Question

structure of diborane B2H6 ..

why diborane is electron deficient ? electrophile​

Answer 1

Answer:

$\bold\red{Diborane}$

• Molecular Formula - $\pink{B_{2}H_{6}}$

• Diborane consists of two Boron (B) and six hydrogen (H) atoms making chains of bonds forming the compound.

• Each Boron atom is connected to two terminal Hydrogen atoms ($\bold\green{H_{t}}$) and two bridging Hydrogen atoms ($\bold\green{H_{b}}$).

• Diborane is electron deficient species.

• It is called electron deficient because of the incomplete octet.

• Boron need 5 bonds to complete it's octet but in Diborane, only 4 bonds are made by Boron.

• It is 3-centre-2-electron bond which is weak substitute for 2-centre-2-electron bond.

• Since, it has absence of electrons and incomplete octet , it is also an electrophile.

• A famous terminology is given to the bond formed in Diborane, called Banana Bond.

$\bold\purple{Note:-}$ Refer to the attachment for structure.

Answer 2

Answer:

Diborane(6), generally known as diborane is the chemical compound consisting of boron and hydrogen with the formula B2H6. It is a colorless, pyrophoric gas with a repulsively sweet odor. Synonyms include boroethane, boron hydride, and diboron hexahydride. Diborane is a key boron compound with a variety of applications. It has attracted wide attention for its electronic structure. Its derivatives are useful reagents.