Answer to Question #104703 in Organic Chemistry for Uyobong

Question #104703
the geometry and hybridization of the following that will convey a non-zero dipole on them
(I) a molecule with six steric number (number of electrons on the central atoms) of which two are bonded electrons and four is non bonded
(ii) a molecule with five steric number of which three are bonded electrons and two is non bonded by
1
Expert's answer
2020-03-09T09:42:42-0400

(a) molecule with six steric number (number of electrons on the central atoms) of which two are bonded electrons and four is non bonded 



Steric number - 6 (6 electron groups), electron geometry - octahedral, molecule geometry - linear. Such a molecule (when two atoms of grey color) are the same, dipole moments will cancel. For a molecule to have a non zero dipole moment these two atoms should be different.

Hybridization - sp3d2 or d2sp3


(d)a molecule with five steric number of which three are bonded electrons and two is non bonded by



Steric number - 5, electron geometry - trigonal bipyramidal, molecule geometry - T-shaped. The dipole moments will not cancel as lone pairs push the bonding pairs away thus making the molecule nonsymmetrical.

Hybridization is - sp3d of dsp3


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