Hydrothermal synthesis, crystal structures, and properties of Co-II and Ni-II supramolecular complexes with 2,4,6-trimethyl benzoate and 4,4 '-bipyridyl

作者：Indrani Murugan^*; Ramasubramanian Ramasamy; Kumaresan Su*****andi; Kang Sung Kwon; Chen Min; Du Miao

来源：Polyhedron, 2008, 27(18): 3593-3600.

DOI：10.1016/j.poly.2008.09.003

• Co-II and Ni-II complexes
• 2,4,6-Trimethylbenzoate
• 4,4 '-Bipyridyl
• Hydrogen bonding, structures and properties

Two new coordination complexes, viz. [Co(tmb)2(4,4'-bpy)(2)(H2O)(2)](Htmb)(2) (1) and ([Ni(tmb)(2)(mu-4,4'-bpy)(2)(H2O)(2)](4,4'-bpy)](n) (2). have been hydrothermally synthesized by reaction of the corresponding metal acetate with 2,4,6-trimethylbenzoic acid (Htmb) and 4,4'-bipyridyl (4,4'-bpy). X-ray single-crystal diffraction suggests that complex 1 represents a discrete mononuclear species in which the central metal ion is coordinated by the terminal carboxylate moiety and the 4,4'-bipyridyl ligand. The crystal structure of complex 2 reveals a 1D chain coordination polymer in which the Ni(II) ions are connected by the bridging 4,4'-bipyridyl ligands. In both cases, the coordination arrays are further extended via hydrogen bonding interactions to generate 3D supramolecular networks. Complexes I and 2 have also been characterized by spectroscopic (IR and UV/Vis), thermal (TGA) and magnetic susceptibility measurements. In addition, both complexes exhibit antimicrobial activity.

• 出版日期2008-12-12
• 单位天津师范大学