In: Chemistry
10.41 predict the geometries of the following
A) SaCl53
B) PF62
C) CIF22
D) IF42
I think you have errorneously written the anions so I am giving as per norms
A. There is no such structure may be typo error
B. PF6- : Central atom phosphorus has 5 valence electrons and 1 extra for negative charge making total of 6
there are 6 F so there will be 6 P-F sigma bond hence the geometry will be octaheral
C. ClF2- : Central atom Chlorine has 7 valence electrons and 1 extra for negative charge making total of 8
there are 2 F so there will be 2 Cl-F sigma bond leaving 6 electron which exist as 3 lone pair hence the geometry will be (2+3) hence the geometry will be trigonal bipyramidal and molecular shape will be linear
D. IF4- The electron geometry of IF4+ will be octahedral and shape will be square planar.
Central atom Iodine has 7 valence electrons and 1 plus for negative charge making total of 8
there are 4 F so there will be 4 I-F sigma bond leaving 4 electron which exist as 2 lone pair hence the geometry will be (4+2)