Abstract
In the title centrosymmetric binuclear complex, [Cu2(C8H7O2)4(C6H6N2O)2], the Cu atoms [Cu⋯Cu = 2.6375 (6) Å] are bridged by four 4-methylbenzoate (PMB) ligands. The four nearest O atoms around each CuII ion form a distorted square-planar arrangement, and the distorted square-pyramidal coordination is completed by the pyridine N atom of the isonicotinamide (INA) ligand. Each CuII ion is displaced by 0.2633 (1) Å from the plane of the four O atoms, with an average Cu—O distance of 1.974 (2) Å. The dihedral angles between carboxylate groups and the adjacent benzene rings are 7.88 (19) and 9.68 (10)°, while the benzene rings are oriented at a dihedral angle of 85.90 (9)°. The pyridine ring is oriented at dihedral angles of 8.59 (7) and 83.89 (9)° with respect to the benzene rings. In the crystal structure, intermolecular N—H⋯O hydrogen bonds link the molecules into a three-dimensional network. π–π contacts between the benzene rings and between the pyridine and benzene rings, [centroid–centroid distances = 3.563 (2) and 3.484 (2) Å, respectively] may further stabilize the crystal structure.
Highlights
The four nearest O atoms around each CuII ion form a distorted square-planar arrangement, and the distorted square-pyramidal coordination is completed by the pyridine
The dihedral angles between carboxylate groups and the adjacent benzene rings are 7.88 (19) and 9.68 (10), while the benzene rings are oriented at a dihedral angle of 85.90 (9)
The pyridine ring is oriented at dihedral angles of 8.59 (7) and 83.89 (9) with respect to the benzene rings
Summary
R factor = 0.043; wR factor = 0.087; data-to-parameter ratio = 18.2
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have