Crystal structure and Hirshfeld surface analysis of {2-[bis­(pyridin-2-ylmeth­yl)amino]­ethane-1-thiol­ato}­chlorido­cadmium(II)

Abstract

A mononuclear cadmium(II) complex [CdLCl], where HL = 2-[bis­(pyridin-2-ylmeth­yl)amino]­ethane-1-thiol, was synthesized and characterized by single-crystal X-ray diffraction and Hirshfeld analysis.

The title compound, [Cd(C₁₄H₁₆N₃S)Cl] or [CdLCl] (1), where LH = 2-[bis­(pyridin-2-ylmeth­yl)amino]­ethane-1-thiol, was prepared and structurally characterized. The Cd²⁺ complex crystallizes in P2₁/c with a distorted trigonal–bipyramidal metal coordination geometry. Supra­molecular inter­actions in 1 include parallel offset face-to-face inter­actions between inversion-related pyridyl rings and potential hydrogen bonds with chlorine or sulfur as the acceptor. Additional cooperative pyrid­yl–pyridyl inter­actions with roughly 45° tilt angles and centroid–centroid distances of less than 5.5 Å likely also contribute to the overall solid-state stability. Hirshfeld surface analysis indicates that H⋯H (51.2%), Cl⋯H/H⋯Cl (13.9%), C⋯H/H⋯C (12.3%) and S⋯H/H⋯S (11.8%) inter­actions are dominant in the solid state.