STRUCTURE OF BF3

by • 22/08/2013 • GeneralComments (0)406

PLANNER TRIANGLE MOLECULE:

Boron Flouride (BF3),Sulphurdioxide (SO2) and Ethene (C2HA) are the examples of planner triangle molecules.

 

STRUCTURE OF BF3

BF3 is a triangle shape molecule with bond angle of 120°. There are three active electron pairs around the Boron atom.

EPRT:

In terms of EPRT, three pairs of electrons are so adjusted that repulsion is minimum, which is achieved by placing each F-atom at the corners of Equivalent triangle at 120° bond angle shape:

 

HOM

In terms of HOM, Boron atom undergoes sp2 hybridization producing three sp2 hybrid orbitals:

 

B (ground state) : 1S2 , 252 , 2px1

B (excited state) : 1S2 , 252 , 2px1, 2py1

After hybridization three sp2 hybrid orbital are formed.

These three hybrid orbitals overlap with pz orbital of F-atom producing sigma-bond giving BF3.

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