Citation: Shamrai, N.B.; Varfolomeev, M.B.; Plyukhin, V.V.; Kuz'min, E.A.; Saf'yanov, Yu.N. (1977). Structure of periodates of the rare-earth elements Ln I O5 (H2 O)4 (Ln = Pr-Lu And Y). Koordinatsionnaya Khimiya (= Coordination Chemistry (USSR)), 3, pp. 1588-1593.
Formula: H8 Ho I O9
Chemical name: Ho I O5 (H2 O)4
List type: noninterleaving
List: 2D
Basis: (0;1;0 0;0;1)
Dimensionality: 2
Formula: Ho4 I4 O36 (Ho I O9)
Multiplicity: 1