Abstract
The asymmetric unit of the title coordination polymer, [Cu(C18H16Br2N2O2)]n, consists of a Schiff base complex in which a crystallographic twofold rotation axis bisects the central C—C bonds of the n-butyl spacers of the designated Schiff base ligands, making symmetry-related dimer units, which are twisted around CuII atoms in a bis-bidentate coordination mode. In the crystal, these dimeric units are connected through Cu—O bonds, forming one-dimensional coordination polymers, which propagate along [001]. The CuII atom adopts a square-based pyramidal coordination geometry, being coordinated by two N and two O atoms of symmetry-related ligands and by a third O atom of a neighboring complex. Furthermore, intermolecular π–π interactions [centroid–centroid distance = 3.786 (2) Å] and C—H⋯O interactions stabilize the crystal packing.
Highlights
Structure ReportsISSN 1600-5368 catena-Poly[copper(II)-{l3-4,40 -dibromo2,20 -[butane-1,4-diylbis(nitrilomethanylylidene)]diphenolato-j4N,O:N0 ,O0 :O0 }]
[Cu(C18H16Br2N2O2)]n, consists of a Schiff base complex in which a crystallographic twofold rotation axis bisects the central C—C bonds of the n-butyl spacers of the designated
Schiff base ligands, making symmetry-related dimer units, which are twisted around CuII atoms in a bis-bidentate coordination mode
Summary
ISSN 1600-5368 catena-Poly[copper(II)-{l3-4,40 -dibromo2,20 -[butane-1,4-diylbis(nitrilomethanylylidene)]diphenolato-j4N,O:N0 ,O0 :O0 }]. Hadi Kargara* and Reza Kiab a Chemistry Department, Payame Noor University, Tehran 19395-4697, I. R. of Iran, and bX-ray Crystallography Laboratory, Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran. [Cu(C18H16Br2N2O2)]n, consists of a Schiff base complex in which a crystallographic twofold rotation axis bisects the central C—C bonds of the n-butyl spacers of the designated. Schiff base ligands, making symmetry-related dimer units, which are twisted around CuII atoms in a bis-bidentate coordination mode. In the crystal, these dimeric units are connected through Cu—O bonds, forming one-dimensional coordination polymers, which propagate along [001]. The CuII atom adopts a square-based pyramidal coordination geometry, being coordinated by two N and two O atoms of symmetryrelated ligands and by a third O atom of a neighboring complex.
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