Crystal Structures of Inorganic Oxoacid Salts Perceived as Cation Arrays: A Periodic-Graph Approach - Inorganic 3D Structures - page 37

Fig. 2 Different representations of the Lu(ClO 4 ) 3 crystal structure: (a) all valence bonds are
considered; (b) primary simplified net (standard representation); (c) secondary simplified net
(underlying net); (d) packing net. The Voronoi polyhedron is shown for one of the Lu atoms
primary simplified net coincides with the so-called standard representation [ 30 ] ,
where the structural groups are selected according to a conventional view of the
structure. For instance, it is natural to consider the crystal structure of an inorganic
oxoacid salt as a framework of metal cations and oxoanions (Fig. 2a ). The secondary
simplification procedure is used if the primary simplified net contains 0-coordinated