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Compared to the first coordination sphere, the second coordination sphere has a less direct influence on the reactivity and chemical properties of the metal complex. Nonetheless the second coordination sphere is relevant to understanding reactions of the metal complex, including the mechanisms of ligand exchange and catalysis.
Chloro(pyridine)cobaloxime is a coordination compound containing a Co III center with octahedral coordination. It has been considered as a model compound of vitamin B 12 for studying the properties and mechanism of action of the vitamin.
This intermediate is then heated to induce coordination of one of the outer sphere chloride ligands: [Co(NH 3) 5 (OH 2)]Cl 3 → [Co(NH 3) 5 Cl]Cl 2 + H 2 O. The dication [Co(NH 3) 5 Cl] 2+ has idealized C 4v symmetry. [3] [4] In an aqueous solution, chloropentaamminecobalt(III) chloride reforms aquopentammine complex.
Cisplatin, PtCl 2 (NH 3) 2, is a coordination complex of platinum(II) with two chloride and two ammonia ligands.It is one of the most successful anticancer drugs. A coordination complex is a chemical compound consisting of a central atom or ion, which is usually metallic and is called the coordination centre, and a surrounding array of bound molecules or ions, that are in turn known as ligands ...
In chemistry, a template reaction is any of a class of ligand-based reactions that occur between two or more adjacent coordination sites on a metal center. In the absence of the metal ion, the same organic reactants produce different products. The term is mainly used in coordination chemistry.
Hexaamminecobalt(III) chloride is the chemical compound with the formula [Co(NH 3) 6]Cl 3.It is the chloride salt of the coordination complex [Co(NH 3) 6] 3+, which is considered an archetypal "Werner complex", named after the pioneer of coordination chemistry, Alfred Werner.
In coordination chemistry, metal ammine complexes are metal complexes containing at least one ammonia (NH 3) ligand. "Ammine" is spelled this way for historical reasons; [1] in contrast, alkyl or aryl bearing ligands are spelt with a single "m". Almost all metal ions bind ammonia as a ligand, but the most prevalent examples of ammine complexes ...
Shilov cycle The overall charge is omitted from the complexes since the exact coordination sphere of the active species is unknown.. The Shilov system is a classic example of catalytic C-H bond activation and oxidation which preferentially activates stronger C-H bonds over weaker C-H bonds for an overall partial oxidation.