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Bis­(4-fluoro­benzoato)-κ2 O,O′;κO-(4-fluoro­benzoic acid-κO)bis­(nico­tinamide-κN 1)copper(II)

By Hacali Necefoğlu, Füreya Elif Özbek, Vijdan Öztürk, Barış Tercan and Tuncer Hökelek


In the title CuII complex, [Cu(C7H4FO2)2(C7H5FO2)(C6H6N2O)2], the CuII cation is coordinated by two N atoms of two nicotinamide (NA) ligands, and by four O atoms from two 4-fluoro­benzoate (PFB) anions and one 4-fluoro­benzoic acid (PFBA) mol­ecule, in a distorted octa­hedral geometry. In the mol­ecule, two Cu—O bond lengths are significantly longer than the other two. The dihedral angles between the carboxyl­ate groups and the adjacent benzene rings are 11.08 (14), 7.62 (13) and 5.73 (11)°, while the benzene rings are oriented at dihedral angles of 15.62 (6), 33.71 (8) and 26.60 (8)°. In the crystal structure, extensive N—H⋯O, C—H⋯F and C—H⋯O hydrogen bonds link the mol­ecules into a three-dimensional network. π–π contacts between the benzene rings [centroid-to-centroid distances = 3.5517 (15), 3.8456 (14) and 3.9265 (13) Å] further stabilize the crystal structure

Topics: Metal-Organic Papers
Publisher: International Union of Crystallography
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Provided by: PubMed Central

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