Bonding in Coordination Compounds: Werner’s theory was the first successful attempt to describe the nature of bonding in coordination compounds. However, the simplest theory which explains the nature of bonding within the coordination sphere was proposed by Linus Pauling (1931) and is known as Valence Bond Theory. According to this theory- The central metal loses a requisite number of electrons (equal to its valency) to form the cation. The cation provides a number of empty orbitals (equal to its coordination number) for the formation of covalent (coordinate) bonds with the ligands. The cation orbitals i.e. s, p or d (depending … Continue reading Bonding in Coordination Compounds