Abstract
In the mononuclear title complex, [HgCl2(C22H17N3)], synthesized from the quinoline-derived Schiff base N 1-phenyl-N 4-[(quinolin-2-yl)methylidene]benzene-1,4-diamine (PQMBD) and HgCl2, the coordination sphere around the Hg2+ atom is distorted tetrahedral, comprising two Cl atoms [Hg—Cl = 2.3487 (14) and 2.4490 (15) Å] and two N atom donors from the PQMBD ligand, viz. the quinolyl and the imine N atom [Hg—N = 2.270 (4) and 2.346 (4) Å, respectively]. The dihedral angle between the two benzene rings attached to the amino group is 43.7 (3)°. In the crystal, N—H⋯Cl and C—H⋯Cl hydrogen bonds, as well as π–π stacking interactions between one phenyl ring and the pyridine ring of the quinoline moiety of an adjacent molecule [centroid-to-centroid separation = 3.617 (4) Å] are observed, resulting in a three-dimensional network.
Highlights
HgCl2, the coordination sphere around the Hg2+ atom is distorted tetrahedral, comprising two Cl atoms [Hg—Cl =
Crystals of the title complex suitable for X-ray analysis was obtained within 3 days by slow evaporation of the DMF solvent
The N-bound H-atom was located in a difference Fourier maps, and the positions restrained to N—H = 0.86 Å and
Summary
In the mononuclear title complex, [HgCl2(C22H17N3)], synthesized from the quinoline-derived Schiff base N1-phenyl-N4[(quinolin-2-yl)methylidene]benzene-1,4-diamine (PQMBD) For reports of quinolyl derivatives of Schiff bases, see: Motswainyana et al (2013); Das et al (2013); Song et al. For background to related Schiff base–metal complexes, see: Faizi & Hussain (2014); Faizi et al. For related Hg-containing structures, see: Marjani et al (2009); Faizi & Sen (2014), and for related Schiff base complexes, see: Penkova et al (2009, 2010); 253 parameters
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