In the title structure, [Cd(C5H2N5)2(C3H7NO)2]n or [Cd(adci)2(DMF)2]n, the Cd2+ ion is located on a twofold rotation axis and is six-coordinated in a CdN4O2 manner by four imidazole N atoms of four symmetry-related 2-amino-4,5-dicyanoimidazolate (adci) anions in the equatorial plane and by two O atoms of symmetry-related N,N-dimethylformamide (DMF) ligands in axial positions. The adci− anions bridge adjacent Cd2+ ions [shortest Cd...Cd separation = 6.733 (3) Å] into a layered coordination polymer extending parallel to (001). The primary amino group and the non-coordinating cyano groups of adci− anions are involved in hydrogen-bonding interactions with DMF ligands to stabilize the crystal structure.
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Document Type: Research Article
College of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, People's Republic of China
School of Textile and Clothing, Nantong University, Nantong 226019, People's Republic of China
January 1, 2015