Trisilyamine (SiH_3)_3N is | vedclass

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Question

(D) In trisilyamine $(SiH_3)_3N$,the lone pair of electrons on the nitrogen atom is donated into the empty $d$-orbitals of the silicon atoms through $

Vedclass · Accepted Answer

trigonal planar and weakly basic

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(D) In trisilyamine $(SiH_3)_3N$,the lone pair of electrons on the nitrogen atom is donated into the empty $d$-orbitals of the silicon atoms through $p\pi-d\pi$ back-bonding.This delocalization of the lone pair makes the nitrogen atom $sp^2$ hybridized,resulting in a trigonal planar geometry.Due to this back-bonding,the lone pair is not available for donation,making the molecule extremely weakly basic.

Trisilyamine $(SiH_3)_3N$ is

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