page_title: Transition metal pyridine complexes
section_title: Octahedral complexes
hierarchical_section_title: Transition metal pyridine complexes / Octahedral complexes
caption_attribution_description: English: Structure of Chloro(pyridine)cobaloxime, fixed coordinating bond
context_page_description: Transition metal pyridine complexes encompas many coordination complexess that contain pyridine as a ligand. Most examples are mixed-ligand complexes. Many variants of pyridine are also known to coordinate to metal ions, such as the methylpyridines, quinolines, and more complex rings.
context_section_description: Owing to the relatively wide C-N-C angle, the 2,6-hydrogen atoms interfere with the adjacent ligands.  Consequently, relatively few octahedral homoleptic pyridine complexes are known. These include [Ru(py)₆]²⁺. and . Far more common are complexes of the type [MCl₂(py)₄]ⁿ⁺, which are invariably trans.  Other common classes of complexes are the tris(pyridine) trihalides [MCl₃(py)₃] (M = Ti, Cr, Rh, Ir).
caption: Chloro(pyridine)cobaloxime.
exif: {}