Knowledge in Coordination Compounds
Coordination Compounds [NCERT Notes]
Coordination compound. Coordination compound, any of a class of substances with chemical structures in which a central metal atom is surrounded by nonmetal atoms or groups of atoms, called ligands, joined to it by chemical bonds.
Rishi Soni
Coordination compounds
These will b helpful in the topic of coordination compounds.
Abhinav Purohit
CO-ORDINATION COMPOUNDS
Metals only exist in solution as coordination complexes, it follows then that this class of compounds is useful in a wide variety of ways. In bioinorganic chemistry and bioorganometallic chemistry, coordination complexes serve either structural or catalytic functions. An estimated 30% of proteins contain metal ions. Examples include the intensely colored vitamin B12, the heme group in hemoglobin, the cytochromes, the chlorin group in chlorophyll, and carboxypeptidase, a hydrolytic enzyme important indigestion. Another complexion enzyme is catalase, which decomposes the cell's waste hydrogen peroxide. Homogeneous catalysis is a major application of coordination compounds for the production of organic substances. Processes include hydrogenation, hydroformylation, oxidation. In one example, a combination of titanium trichloride and triethylaluminium gives rise to Ziegler–Natta catalysts, used for the polymerization of ethylene and propylene to give polymers of great commercial importance as fibers, films, and plastics. Nickel, cobalt, and copper can be extracted using hydrometallurgical processes involving complexions. They are extracted from their ores as ammine complexes. Metals can also be separated using the selective precipitation and solubility of complexions. Cyanide is used chiefly for the extraction of gold and silver from their ores.
VEDANT MILIND ATHAVALE