Synthesis,crystal structures,and biological activities of silver(I) and cobalt(II) complexes with an azole derivative ligand

Abstract  Two new complexes, [Ag(L)₂](NO₃) · (H₂O) (1) and [Co(L)₂Cl₂] (2) [L = 1-(imidazol-1-yl-methyl)-benzotriazole], have been synthesized and structurally characterized by X-ray diffraction techniques. In complex (1), the Ag(I) atom adopts a linear coordination geometry involving the imidazole nitrogens of two ligands. The [Ag(L)₂] units are developed into a three-dimensional structure by intermolecular hydrogen bonds, π–π interactions, and Ag···O interactions. In complex (2), the Co(II) atom is in a distorted tetrahedral environment with two imidazole nitrogens and two chloride ligands. The [Co(L)₂Cl₂] units are assembled into a three-dimensional structure by intermolecular hydrogen bonds and π–π interactions. The bioactivities of both complexes have been studied, and the results indicate that complex (1) exhibits excellent radical-scavenging (RS) and fungicidal (FG) activities while complex (2) only has weak fungicidal activity. Graphical abstracts   Synthesis, crystal structures and biological activities of silver(I) and cobalt(II) complexes with an azole derivative ligand. Chang-Xue An, Xin-Li Han, Peng-Bang Wang, Zhi-Hui Zhang*, Hai-Ke Zhang and Zhi-Jin Fan Two novel complexes, [Ag(L)₂](NO₃) · (H₂O) (1) and [Co(L)₂Cl₂] (2) [L = 1-(imidazol-1-yl-methyl)-benzotriazole] have been synthesized and structurally characterized. The molecules of complexes (1) and (2) are extended to 2-D and 3-D structures by the non-coordinated bonds. The ligand and complex (1) exhibit excellent radical-scavenging and fungicidal activities. Electronic supplementary material  The online version of this article (doi:) contains supplementary material, which is available to authorized users.