Pa is Protactinium structured and crystallizes in the tetragonal I4/mmm space group. Pa(1) is bonded in a distorted q6 geometry to ten equivalent Pa(1) atoms.
Pa is Protactinium structured and crystallizes in the tetragonal I4/mmm space group. Pa(1) is bonded in a distorted q6 geometry to ten equivalent Pa(1) atoms. There are two shorter (3.17 Å) and eight longer (3.20 Å) Pa(1)-Pa(1) bond lengths.