Fig. 4
From: A zeolitic vanadotungstate family with structural diversity and ultrahigh porosity for catalysis
Models of the building units and corresponding hypothetical structures. a Three preliminary building units (top) and five secondary building units (bottom); b frameworks of the VT zeolite family constructed by the units from the front view (top) and side view (bottom); W (blue), V (grey), O (red); and c energy–density map for the proposed structures
