![]() ![]() The chloride ions in Cl 3 can be exchanged with a variety of other anions such as nitrate, bromide, iodide, sulfamate to afford the corresponding X 3 derivative. Upon heating, hexamminecobalt(III) begins to lose some of its ammine ligands, eventually producing a stronger oxidant. In contrast, labile metal ammine complexes, such as Cl 2, react rapidly with acids, reflecting the lability of the Ni(II)–NH 3 bonds. As a manifestation of its inertness, Cl 3 can be recrystallized unchanged from concentrated hydrochloric acid: the NH 3 is so tightly bound to the Co(III) centers that it does not dissociate to allow its protonation. The cation obeys the 18-electron rule and is considered to be a classic example of an exchange inert metal complex. ![]() 3+ is diamagnetic, with a low-spin 3d 6 octahedral Co(III) center. Other similar complexes also had color names, such as purpureo (Latin: purple) for a cobalt pentammine complex, and praseo (Greek: green) and violeo (Latin: violet) for two isomeric tetrammine complexes. This name has been discarded as modern chemistry considers color less important than molecular structure. Originally salts of 3+ were described as the luteo (Latin: yellow) complex of cobalt. The cation itself is a metal ammine complex with six ammonia ligands attached to the cobalt(III) ion. It is the chloride salt of the coordination complex 3+, which is considered an archetypal "Werner complex", named after the pioneer of coordination chemistry, Alfred Werner. ![]() Hexaamminecobalt(III) chloride is the chemical compound with the formula Cl 3. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |