Crystal structure of {(S)-1-phenyl-N,N-bis­[(pyridin-2-yl)meth­yl]ethanamine-κ(3) N,N′,N′′}bis­(thio­cyanato-κN)zinc from synchrotron data

The title Zn(II) complex, [Zn(NCS)(2)(C(20)H(21)N(3))], has been characterized by synchrotron single-crystal diffraction and FT–IR spectroscopy. The central Zn(II) ion has a distorted square-pyramidal coordination geometry, with three N atoms of the chiral (S) 1-phenyl-N,N-bis­[(pyridin-2-yl)meth­yl]ethanamine (S-ppme) ligand and one N atom of a thio­cyanate anion in the equatorial plane, and one N atom of another thio­cyanate anion at the apical position. The average Zn—N(S-ppme) and Zn—N(NCS) bond lengths are 2.183 (2) and 1.986 (2) Å, respectively. In the crystal, inter­molecular C—H⋯S hydrogen bonds and a face-to-face π–π inter­action [centroid–centroid distance = 3.482 (1) Å] link the mol­ecules and give rise to a supra­molecular sheet structure parallel to the ac plane.