Chemical Bonding

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Predict whether the following molecules are iso-structural or not. Justify your answer.

NMe₃ and N(SiMe₃)₃.

#Chemistry #Inorganic Chemistry

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Gaurav Gardi ·2013-03-27 22:33:24

No.
structure of NMe3 is pyramidal but that of N(SiH₃)₃ is trigonal planar.
Hybridisation of N in NMe3 is sp³ and that in N(SiH3)3 is sp².
The reason is that in N(SiH₃)₃ Si has empty d-orbital and N has a lone pair of electron so it donates its lone pair of electron into the empty d-orbital of Si forming a pÏ€-dÏ€ back bond.

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Bitan Chakraborty Good!!! Now, plz go to Organic Forum and Answer the question. Also ask your friends to participate.... :)
Upvote·0· Reply ·2013-03-28 02:06:00
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Anurag Ghosh ·2013-03-29 06:58:03

bhaiya plz explain d p pi-d pi back bond????

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Gaurav Gardi back bond is formed when one of the bonding atoms has an empty d-orbital and another one has a lone pair of electron easily available for donation.In this example N has a lone pair of electron which is available for donation(due to its small size electron cloud density around it is very high) and Si has an empty d-orbital.As electron are transfered from p-orbital of N to d-orbital of Si it is called pÏ€-dÏ€ back bond.
Upvote·0· Reply ·2013-03-30 02:28:20
Anurag Ghosh Thank u bhaiya...:)
Upvote·0· Reply ·2013-03-30 04:27:11
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Basic Integral Calculus Operators Symbols Matrix Cases

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° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω

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Chemical Bonding

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