Why trisityl amine (SiH3)3H is weaker base than (CH3)3N.Explain with reference to back-bonding.

Dear Menka,

Back bonding is special type of bond which is formed b/w sp 2 hybridised central atom which must have empty p orbital . Due to presence of this empty p orbital it pulls he electron from another p orbital which is near by it . This of bond formation is known as back-bonding.It is also known as p pie- p pie bond b'coz of the overlapping of p-p orbitals.

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