Question

explain why compound with Si = Si linkages are rare. Inorganic chemistry​

Answer 1

Answer:

A single bond made up of only π orbitals has been discovered in a silicon analogue of bicyclobutane. This is a rare find since π bonds are usually accompanied by σ bonds when they are found in double or triple bonds.

Compounds with π single bonds are highly unstable, isomerising into singly σ-bonded structures. A few have been made though, notably a P2B2 ring with a single π bond between the boron atoms.