Bis(Μ-4-FormylBenzoato-Κ2 O:O′)Bis[(4-FormylBenzoato-Κ2 O,O′)Bis(IsoNicotinAmide-Κn 1)Copper(II)]
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Date
2013Author
Sertçelik, Mustafa
Delibaş, Nagihan Çaylak
Necefoğlu, Hacali
Hökelek, Tuncer
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The asymmetric unit of the centrosymmetric dinuclear title compound, [Cu2(C8H5O3)4(C6H6N2O)4], contains one half of the complex molecule. The CuII atoms are bridged by the carboxylate groups of two 4-formylbenzoate (FOB) anions. Besides the two bridging FOB anions, one additional chelating FOB anion and two isonicotinamide (INA) ligands complete the distorted CuN2O4 octahedral coordination of each Cu2+ cation. Within the asymmetric unit, the benzene and pyridine rings are oriented at dihedral angles of 25.1 (3) and 12.6 (3)°, respectively. In the crystal, N—H⋯O and C—H⋯O hydrogen bonds link the molecules into a three-dimensional network. π–π contacts between the pyridine rings [shortest centroid–centroid distance = 3.821 (3) Å] may further stabilize the crystal structure. One of the formyl groups of the two FOB anions is disordered over two sets of sites with an occupancy ratio of 0.65:0.35.
URI
https://doi.org/10.1107/S1600536813010908https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3647822/
http://hdl.handle.net/11655/18129