Supramolecular Assemblies Formed by Cooperative Metal Coordination and Dimerization of theN-(2-pyrimidyl)-N′-(3-pyridyl)urea Ligand via Hydrogen Bonding
The supramolecular structures of two metal complexes, [CoCl2L2] (1) and [ZnCl2L2] (2), where L = N-(2-pyrimidyl)-N′-(3-pyridyl)urea, are reported. The complexes feature zigzag chains formed by the self-dimerization of the ligand via a pair of Nurea–H···Npyrimidyl hydrogen bonds with the motif. Only the pyridyl nitrogen atom coordinates to the metal atom whereas the two pyrimidyl N donors are involved