The molecular structure of WCl6 is octahedral (Oh) , but WH6 is trigonal prismatic (D3h) .
a) Derive the irreducible representations that are spanned by the six σ bond vectors of WH6 .
b/ What 5d, 6s and 6p orbitals of W have the proper irreducible representations to have the potential for use in forming σ bonds in WCl6 (Oh) and WH6 (D3h) ?
c/ Describe whether or not it is possible to distinguish an octahedral structure from a trigonal prismatic geometry using only the number of observed infrared WX6 stretching vibrational modes .
d/ Construct a schematic molecular orbital diagram for WH6 using the tungsten 5d , 6s and 6p and the hydrogen 1s orbitals as the valence orbitals and place the proper number of valence electrons into the molecular orbitals.