Di­chlorido­(4-{[(quinolin-2-yl)methyl­idene]amino}phenol-κ²N,N′)mercury(II)

In the mononuclear title complex, [HgCl₂(C₁₆H₁₂N₂O)], synthesized from the phenolic Schiff base 4-[(quinolin-2-yl­methyl­idene)amino]­phenol (QMAP), the coordination geometry around Hg²⁺ is distorted tetra­hedral, comprising two Cl atoms [Hg—Cl = 2.3565 (12) and 2.5219 (12) Å] and two N-atom donors from the QMAP ligand, viz. one imine and the other quinoline [Hg—N = 2.392 (2) and 2.237 (2) Å, respectively]. In the crystal, O—H...Cl hydrogen bonds generate a chain structure extending along the c-axis direction. Weak C—H...Cl and π–π stacking inter­actions [minimum ring centroid separation = 3.641 (3) Å] give an overall layered structure lying parallel to (001).

[Bis(quinolin-2-ylcarbon­yl)amido-κ³N,N′,N′′]bromido­(N,N-di­methyl­formamide-κO)copper(II)

In the mononuclear title complex, [CuBr(C₂₀H₁₂N₃O₂)(C₃H₇NO)], synthesized from the quinoline-derived reduced Schiff base 4-(quinolin-2-ylmeth­yl)amino­phenol, the coordination geometry around Cu²⁺ is distorted square-pyramidal, comprising a bromide anion at the apex [Cu—Br = 2.4671 (5) Å]. The base of the pyramid is built up from one di­methyl­formamide O-atom donor [Cu—O = 2.078 (2) Å] and three N-atom donors from the monoanionic, tridentate bis­(quinolin-2-ylcarbon­yl)di­imide ligand [Cu—N_di­imide = 1.941 (3) Å, and Cu—N_quinol­yl = 2.060 (3) and 2.049 (3) Å]. An intra­molecular C—H...O occurs. In the crystal, weak methyl and aromatic C—H...Br and formyl C—H...O_carbon­yl hydrogen-bonding inter­actions generate an overall layered structure lying parallel to (001).