As proposed by Frost et al. , Uranyl pentagonal dipyramids share edges with each other .
As proposed by Frost et al. , Uranyl pentagonal dipyramids are then connected to uranyl hexagonal dipyramids on both sides .
As proposed by Frost et al. , Uranyl pentagonal dipyramids share edges with each other , and are then connected to uranyl hexagonal dipyramids on both sides .