Research Article: Aqua{4,4′,6,6′-tetrachloro-2,2′-[(2,2-dimethylpropane-1,3-diyl)bis(nitrilomethanylylidene)]diphenolato}zinc

Date Published: July 01, 2012

Publisher: International Union of Crystallography

Author(s): Hadi Kargar, Reza Kia, Saeideh Abbasian, Muhammad Nawaz Tahir.


The asymmetric unit of the title compound, [Zn(C19H16Cl4N2O2)(H2O)], comprises two crystallographically independent mol­ecules. The geometry around the ZnII atoms is distorted trigonal–bipyramidal, supported by the N2O2 donor atoms of the tetradentate Schiff base and a coordinating water mol­ecule. The dihedral angles between the benzene rings in the two mol­ecules are 34.10 (15) Å and 30.61 (15) Å. In the crystal, neighbouring independent mol­ecules are linked by pairs of O—H⋯O hydrogen bonds, forming dimers with R22(6) ring motifs, and by O—H⋯Cl hydrogen bonds. There are short Cl⋯Cl [3.4728 (16), 3.4863 (16), and 3.388 (1) Å] contacts present, and mol­ecules are also linked by C—H⋯O and π–π [centroid–centroid distance = 3.671 (2) Å] inter­actions.

Partial Text

For applications of Schiff base ligands in coordination chemistry, see: Granovski et al. (1993 ▶); Blower et al. (1998 ▶). For a related structure, see: Zhong-Lu et al. (2006 ▶). For standard bond lengths, see: Allen et al. (1987 ▶). For hydrogen-bond motifs, see: Bernstein et al. (1995 ▶). For van der Waals radii, see: Bondi (1964 ▶).




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