
JournalActa Crystallographica Section E: Crystallographic Communications
Publication statusPublished - 1 May 2021


  • Hirshfeld analysis
  • chiral crystallization
  • crystal structure
  • zinc(II)


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