Crystal structure of (μ2-7-{[bis-(pyridin-2-ylmeth-yl)amino-1κ3 N, N', N'']meth-yl}-5-chloro-quinolin-8-olato-2κ N;1:2κ2 O)tri-chlorido-1κ Cl,2κ2 Cl-dizinc(II)

Acta Crystallogr E Crystallogr Commun. 2024 Oct 15;80(Pt 11):1175-1179. doi: 10.1107/S2056989024009782. eCollection 2024 Oct 1.

Abstract

The title compound, [Zn2(C22H18ClN4O)Cl3], is a dinuclear zinc(II) complex with three chlorido ligands and one penta-dentate ligand containing quinolin-8-olato and bis-(pyridin-2-ylmeth-yl)amine groups. One of the two ZnII atom adopts a tetra-hedral geometry and coordinates two chlorido ligands with chelate coord-ination of the N and O atoms of the quinolin-8-olato group in the ligand. The other ZnII atom adopts a distorted trigonal-bipyramidal geometry, and coordinates one chlorido-O atom of the quinolin-8-olato group and three N atoms of the bis-(pyridin-2-ylmeth-yl)amine unit. In the crystal, two mol-ecules are associated through a pair of inter-molecular C-H⋯Cl hydrogen bonds, forming a dimer with an R 2 2(12) ring motif. Another inter-molecular C-H⋯Cl hydrogen bond forms a spiral C(8) chain running parallel to the [010] direction. The dimers are linked by these two inter-molecular C-H⋯Cl hydrogen bonds, generating a ribbon sheet structure in ac plane. Two other inter-molecular C-H⋯Cl hydrogen bonds form a C(7) chain along the c-axis direction and another C(7) chain generated by a d-glide plane. The mol-ecules are cross-linked through the four inter-molecular C-H⋯Cl hydrogen bonds to form a three-dimensional network.

Keywords: 8-quinolinol; C—H⋯Cl inter­actions; bis­(2-picol­yl)amine; crystal structure; dinuclear zinc(II) complex.